Compound Interest

Percentage Accurate: 28.5% → 94.7%
Time: 23.2s
Alternatives: 18
Speedup: 38.0×

Specification

?
\[\begin{array}{l} \\ 100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \end{array} \]
(FPCore (i n)
 :precision binary64
 (* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))))
double code(double i, double n) {
	return 100.0 * ((pow((1.0 + (i / n)), n) - 1.0) / (i / n));
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    code = 100.0d0 * ((((1.0d0 + (i / n)) ** n) - 1.0d0) / (i / n))
end function
public static double code(double i, double n) {
	return 100.0 * ((Math.pow((1.0 + (i / n)), n) - 1.0) / (i / n));
}
def code(i, n):
	return 100.0 * ((math.pow((1.0 + (i / n)), n) - 1.0) / (i / n))
function code(i, n)
	return Float64(100.0 * Float64(Float64((Float64(1.0 + Float64(i / n)) ^ n) - 1.0) / Float64(i / n)))
end
function tmp = code(i, n)
	tmp = 100.0 * ((((1.0 + (i / n)) ^ n) - 1.0) / (i / n));
end
code[i_, n_] := N[(100.0 * N[(N[(N[Power[N[(1.0 + N[(i / n), $MachinePrecision]), $MachinePrecision], n], $MachinePrecision] - 1.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 18 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 28.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ 100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \end{array} \]
(FPCore (i n)
 :precision binary64
 (* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))))
double code(double i, double n) {
	return 100.0 * ((pow((1.0 + (i / n)), n) - 1.0) / (i / n));
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    code = 100.0d0 * ((((1.0d0 + (i / n)) ** n) - 1.0d0) / (i / n))
end function
public static double code(double i, double n) {
	return 100.0 * ((Math.pow((1.0 + (i / n)), n) - 1.0) / (i / n));
}
def code(i, n):
	return 100.0 * ((math.pow((1.0 + (i / n)), n) - 1.0) / (i / n))
function code(i, n)
	return Float64(100.0 * Float64(Float64((Float64(1.0 + Float64(i / n)) ^ n) - 1.0) / Float64(i / n)))
end
function tmp = code(i, n)
	tmp = 100.0 * ((((1.0 + (i / n)) ^ n) - 1.0) / (i / n));
end
code[i_, n_] := N[(100.0 * N[(N[(N[Power[N[(1.0 + N[(i / n), $MachinePrecision]), $MachinePrecision], n], $MachinePrecision] - 1.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}
\end{array}

Alternative 1: 94.7% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := {\left(1 + \frac{i}{n}\right)}^{n}\\ t_1 := \frac{t_0 + -1}{\frac{i}{n}}\\ \mathbf{if}\;t_1 \leq -5 \cdot 10^{-77}:\\ \;\;\;\;\frac{t_0 \cdot 100 + -100}{\frac{i}{n}}\\ \mathbf{elif}\;t_1 \leq 0:\\ \;\;\;\;100 \cdot \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right)}{i}\right)\\ \mathbf{elif}\;t_1 \leq \infty:\\ \;\;\;\;100 \cdot \left(\left(\frac{n}{i} - \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left(n \cdot t_0\right) - \frac{n}{i}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;n \cdot 100\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (pow (+ 1.0 (/ i n)) n)) (t_1 (/ (+ t_0 -1.0) (/ i n))))
   (if (<= t_1 -5e-77)
     (/ (+ (* t_0 100.0) -100.0) (/ i n))
     (if (<= t_1 0.0)
       (* 100.0 (* n (/ (expm1 (* n (log1p (/ i n)))) i)))
       (if (<= t_1 INFINITY)
         (* 100.0 (+ (- (/ n i) (/ n i)) (- (* (/ 1.0 i) (* n t_0)) (/ n i))))
         (* n 100.0))))))
double code(double i, double n) {
	double t_0 = pow((1.0 + (i / n)), n);
	double t_1 = (t_0 + -1.0) / (i / n);
	double tmp;
	if (t_1 <= -5e-77) {
		tmp = ((t_0 * 100.0) + -100.0) / (i / n);
	} else if (t_1 <= 0.0) {
		tmp = 100.0 * (n * (expm1((n * log1p((i / n)))) / i));
	} else if (t_1 <= ((double) INFINITY)) {
		tmp = 100.0 * (((n / i) - (n / i)) + (((1.0 / i) * (n * t_0)) - (n / i)));
	} else {
		tmp = n * 100.0;
	}
	return tmp;
}
public static double code(double i, double n) {
	double t_0 = Math.pow((1.0 + (i / n)), n);
	double t_1 = (t_0 + -1.0) / (i / n);
	double tmp;
	if (t_1 <= -5e-77) {
		tmp = ((t_0 * 100.0) + -100.0) / (i / n);
	} else if (t_1 <= 0.0) {
		tmp = 100.0 * (n * (Math.expm1((n * Math.log1p((i / n)))) / i));
	} else if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = 100.0 * (((n / i) - (n / i)) + (((1.0 / i) * (n * t_0)) - (n / i)));
	} else {
		tmp = n * 100.0;
	}
	return tmp;
}
def code(i, n):
	t_0 = math.pow((1.0 + (i / n)), n)
	t_1 = (t_0 + -1.0) / (i / n)
	tmp = 0
	if t_1 <= -5e-77:
		tmp = ((t_0 * 100.0) + -100.0) / (i / n)
	elif t_1 <= 0.0:
		tmp = 100.0 * (n * (math.expm1((n * math.log1p((i / n)))) / i))
	elif t_1 <= math.inf:
		tmp = 100.0 * (((n / i) - (n / i)) + (((1.0 / i) * (n * t_0)) - (n / i)))
	else:
		tmp = n * 100.0
	return tmp
function code(i, n)
	t_0 = Float64(1.0 + Float64(i / n)) ^ n
	t_1 = Float64(Float64(t_0 + -1.0) / Float64(i / n))
	tmp = 0.0
	if (t_1 <= -5e-77)
		tmp = Float64(Float64(Float64(t_0 * 100.0) + -100.0) / Float64(i / n));
	elseif (t_1 <= 0.0)
		tmp = Float64(100.0 * Float64(n * Float64(expm1(Float64(n * log1p(Float64(i / n)))) / i)));
	elseif (t_1 <= Inf)
		tmp = Float64(100.0 * Float64(Float64(Float64(n / i) - Float64(n / i)) + Float64(Float64(Float64(1.0 / i) * Float64(n * t_0)) - Float64(n / i))));
	else
		tmp = Float64(n * 100.0);
	end
	return tmp
end
code[i_, n_] := Block[{t$95$0 = N[Power[N[(1.0 + N[(i / n), $MachinePrecision]), $MachinePrecision], n], $MachinePrecision]}, Block[{t$95$1 = N[(N[(t$95$0 + -1.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -5e-77], N[(N[(N[(t$95$0 * 100.0), $MachinePrecision] + -100.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 0.0], N[(100.0 * N[(n * N[(N[(Exp[N[(n * N[Log[1 + N[(i / n), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]] - 1), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, Infinity], N[(100.0 * N[(N[(N[(n / i), $MachinePrecision] - N[(n / i), $MachinePrecision]), $MachinePrecision] + N[(N[(N[(1.0 / i), $MachinePrecision] * N[(n * t$95$0), $MachinePrecision]), $MachinePrecision] - N[(n / i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(n * 100.0), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := {\left(1 + \frac{i}{n}\right)}^{n}\\
t_1 := \frac{t_0 + -1}{\frac{i}{n}}\\
\mathbf{if}\;t_1 \leq -5 \cdot 10^{-77}:\\
\;\;\;\;\frac{t_0 \cdot 100 + -100}{\frac{i}{n}}\\

\mathbf{elif}\;t_1 \leq 0:\\
\;\;\;\;100 \cdot \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right)}{i}\right)\\

\mathbf{elif}\;t_1 \leq \infty:\\
\;\;\;\;100 \cdot \left(\left(\frac{n}{i} - \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left(n \cdot t_0\right) - \frac{n}{i}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;n \cdot 100\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < -4.99999999999999963e-77

    1. Initial program 99.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/100.0%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg100.0%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in100.0%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. fma-def100.0%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{\frac{i}{n}} \]
      5. metadata-eval100.0%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{\frac{i}{n}} \]
      6. metadata-eval100.0%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{\frac{i}{n}} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{\frac{i}{n}}} \]
    4. Step-by-step derivation
      1. fma-udef100.0%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}{\frac{i}{n}} \]
      2. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100} + -100}{\frac{i}{n}} \]
    5. Applied egg-rr100.0%

      \[\leadsto \frac{\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100 + -100}}{\frac{i}{n}} \]

    if -4.99999999999999963e-77 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < 0.0

    1. Initial program 24.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/24.1%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg24.1%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in24.1%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. fma-def24.1%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{\frac{i}{n}} \]
      5. metadata-eval24.1%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{\frac{i}{n}} \]
      6. metadata-eval24.1%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{\frac{i}{n}} \]
    3. Simplified24.1%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{\frac{i}{n}}} \]
    4. Step-by-step derivation
      1. fma-udef24.1%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}{\frac{i}{n}} \]
      2. metadata-eval24.1%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}{\frac{i}{n}} \]
      3. metadata-eval24.1%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}{\frac{i}{n}} \]
      4. distribute-lft-in24.1%

        \[\leadsto \frac{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      5. sub-neg24.1%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}{\frac{i}{n}} \]
      6. associate-*r/24.1%

        \[\leadsto \color{blue}{100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}} \]
      7. *-commutative24.1%

        \[\leadsto \color{blue}{\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \cdot 100} \]
      8. associate-/r/23.7%

        \[\leadsto \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \cdot 100 \]
      9. *-commutative23.7%

        \[\leadsto \color{blue}{\left(n \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \cdot 100 \]
      10. pow-to-exp23.7%

        \[\leadsto \left(n \cdot \frac{\color{blue}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n}} - 1}{i}\right) \cdot 100 \]
      11. expm1-def37.2%

        \[\leadsto \left(n \cdot \frac{\color{blue}{\mathsf{expm1}\left(\log \left(1 + \frac{i}{n}\right) \cdot n\right)}}{i}\right) \cdot 100 \]
      12. *-commutative37.2%

        \[\leadsto \left(n \cdot \frac{\mathsf{expm1}\left(\color{blue}{n \cdot \log \left(1 + \frac{i}{n}\right)}\right)}{i}\right) \cdot 100 \]
      13. log1p-udef99.0%

        \[\leadsto \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \color{blue}{\mathsf{log1p}\left(\frac{i}{n}\right)}\right)}{i}\right) \cdot 100 \]
    5. Applied egg-rr99.0%

      \[\leadsto \color{blue}{\left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right)}{i}\right) \cdot 100} \]

    if 0.0 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < +inf.0

    1. Initial program 96.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. div-sub96.1%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{i}{n}} - \frac{1}{\frac{i}{n}}\right)} \]
      2. *-un-lft-identity96.1%

        \[\leadsto 100 \cdot \left(\frac{\color{blue}{1 \cdot {\left(1 + \frac{i}{n}\right)}^{n}}}{\frac{i}{n}} - \frac{1}{\frac{i}{n}}\right) \]
      3. div-inv95.9%

        \[\leadsto 100 \cdot \left(\frac{1 \cdot {\left(1 + \frac{i}{n}\right)}^{n}}{\color{blue}{i \cdot \frac{1}{n}}} - \frac{1}{\frac{i}{n}}\right) \]
      4. times-frac96.1%

        \[\leadsto 100 \cdot \left(\color{blue}{\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}} - \frac{1}{\frac{i}{n}}\right) \]
      5. clear-num96.0%

        \[\leadsto 100 \cdot \left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} - \color{blue}{\frac{n}{i}}\right) \]
      6. *-un-lft-identity96.0%

        \[\leadsto 100 \cdot \left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} - \color{blue}{1 \cdot \frac{n}{i}}\right) \]
      7. prod-diff95.9%

        \[\leadsto 100 \cdot \color{blue}{\left(\mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right) + \mathsf{fma}\left(-\frac{n}{i}, 1, \frac{n}{i} \cdot 1\right)\right)} \]
    3. Applied egg-rr95.9%

      \[\leadsto 100 \cdot \color{blue}{\left(\mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right) + \mathsf{fma}\left(-\frac{n}{i}, 1, \frac{n}{i} \cdot 1\right)\right)} \]
    4. Step-by-step derivation
      1. +-commutative95.9%

        \[\leadsto 100 \cdot \color{blue}{\left(\mathsf{fma}\left(-\frac{n}{i}, 1, \frac{n}{i} \cdot 1\right) + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right)} \]
      2. fma-udef95.9%

        \[\leadsto 100 \cdot \left(\color{blue}{\left(\left(-\frac{n}{i}\right) \cdot 1 + \frac{n}{i} \cdot 1\right)} + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right) \]
      3. *-rgt-identity95.9%

        \[\leadsto 100 \cdot \left(\left(\left(-\frac{n}{i}\right) \cdot 1 + \color{blue}{\frac{n}{i}}\right) + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right) \]
      4. *-rgt-identity95.9%

        \[\leadsto 100 \cdot \left(\left(\color{blue}{\left(-\frac{n}{i}\right)} + \frac{n}{i}\right) + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right) \]
      5. distribute-neg-frac95.9%

        \[\leadsto 100 \cdot \left(\left(\color{blue}{\frac{-n}{i}} + \frac{n}{i}\right) + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right) \]
      6. fma-udef96.0%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \color{blue}{\left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} + \left(-\frac{n}{i} \cdot 1\right)\right)}\right) \]
      7. *-rgt-identity96.0%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} + \left(-\color{blue}{\frac{n}{i}}\right)\right)\right) \]
      8. unsub-neg96.0%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \color{blue}{\left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} - \frac{n}{i}\right)}\right) \]
      9. associate-/r/96.2%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n}}{1} \cdot n\right)} - \frac{n}{i}\right)\right) \]
      10. /-rgt-identity96.2%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left(\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n}} \cdot n\right) - \frac{n}{i}\right)\right) \]
    5. Simplified96.2%

      \[\leadsto 100 \cdot \color{blue}{\left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} \cdot n\right) - \frac{n}{i}\right)\right)} \]

    if +inf.0 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n))

    1. Initial program 0.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 88.4%

      \[\leadsto \color{blue}{100 \cdot n} \]
    3. Step-by-step derivation
      1. *-commutative88.4%

        \[\leadsto \color{blue}{n \cdot 100} \]
    4. Simplified88.4%

      \[\leadsto \color{blue}{n \cdot 100} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification97.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq -5 \cdot 10^{-77}:\\ \;\;\;\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100 + -100}{\frac{i}{n}}\\ \mathbf{elif}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq 0:\\ \;\;\;\;100 \cdot \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right)}{i}\right)\\ \mathbf{elif}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq \infty:\\ \;\;\;\;100 \cdot \left(\left(\frac{n}{i} - \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left(n \cdot {\left(1 + \frac{i}{n}\right)}^{n}\right) - \frac{n}{i}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;n \cdot 100\\ \end{array} \]

Alternative 2: 93.5% accurate, 0.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := {\left(1 + \frac{i}{n}\right)}^{n}\\ t_1 := \frac{t_0 + -1}{\frac{i}{n}}\\ \mathbf{if}\;t_1 \leq -5 \cdot 10^{-77}:\\ \;\;\;\;\frac{t_0 \cdot 100 + -100}{\frac{i}{n}}\\ \mathbf{elif}\;t_1 \leq 0:\\ \;\;\;\;\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \left(100 \cdot \frac{n}{i}\right)\\ \mathbf{elif}\;t_1 \leq \infty:\\ \;\;\;\;100 \cdot \left(\left(\frac{n}{i} - \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left(n \cdot t_0\right) - \frac{n}{i}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;n \cdot 100\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (pow (+ 1.0 (/ i n)) n)) (t_1 (/ (+ t_0 -1.0) (/ i n))))
   (if (<= t_1 -5e-77)
     (/ (+ (* t_0 100.0) -100.0) (/ i n))
     (if (<= t_1 0.0)
       (* (expm1 (* n (log1p (/ i n)))) (* 100.0 (/ n i)))
       (if (<= t_1 INFINITY)
         (* 100.0 (+ (- (/ n i) (/ n i)) (- (* (/ 1.0 i) (* n t_0)) (/ n i))))
         (* n 100.0))))))
double code(double i, double n) {
	double t_0 = pow((1.0 + (i / n)), n);
	double t_1 = (t_0 + -1.0) / (i / n);
	double tmp;
	if (t_1 <= -5e-77) {
		tmp = ((t_0 * 100.0) + -100.0) / (i / n);
	} else if (t_1 <= 0.0) {
		tmp = expm1((n * log1p((i / n)))) * (100.0 * (n / i));
	} else if (t_1 <= ((double) INFINITY)) {
		tmp = 100.0 * (((n / i) - (n / i)) + (((1.0 / i) * (n * t_0)) - (n / i)));
	} else {
		tmp = n * 100.0;
	}
	return tmp;
}
public static double code(double i, double n) {
	double t_0 = Math.pow((1.0 + (i / n)), n);
	double t_1 = (t_0 + -1.0) / (i / n);
	double tmp;
	if (t_1 <= -5e-77) {
		tmp = ((t_0 * 100.0) + -100.0) / (i / n);
	} else if (t_1 <= 0.0) {
		tmp = Math.expm1((n * Math.log1p((i / n)))) * (100.0 * (n / i));
	} else if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = 100.0 * (((n / i) - (n / i)) + (((1.0 / i) * (n * t_0)) - (n / i)));
	} else {
		tmp = n * 100.0;
	}
	return tmp;
}
def code(i, n):
	t_0 = math.pow((1.0 + (i / n)), n)
	t_1 = (t_0 + -1.0) / (i / n)
	tmp = 0
	if t_1 <= -5e-77:
		tmp = ((t_0 * 100.0) + -100.0) / (i / n)
	elif t_1 <= 0.0:
		tmp = math.expm1((n * math.log1p((i / n)))) * (100.0 * (n / i))
	elif t_1 <= math.inf:
		tmp = 100.0 * (((n / i) - (n / i)) + (((1.0 / i) * (n * t_0)) - (n / i)))
	else:
		tmp = n * 100.0
	return tmp
function code(i, n)
	t_0 = Float64(1.0 + Float64(i / n)) ^ n
	t_1 = Float64(Float64(t_0 + -1.0) / Float64(i / n))
	tmp = 0.0
	if (t_1 <= -5e-77)
		tmp = Float64(Float64(Float64(t_0 * 100.0) + -100.0) / Float64(i / n));
	elseif (t_1 <= 0.0)
		tmp = Float64(expm1(Float64(n * log1p(Float64(i / n)))) * Float64(100.0 * Float64(n / i)));
	elseif (t_1 <= Inf)
		tmp = Float64(100.0 * Float64(Float64(Float64(n / i) - Float64(n / i)) + Float64(Float64(Float64(1.0 / i) * Float64(n * t_0)) - Float64(n / i))));
	else
		tmp = Float64(n * 100.0);
	end
	return tmp
end
code[i_, n_] := Block[{t$95$0 = N[Power[N[(1.0 + N[(i / n), $MachinePrecision]), $MachinePrecision], n], $MachinePrecision]}, Block[{t$95$1 = N[(N[(t$95$0 + -1.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -5e-77], N[(N[(N[(t$95$0 * 100.0), $MachinePrecision] + -100.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 0.0], N[(N[(Exp[N[(n * N[Log[1 + N[(i / n), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]] - 1), $MachinePrecision] * N[(100.0 * N[(n / i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, Infinity], N[(100.0 * N[(N[(N[(n / i), $MachinePrecision] - N[(n / i), $MachinePrecision]), $MachinePrecision] + N[(N[(N[(1.0 / i), $MachinePrecision] * N[(n * t$95$0), $MachinePrecision]), $MachinePrecision] - N[(n / i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(n * 100.0), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := {\left(1 + \frac{i}{n}\right)}^{n}\\
t_1 := \frac{t_0 + -1}{\frac{i}{n}}\\
\mathbf{if}\;t_1 \leq -5 \cdot 10^{-77}:\\
\;\;\;\;\frac{t_0 \cdot 100 + -100}{\frac{i}{n}}\\

\mathbf{elif}\;t_1 \leq 0:\\
\;\;\;\;\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \left(100 \cdot \frac{n}{i}\right)\\

\mathbf{elif}\;t_1 \leq \infty:\\
\;\;\;\;100 \cdot \left(\left(\frac{n}{i} - \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left(n \cdot t_0\right) - \frac{n}{i}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;n \cdot 100\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < -4.99999999999999963e-77

    1. Initial program 99.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/100.0%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg100.0%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in100.0%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. fma-def100.0%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{\frac{i}{n}} \]
      5. metadata-eval100.0%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{\frac{i}{n}} \]
      6. metadata-eval100.0%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{\frac{i}{n}} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{\frac{i}{n}}} \]
    4. Step-by-step derivation
      1. fma-udef100.0%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}{\frac{i}{n}} \]
      2. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100} + -100}{\frac{i}{n}} \]
    5. Applied egg-rr100.0%

      \[\leadsto \frac{\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100 + -100}}{\frac{i}{n}} \]

    if -4.99999999999999963e-77 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < 0.0

    1. Initial program 24.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/24.1%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg24.1%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in24.1%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. fma-def24.1%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{\frac{i}{n}} \]
      5. metadata-eval24.1%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{\frac{i}{n}} \]
      6. metadata-eval24.1%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{\frac{i}{n}} \]
    3. Simplified24.1%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{\frac{i}{n}}} \]
    4. Step-by-step derivation
      1. fma-udef24.1%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}{\frac{i}{n}} \]
      2. metadata-eval24.1%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}{\frac{i}{n}} \]
      3. metadata-eval24.1%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}{\frac{i}{n}} \]
      4. distribute-lft-in24.1%

        \[\leadsto \frac{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      5. sub-neg24.1%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}{\frac{i}{n}} \]
      6. associate-*r/24.1%

        \[\leadsto \color{blue}{100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}} \]
      7. *-commutative24.1%

        \[\leadsto \color{blue}{\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \cdot 100} \]
      8. div-inv24.1%

        \[\leadsto \color{blue}{\left(\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot \frac{1}{\frac{i}{n}}\right)} \cdot 100 \]
      9. clear-num23.7%

        \[\leadsto \left(\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot \color{blue}{\frac{n}{i}}\right) \cdot 100 \]
      10. associate-*l*23.6%

        \[\leadsto \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot \left(\frac{n}{i} \cdot 100\right)} \]
      11. pow-to-exp23.6%

        \[\leadsto \left(\color{blue}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n}} - 1\right) \cdot \left(\frac{n}{i} \cdot 100\right) \]
      12. expm1-def37.2%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\log \left(1 + \frac{i}{n}\right) \cdot n\right)} \cdot \left(\frac{n}{i} \cdot 100\right) \]
      13. *-commutative37.2%

        \[\leadsto \mathsf{expm1}\left(\color{blue}{n \cdot \log \left(1 + \frac{i}{n}\right)}\right) \cdot \left(\frac{n}{i} \cdot 100\right) \]
      14. log1p-udef97.1%

        \[\leadsto \mathsf{expm1}\left(n \cdot \color{blue}{\mathsf{log1p}\left(\frac{i}{n}\right)}\right) \cdot \left(\frac{n}{i} \cdot 100\right) \]
    5. Applied egg-rr97.1%

      \[\leadsto \color{blue}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \left(\frac{n}{i} \cdot 100\right)} \]

    if 0.0 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < +inf.0

    1. Initial program 96.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. div-sub96.1%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{i}{n}} - \frac{1}{\frac{i}{n}}\right)} \]
      2. *-un-lft-identity96.1%

        \[\leadsto 100 \cdot \left(\frac{\color{blue}{1 \cdot {\left(1 + \frac{i}{n}\right)}^{n}}}{\frac{i}{n}} - \frac{1}{\frac{i}{n}}\right) \]
      3. div-inv95.9%

        \[\leadsto 100 \cdot \left(\frac{1 \cdot {\left(1 + \frac{i}{n}\right)}^{n}}{\color{blue}{i \cdot \frac{1}{n}}} - \frac{1}{\frac{i}{n}}\right) \]
      4. times-frac96.1%

        \[\leadsto 100 \cdot \left(\color{blue}{\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}} - \frac{1}{\frac{i}{n}}\right) \]
      5. clear-num96.0%

        \[\leadsto 100 \cdot \left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} - \color{blue}{\frac{n}{i}}\right) \]
      6. *-un-lft-identity96.0%

        \[\leadsto 100 \cdot \left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} - \color{blue}{1 \cdot \frac{n}{i}}\right) \]
      7. prod-diff95.9%

        \[\leadsto 100 \cdot \color{blue}{\left(\mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right) + \mathsf{fma}\left(-\frac{n}{i}, 1, \frac{n}{i} \cdot 1\right)\right)} \]
    3. Applied egg-rr95.9%

      \[\leadsto 100 \cdot \color{blue}{\left(\mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right) + \mathsf{fma}\left(-\frac{n}{i}, 1, \frac{n}{i} \cdot 1\right)\right)} \]
    4. Step-by-step derivation
      1. +-commutative95.9%

        \[\leadsto 100 \cdot \color{blue}{\left(\mathsf{fma}\left(-\frac{n}{i}, 1, \frac{n}{i} \cdot 1\right) + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right)} \]
      2. fma-udef95.9%

        \[\leadsto 100 \cdot \left(\color{blue}{\left(\left(-\frac{n}{i}\right) \cdot 1 + \frac{n}{i} \cdot 1\right)} + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right) \]
      3. *-rgt-identity95.9%

        \[\leadsto 100 \cdot \left(\left(\left(-\frac{n}{i}\right) \cdot 1 + \color{blue}{\frac{n}{i}}\right) + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right) \]
      4. *-rgt-identity95.9%

        \[\leadsto 100 \cdot \left(\left(\color{blue}{\left(-\frac{n}{i}\right)} + \frac{n}{i}\right) + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right) \]
      5. distribute-neg-frac95.9%

        \[\leadsto 100 \cdot \left(\left(\color{blue}{\frac{-n}{i}} + \frac{n}{i}\right) + \mathsf{fma}\left(\frac{1}{i}, \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}}, -\frac{n}{i} \cdot 1\right)\right) \]
      6. fma-udef96.0%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \color{blue}{\left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} + \left(-\frac{n}{i} \cdot 1\right)\right)}\right) \]
      7. *-rgt-identity96.0%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} + \left(-\color{blue}{\frac{n}{i}}\right)\right)\right) \]
      8. unsub-neg96.0%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \color{blue}{\left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n}}{\frac{1}{n}} - \frac{n}{i}\right)}\right) \]
      9. associate-/r/96.2%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n}}{1} \cdot n\right)} - \frac{n}{i}\right)\right) \]
      10. /-rgt-identity96.2%

        \[\leadsto 100 \cdot \left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left(\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n}} \cdot n\right) - \frac{n}{i}\right)\right) \]
    5. Simplified96.2%

      \[\leadsto 100 \cdot \color{blue}{\left(\left(\frac{-n}{i} + \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} \cdot n\right) - \frac{n}{i}\right)\right)} \]

    if +inf.0 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n))

    1. Initial program 0.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 88.4%

      \[\leadsto \color{blue}{100 \cdot n} \]
    3. Step-by-step derivation
      1. *-commutative88.4%

        \[\leadsto \color{blue}{n \cdot 100} \]
    4. Simplified88.4%

      \[\leadsto \color{blue}{n \cdot 100} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification95.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq -5 \cdot 10^{-77}:\\ \;\;\;\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100 + -100}{\frac{i}{n}}\\ \mathbf{elif}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq 0:\\ \;\;\;\;\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \left(100 \cdot \frac{n}{i}\right)\\ \mathbf{elif}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq \infty:\\ \;\;\;\;100 \cdot \left(\left(\frac{n}{i} - \frac{n}{i}\right) + \left(\frac{1}{i} \cdot \left(n \cdot {\left(1 + \frac{i}{n}\right)}^{n}\right) - \frac{n}{i}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;n \cdot 100\\ \end{array} \]

Alternative 3: 79.9% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := 100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ t_1 := n \cdot \frac{\left(n \cdot 100\right) \cdot \log \left(\frac{i}{n}\right)}{i}\\ \mathbf{if}\;n \leq -7.5 \cdot 10^{-17}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;n \leq -8.2 \cdot 10^{-56}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;n \leq -7 \cdot 10^{-192}:\\ \;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 6.5 \cdot 10^{-197}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 2.05 \cdot 10^{-75}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 2.2 \cdot 10^{-32}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (* 100.0 (/ n (/ i (expm1 i)))))
        (t_1 (* n (/ (* (* n 100.0) (log (/ i n))) i))))
   (if (<= n -7.5e-17)
     t_0
     (if (<= n -8.2e-56)
       t_1
       (if (<= n -7e-192)
         (* 100.0 (/ (expm1 i) (/ i n)))
         (if (<= n 6.5e-197)
           (* 100.0 (/ 0.0 (/ i n)))
           (if (<= n 2.05e-75)
             (* 100.0 (/ i (/ i n)))
             (if (<= n 2.2e-32) t_1 t_0))))))))
double code(double i, double n) {
	double t_0 = 100.0 * (n / (i / expm1(i)));
	double t_1 = n * (((n * 100.0) * log((i / n))) / i);
	double tmp;
	if (n <= -7.5e-17) {
		tmp = t_0;
	} else if (n <= -8.2e-56) {
		tmp = t_1;
	} else if (n <= -7e-192) {
		tmp = 100.0 * (expm1(i) / (i / n));
	} else if (n <= 6.5e-197) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 2.05e-75) {
		tmp = 100.0 * (i / (i / n));
	} else if (n <= 2.2e-32) {
		tmp = t_1;
	} else {
		tmp = t_0;
	}
	return tmp;
}
public static double code(double i, double n) {
	double t_0 = 100.0 * (n / (i / Math.expm1(i)));
	double t_1 = n * (((n * 100.0) * Math.log((i / n))) / i);
	double tmp;
	if (n <= -7.5e-17) {
		tmp = t_0;
	} else if (n <= -8.2e-56) {
		tmp = t_1;
	} else if (n <= -7e-192) {
		tmp = 100.0 * (Math.expm1(i) / (i / n));
	} else if (n <= 6.5e-197) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 2.05e-75) {
		tmp = 100.0 * (i / (i / n));
	} else if (n <= 2.2e-32) {
		tmp = t_1;
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(i, n):
	t_0 = 100.0 * (n / (i / math.expm1(i)))
	t_1 = n * (((n * 100.0) * math.log((i / n))) / i)
	tmp = 0
	if n <= -7.5e-17:
		tmp = t_0
	elif n <= -8.2e-56:
		tmp = t_1
	elif n <= -7e-192:
		tmp = 100.0 * (math.expm1(i) / (i / n))
	elif n <= 6.5e-197:
		tmp = 100.0 * (0.0 / (i / n))
	elif n <= 2.05e-75:
		tmp = 100.0 * (i / (i / n))
	elif n <= 2.2e-32:
		tmp = t_1
	else:
		tmp = t_0
	return tmp
function code(i, n)
	t_0 = Float64(100.0 * Float64(n / Float64(i / expm1(i))))
	t_1 = Float64(n * Float64(Float64(Float64(n * 100.0) * log(Float64(i / n))) / i))
	tmp = 0.0
	if (n <= -7.5e-17)
		tmp = t_0;
	elseif (n <= -8.2e-56)
		tmp = t_1;
	elseif (n <= -7e-192)
		tmp = Float64(100.0 * Float64(expm1(i) / Float64(i / n)));
	elseif (n <= 6.5e-197)
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	elseif (n <= 2.05e-75)
		tmp = Float64(100.0 * Float64(i / Float64(i / n)));
	elseif (n <= 2.2e-32)
		tmp = t_1;
	else
		tmp = t_0;
	end
	return tmp
end
code[i_, n_] := Block[{t$95$0 = N[(100.0 * N[(n / N[(i / N[(Exp[i] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(n * N[(N[(N[(n * 100.0), $MachinePrecision] * N[Log[N[(i / n), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[n, -7.5e-17], t$95$0, If[LessEqual[n, -8.2e-56], t$95$1, If[LessEqual[n, -7e-192], N[(100.0 * N[(N[(Exp[i] - 1), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 6.5e-197], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 2.05e-75], N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 2.2e-32], t$95$1, t$95$0]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := 100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\
t_1 := n \cdot \frac{\left(n \cdot 100\right) \cdot \log \left(\frac{i}{n}\right)}{i}\\
\mathbf{if}\;n \leq -7.5 \cdot 10^{-17}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;n \leq -8.2 \cdot 10^{-56}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;n \leq -7 \cdot 10^{-192}:\\
\;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 6.5 \cdot 10^{-197}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 2.05 \cdot 10^{-75}:\\
\;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 2.2 \cdot 10^{-32}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;t_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if n < -7.49999999999999984e-17 or 2.2e-32 < n

    1. Initial program 22.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 38.1%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative38.1%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. associate-/l*38.1%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{e^{i} - 1}}} \cdot 100 \]
      3. expm1-def91.1%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\mathsf{expm1}\left(i\right)}}} \cdot 100 \]
    4. Simplified91.1%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}} \cdot 100} \]

    if -7.49999999999999984e-17 < n < -8.2000000000000003e-56 or 2.05000000000000001e-75 < n < 2.2e-32

    1. Initial program 8.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/8.1%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*8.1%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative8.1%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/8.1%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg8.1%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in8.2%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def8.1%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval8.1%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval8.1%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified8.1%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Step-by-step derivation
      1. fma-udef8.2%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}{\frac{i}{n}} \]
      2. *-commutative8.2%

        \[\leadsto \frac{\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100} + -100}{\frac{i}{n}} \]
    5. Applied egg-rr8.2%

      \[\leadsto n \cdot \frac{\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100 + -100}}{i} \]
    6. Taylor expanded in n around 0 42.3%

      \[\leadsto n \cdot \frac{\color{blue}{100 \cdot \left(n \cdot \left(-1 \cdot \log n + \log i\right)\right)}}{i} \]
    7. Step-by-step derivation
      1. associate-*r*42.5%

        \[\leadsto n \cdot \frac{\color{blue}{\left(100 \cdot n\right) \cdot \left(-1 \cdot \log n + \log i\right)}}{i} \]
      2. *-commutative42.5%

        \[\leadsto n \cdot \frac{\color{blue}{\left(n \cdot 100\right)} \cdot \left(-1 \cdot \log n + \log i\right)}{i} \]
      3. mul-1-neg42.5%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \left(\color{blue}{\left(-\log n\right)} + \log i\right)}{i} \]
      4. log-rec42.5%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \left(\color{blue}{\log \left(\frac{1}{n}\right)} + \log i\right)}{i} \]
      5. +-commutative42.5%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \color{blue}{\left(\log i + \log \left(\frac{1}{n}\right)\right)}}{i} \]
      6. log-rec42.5%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \left(\log i + \color{blue}{\left(-\log n\right)}\right)}{i} \]
      7. unsub-neg42.5%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \color{blue}{\left(\log i - \log n\right)}}{i} \]
      8. log-div84.3%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \color{blue}{\log \left(\frac{i}{n}\right)}}{i} \]
    8. Simplified84.3%

      \[\leadsto n \cdot \frac{\color{blue}{\left(n \cdot 100\right) \cdot \log \left(\frac{i}{n}\right)}}{i} \]

    if -8.2000000000000003e-56 < n < -7.00000000000000029e-192

    1. Initial program 25.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 16.8%

      \[\leadsto 100 \cdot \frac{\color{blue}{e^{i} - 1}}{\frac{i}{n}} \]
    3. Step-by-step derivation
      1. expm1-def78.9%

        \[\leadsto 100 \cdot \frac{\color{blue}{\mathsf{expm1}\left(i\right)}}{\frac{i}{n}} \]
    4. Simplified78.9%

      \[\leadsto 100 \cdot \frac{\color{blue}{\mathsf{expm1}\left(i\right)}}{\frac{i}{n}} \]

    if -7.00000000000000029e-192 < n < 6.4999999999999995e-197

    1. Initial program 69.9%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 80.4%

      \[\leadsto 100 \cdot \frac{\color{blue}{1} - 1}{\frac{i}{n}} \]

    if 6.4999999999999995e-197 < n < 2.05000000000000001e-75

    1. Initial program 17.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 70.2%

      \[\leadsto 100 \cdot \frac{\color{blue}{i}}{\frac{i}{n}} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification85.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -7.5 \cdot 10^{-17}:\\ \;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \mathbf{elif}\;n \leq -8.2 \cdot 10^{-56}:\\ \;\;\;\;n \cdot \frac{\left(n \cdot 100\right) \cdot \log \left(\frac{i}{n}\right)}{i}\\ \mathbf{elif}\;n \leq -7 \cdot 10^{-192}:\\ \;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 6.5 \cdot 10^{-197}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 2.05 \cdot 10^{-75}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 2.2 \cdot 10^{-32}:\\ \;\;\;\;n \cdot \frac{\left(n \cdot 100\right) \cdot \log \left(\frac{i}{n}\right)}{i}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \end{array} \]

Alternative 4: 79.8% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \log \left(\frac{i}{n}\right)\\ t_1 := 100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \mathbf{if}\;n \leq -7.5 \cdot 10^{-17}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;n \leq -4.8 \cdot 10^{-56}:\\ \;\;\;\;\frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot t_0}{i}\\ \mathbf{elif}\;n \leq -7.5 \cdot 10^{-192}:\\ \;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 4 \cdot 10^{-199}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 2.05 \cdot 10^{-75}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 2.2 \cdot 10^{-32}:\\ \;\;\;\;n \cdot \frac{\left(n \cdot 100\right) \cdot t_0}{i}\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (log (/ i n))) (t_1 (* 100.0 (/ n (/ i (expm1 i))))))
   (if (<= n -7.5e-17)
     t_1
     (if (<= n -4.8e-56)
       (/ (* (* 100.0 (* n n)) t_0) i)
       (if (<= n -7.5e-192)
         (* 100.0 (/ (expm1 i) (/ i n)))
         (if (<= n 4e-199)
           (* 100.0 (/ 0.0 (/ i n)))
           (if (<= n 2.05e-75)
             (* 100.0 (/ i (/ i n)))
             (if (<= n 2.2e-32) (* n (/ (* (* n 100.0) t_0) i)) t_1))))))))
double code(double i, double n) {
	double t_0 = log((i / n));
	double t_1 = 100.0 * (n / (i / expm1(i)));
	double tmp;
	if (n <= -7.5e-17) {
		tmp = t_1;
	} else if (n <= -4.8e-56) {
		tmp = ((100.0 * (n * n)) * t_0) / i;
	} else if (n <= -7.5e-192) {
		tmp = 100.0 * (expm1(i) / (i / n));
	} else if (n <= 4e-199) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 2.05e-75) {
		tmp = 100.0 * (i / (i / n));
	} else if (n <= 2.2e-32) {
		tmp = n * (((n * 100.0) * t_0) / i);
	} else {
		tmp = t_1;
	}
	return tmp;
}
public static double code(double i, double n) {
	double t_0 = Math.log((i / n));
	double t_1 = 100.0 * (n / (i / Math.expm1(i)));
	double tmp;
	if (n <= -7.5e-17) {
		tmp = t_1;
	} else if (n <= -4.8e-56) {
		tmp = ((100.0 * (n * n)) * t_0) / i;
	} else if (n <= -7.5e-192) {
		tmp = 100.0 * (Math.expm1(i) / (i / n));
	} else if (n <= 4e-199) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 2.05e-75) {
		tmp = 100.0 * (i / (i / n));
	} else if (n <= 2.2e-32) {
		tmp = n * (((n * 100.0) * t_0) / i);
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(i, n):
	t_0 = math.log((i / n))
	t_1 = 100.0 * (n / (i / math.expm1(i)))
	tmp = 0
	if n <= -7.5e-17:
		tmp = t_1
	elif n <= -4.8e-56:
		tmp = ((100.0 * (n * n)) * t_0) / i
	elif n <= -7.5e-192:
		tmp = 100.0 * (math.expm1(i) / (i / n))
	elif n <= 4e-199:
		tmp = 100.0 * (0.0 / (i / n))
	elif n <= 2.05e-75:
		tmp = 100.0 * (i / (i / n))
	elif n <= 2.2e-32:
		tmp = n * (((n * 100.0) * t_0) / i)
	else:
		tmp = t_1
	return tmp
function code(i, n)
	t_0 = log(Float64(i / n))
	t_1 = Float64(100.0 * Float64(n / Float64(i / expm1(i))))
	tmp = 0.0
	if (n <= -7.5e-17)
		tmp = t_1;
	elseif (n <= -4.8e-56)
		tmp = Float64(Float64(Float64(100.0 * Float64(n * n)) * t_0) / i);
	elseif (n <= -7.5e-192)
		tmp = Float64(100.0 * Float64(expm1(i) / Float64(i / n)));
	elseif (n <= 4e-199)
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	elseif (n <= 2.05e-75)
		tmp = Float64(100.0 * Float64(i / Float64(i / n)));
	elseif (n <= 2.2e-32)
		tmp = Float64(n * Float64(Float64(Float64(n * 100.0) * t_0) / i));
	else
		tmp = t_1;
	end
	return tmp
end
code[i_, n_] := Block[{t$95$0 = N[Log[N[(i / n), $MachinePrecision]], $MachinePrecision]}, Block[{t$95$1 = N[(100.0 * N[(n / N[(i / N[(Exp[i] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[n, -7.5e-17], t$95$1, If[LessEqual[n, -4.8e-56], N[(N[(N[(100.0 * N[(n * n), $MachinePrecision]), $MachinePrecision] * t$95$0), $MachinePrecision] / i), $MachinePrecision], If[LessEqual[n, -7.5e-192], N[(100.0 * N[(N[(Exp[i] - 1), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 4e-199], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 2.05e-75], N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 2.2e-32], N[(n * N[(N[(N[(n * 100.0), $MachinePrecision] * t$95$0), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \log \left(\frac{i}{n}\right)\\
t_1 := 100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\
\mathbf{if}\;n \leq -7.5 \cdot 10^{-17}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;n \leq -4.8 \cdot 10^{-56}:\\
\;\;\;\;\frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot t_0}{i}\\

\mathbf{elif}\;n \leq -7.5 \cdot 10^{-192}:\\
\;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 4 \cdot 10^{-199}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 2.05 \cdot 10^{-75}:\\
\;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 2.2 \cdot 10^{-32}:\\
\;\;\;\;n \cdot \frac{\left(n \cdot 100\right) \cdot t_0}{i}\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 6 regimes
  2. if n < -7.49999999999999984e-17 or 2.2e-32 < n

    1. Initial program 22.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 38.1%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative38.1%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. associate-/l*38.1%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{e^{i} - 1}}} \cdot 100 \]
      3. expm1-def91.1%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\mathsf{expm1}\left(i\right)}}} \cdot 100 \]
    4. Simplified91.1%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}} \cdot 100} \]

    if -7.49999999999999984e-17 < n < -4.80000000000000001e-56

    1. Initial program 9.5%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/9.5%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg9.5%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in9.7%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. fma-def9.5%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{\frac{i}{n}} \]
      5. metadata-eval9.5%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{\frac{i}{n}} \]
      6. metadata-eval9.5%

        \[\leadsto \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{\frac{i}{n}} \]
    3. Simplified9.5%

      \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{\frac{i}{n}}} \]
    4. Step-by-step derivation
      1. fma-udef9.7%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}{\frac{i}{n}} \]
      2. metadata-eval9.7%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}{\frac{i}{n}} \]
      3. metadata-eval9.7%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}{\frac{i}{n}} \]
      4. distribute-lft-in9.5%

        \[\leadsto \frac{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      5. sub-neg9.5%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}{\frac{i}{n}} \]
      6. associate-*r/9.5%

        \[\leadsto \color{blue}{100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}} \]
      7. *-commutative9.5%

        \[\leadsto \color{blue}{\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \cdot 100} \]
      8. associate-/r/9.5%

        \[\leadsto \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \cdot 100 \]
      9. *-commutative9.5%

        \[\leadsto \color{blue}{\left(n \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \cdot 100 \]
      10. pow-to-exp9.5%

        \[\leadsto \left(n \cdot \frac{\color{blue}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n}} - 1}{i}\right) \cdot 100 \]
      11. expm1-def99.5%

        \[\leadsto \left(n \cdot \frac{\color{blue}{\mathsf{expm1}\left(\log \left(1 + \frac{i}{n}\right) \cdot n\right)}}{i}\right) \cdot 100 \]
      12. *-commutative99.5%

        \[\leadsto \left(n \cdot \frac{\mathsf{expm1}\left(\color{blue}{n \cdot \log \left(1 + \frac{i}{n}\right)}\right)}{i}\right) \cdot 100 \]
      13. log1p-udef99.5%

        \[\leadsto \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \color{blue}{\mathsf{log1p}\left(\frac{i}{n}\right)}\right)}{i}\right) \cdot 100 \]
    5. Applied egg-rr99.5%

      \[\leadsto \color{blue}{\left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right)}{i}\right) \cdot 100} \]
    6. Step-by-step derivation
      1. expm1-log1p-u99.2%

        \[\leadsto \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\mathsf{log1p}\left(\frac{i}{n}\right)\right)\right)}\right)}{i}\right) \cdot 100 \]
    7. Applied egg-rr99.2%

      \[\leadsto \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\mathsf{log1p}\left(\frac{i}{n}\right)\right)\right)}\right)}{i}\right) \cdot 100 \]
    8. Taylor expanded in n around 0 0.0%

      \[\leadsto \color{blue}{100 \cdot \frac{{n}^{2} \cdot \left(-1 \cdot \log n + \log i\right)}{i}} \]
    9. Step-by-step derivation
      1. associate-*r/0.0%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({n}^{2} \cdot \left(-1 \cdot \log n + \log i\right)\right)}{i}} \]
      2. associate-*r*0.0%

        \[\leadsto \frac{\color{blue}{\left(100 \cdot {n}^{2}\right) \cdot \left(-1 \cdot \log n + \log i\right)}}{i} \]
      3. unpow20.0%

        \[\leadsto \frac{\left(100 \cdot \color{blue}{\left(n \cdot n\right)}\right) \cdot \left(-1 \cdot \log n + \log i\right)}{i} \]
      4. mul-1-neg0.0%

        \[\leadsto \frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot \left(\color{blue}{\left(-\log n\right)} + \log i\right)}{i} \]
      5. log-rec0.0%

        \[\leadsto \frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot \left(\color{blue}{\log \left(\frac{1}{n}\right)} + \log i\right)}{i} \]
      6. +-commutative0.0%

        \[\leadsto \frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot \color{blue}{\left(\log i + \log \left(\frac{1}{n}\right)\right)}}{i} \]
      7. log-rec0.0%

        \[\leadsto \frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot \left(\log i + \color{blue}{\left(-\log n\right)}\right)}{i} \]
      8. unsub-neg0.0%

        \[\leadsto \frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot \color{blue}{\left(\log i - \log n\right)}}{i} \]
      9. log-div97.4%

        \[\leadsto \frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot \color{blue}{\log \left(\frac{i}{n}\right)}}{i} \]
    10. Simplified97.4%

      \[\leadsto \color{blue}{\frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot \log \left(\frac{i}{n}\right)}{i}} \]

    if -4.80000000000000001e-56 < n < -7.5000000000000001e-192

    1. Initial program 25.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 16.8%

      \[\leadsto 100 \cdot \frac{\color{blue}{e^{i} - 1}}{\frac{i}{n}} \]
    3. Step-by-step derivation
      1. expm1-def78.9%

        \[\leadsto 100 \cdot \frac{\color{blue}{\mathsf{expm1}\left(i\right)}}{\frac{i}{n}} \]
    4. Simplified78.9%

      \[\leadsto 100 \cdot \frac{\color{blue}{\mathsf{expm1}\left(i\right)}}{\frac{i}{n}} \]

    if -7.5000000000000001e-192 < n < 3.99999999999999993e-199

    1. Initial program 69.9%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 80.4%

      \[\leadsto 100 \cdot \frac{\color{blue}{1} - 1}{\frac{i}{n}} \]

    if 3.99999999999999993e-199 < n < 2.05000000000000001e-75

    1. Initial program 17.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 70.2%

      \[\leadsto 100 \cdot \frac{\color{blue}{i}}{\frac{i}{n}} \]

    if 2.05000000000000001e-75 < n < 2.2e-32

    1. Initial program 7.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/7.1%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*7.1%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative7.1%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/7.1%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg7.1%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in7.1%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def7.1%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval7.1%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval7.1%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified7.1%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Step-by-step derivation
      1. fma-udef7.1%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}{\frac{i}{n}} \]
      2. *-commutative7.1%

        \[\leadsto \frac{\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100} + -100}{\frac{i}{n}} \]
    5. Applied egg-rr7.1%

      \[\leadsto n \cdot \frac{\color{blue}{{\left(1 + \frac{i}{n}\right)}^{n} \cdot 100 + -100}}{i} \]
    6. Taylor expanded in n around 0 74.0%

      \[\leadsto n \cdot \frac{\color{blue}{100 \cdot \left(n \cdot \left(-1 \cdot \log n + \log i\right)\right)}}{i} \]
    7. Step-by-step derivation
      1. associate-*r*74.4%

        \[\leadsto n \cdot \frac{\color{blue}{\left(100 \cdot n\right) \cdot \left(-1 \cdot \log n + \log i\right)}}{i} \]
      2. *-commutative74.4%

        \[\leadsto n \cdot \frac{\color{blue}{\left(n \cdot 100\right)} \cdot \left(-1 \cdot \log n + \log i\right)}{i} \]
      3. mul-1-neg74.4%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \left(\color{blue}{\left(-\log n\right)} + \log i\right)}{i} \]
      4. log-rec74.4%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \left(\color{blue}{\log \left(\frac{1}{n}\right)} + \log i\right)}{i} \]
      5. +-commutative74.4%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \color{blue}{\left(\log i + \log \left(\frac{1}{n}\right)\right)}}{i} \]
      6. log-rec74.4%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \left(\log i + \color{blue}{\left(-\log n\right)}\right)}{i} \]
      7. unsub-neg74.4%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \color{blue}{\left(\log i - \log n\right)}}{i} \]
      8. log-div74.4%

        \[\leadsto n \cdot \frac{\left(n \cdot 100\right) \cdot \color{blue}{\log \left(\frac{i}{n}\right)}}{i} \]
    8. Simplified74.4%

      \[\leadsto n \cdot \frac{\color{blue}{\left(n \cdot 100\right) \cdot \log \left(\frac{i}{n}\right)}}{i} \]
  3. Recombined 6 regimes into one program.
  4. Final simplification85.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -7.5 \cdot 10^{-17}:\\ \;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \mathbf{elif}\;n \leq -4.8 \cdot 10^{-56}:\\ \;\;\;\;\frac{\left(100 \cdot \left(n \cdot n\right)\right) \cdot \log \left(\frac{i}{n}\right)}{i}\\ \mathbf{elif}\;n \leq -7.5 \cdot 10^{-192}:\\ \;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 4 \cdot 10^{-199}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 2.05 \cdot 10^{-75}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 2.2 \cdot 10^{-32}:\\ \;\;\;\;n \cdot \frac{\left(n \cdot 100\right) \cdot \log \left(\frac{i}{n}\right)}{i}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \end{array} \]

Alternative 5: 76.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq -1100000 \lor \neg \left(i \leq 3.5 \cdot 10^{+34}\right):\\ \;\;\;\;100 \cdot \frac{{\left(\frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= i -1100000.0) (not (<= i 3.5e+34)))
   (* 100.0 (/ (+ (pow (/ i n) n) -1.0) (/ i n)))
   (* 100.0 (/ n (/ i (expm1 i))))))
double code(double i, double n) {
	double tmp;
	if ((i <= -1100000.0) || !(i <= 3.5e+34)) {
		tmp = 100.0 * ((pow((i / n), n) + -1.0) / (i / n));
	} else {
		tmp = 100.0 * (n / (i / expm1(i)));
	}
	return tmp;
}
public static double code(double i, double n) {
	double tmp;
	if ((i <= -1100000.0) || !(i <= 3.5e+34)) {
		tmp = 100.0 * ((Math.pow((i / n), n) + -1.0) / (i / n));
	} else {
		tmp = 100.0 * (n / (i / Math.expm1(i)));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (i <= -1100000.0) or not (i <= 3.5e+34):
		tmp = 100.0 * ((math.pow((i / n), n) + -1.0) / (i / n))
	else:
		tmp = 100.0 * (n / (i / math.expm1(i)))
	return tmp
function code(i, n)
	tmp = 0.0
	if ((i <= -1100000.0) || !(i <= 3.5e+34))
		tmp = Float64(100.0 * Float64(Float64((Float64(i / n) ^ n) + -1.0) / Float64(i / n)));
	else
		tmp = Float64(100.0 * Float64(n / Float64(i / expm1(i))));
	end
	return tmp
end
code[i_, n_] := If[Or[LessEqual[i, -1100000.0], N[Not[LessEqual[i, 3.5e+34]], $MachinePrecision]], N[(100.0 * N[(N[(N[Power[N[(i / n), $MachinePrecision], n], $MachinePrecision] + -1.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(100.0 * N[(n / N[(i / N[(Exp[i] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq -1100000 \lor \neg \left(i \leq 3.5 \cdot 10^{+34}\right):\\
\;\;\;\;100 \cdot \frac{{\left(\frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}}\\

\mathbf{else}:\\
\;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if i < -1.1e6 or 3.49999999999999998e34 < i

    1. Initial program 55.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around inf 70.4%

      \[\leadsto 100 \cdot \frac{{\color{blue}{\left(\frac{i}{n}\right)}}^{n} - 1}{\frac{i}{n}} \]

    if -1.1e6 < i < 3.49999999999999998e34

    1. Initial program 12.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 17.6%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative17.6%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. associate-/l*17.6%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{e^{i} - 1}}} \cdot 100 \]
      3. expm1-def84.5%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\mathsf{expm1}\left(i\right)}}} \cdot 100 \]
    4. Simplified84.5%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}} \cdot 100} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification79.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq -1100000 \lor \neg \left(i \leq 3.5 \cdot 10^{+34}\right):\\ \;\;\;\;100 \cdot \frac{{\left(\frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \end{array} \]

Alternative 6: 75.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq -6 \cdot 10^{-43} \lor \neg \left(i \leq 1.05 \cdot 10^{-33}\right):\\ \;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \left(n + \left(i \cdot n\right) \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= i -6e-43) (not (<= i 1.05e-33)))
   (* 100.0 (/ (expm1 i) (/ i n)))
   (* 100.0 (+ n (* (* i n) (- 0.5 (/ 0.5 n)))))))
double code(double i, double n) {
	double tmp;
	if ((i <= -6e-43) || !(i <= 1.05e-33)) {
		tmp = 100.0 * (expm1(i) / (i / n));
	} else {
		tmp = 100.0 * (n + ((i * n) * (0.5 - (0.5 / n))));
	}
	return tmp;
}
public static double code(double i, double n) {
	double tmp;
	if ((i <= -6e-43) || !(i <= 1.05e-33)) {
		tmp = 100.0 * (Math.expm1(i) / (i / n));
	} else {
		tmp = 100.0 * (n + ((i * n) * (0.5 - (0.5 / n))));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (i <= -6e-43) or not (i <= 1.05e-33):
		tmp = 100.0 * (math.expm1(i) / (i / n))
	else:
		tmp = 100.0 * (n + ((i * n) * (0.5 - (0.5 / n))))
	return tmp
function code(i, n)
	tmp = 0.0
	if ((i <= -6e-43) || !(i <= 1.05e-33))
		tmp = Float64(100.0 * Float64(expm1(i) / Float64(i / n)));
	else
		tmp = Float64(100.0 * Float64(n + Float64(Float64(i * n) * Float64(0.5 - Float64(0.5 / n)))));
	end
	return tmp
end
code[i_, n_] := If[Or[LessEqual[i, -6e-43], N[Not[LessEqual[i, 1.05e-33]], $MachinePrecision]], N[(100.0 * N[(N[(Exp[i] - 1), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(100.0 * N[(n + N[(N[(i * n), $MachinePrecision] * N[(0.5 - N[(0.5 / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq -6 \cdot 10^{-43} \lor \neg \left(i \leq 1.05 \cdot 10^{-33}\right):\\
\;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\

\mathbf{else}:\\
\;\;\;\;100 \cdot \left(n + \left(i \cdot n\right) \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if i < -6.00000000000000007e-43 or 1.05e-33 < i

    1. Initial program 48.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 53.0%

      \[\leadsto 100 \cdot \frac{\color{blue}{e^{i} - 1}}{\frac{i}{n}} \]
    3. Step-by-step derivation
      1. expm1-def57.1%

        \[\leadsto 100 \cdot \frac{\color{blue}{\mathsf{expm1}\left(i\right)}}{\frac{i}{n}} \]
    4. Simplified57.1%

      \[\leadsto 100 \cdot \frac{\color{blue}{\mathsf{expm1}\left(i\right)}}{\frac{i}{n}} \]

    if -6.00000000000000007e-43 < i < 1.05e-33

    1. Initial program 8.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 88.9%

      \[\leadsto 100 \cdot \color{blue}{\left(n + n \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)} \]
    3. Step-by-step derivation
      1. associate-*r*89.0%

        \[\leadsto 100 \cdot \left(n + \color{blue}{\left(n \cdot i\right) \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)}\right) \]
      2. *-commutative89.0%

        \[\leadsto 100 \cdot \left(n + \color{blue}{\left(i \cdot n\right)} \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) \]
      3. associate-*r/89.0%

        \[\leadsto 100 \cdot \left(n + \left(i \cdot n\right) \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) \]
      4. metadata-eval89.0%

        \[\leadsto 100 \cdot \left(n + \left(i \cdot n\right) \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right) \]
    4. Simplified89.0%

      \[\leadsto 100 \cdot \color{blue}{\left(n + \left(i \cdot n\right) \cdot \left(0.5 - \frac{0.5}{n}\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification73.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq -6 \cdot 10^{-43} \lor \neg \left(i \leq 1.05 \cdot 10^{-33}\right):\\ \;\;\;\;100 \cdot \frac{\mathsf{expm1}\left(i\right)}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \left(n + \left(i \cdot n\right) \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\\ \end{array} \]

Alternative 7: 80.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -7.5 \cdot 10^{-192} \lor \neg \left(n \leq 1.15 \cdot 10^{-197}\right):\\ \;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= n -7.5e-192) (not (<= n 1.15e-197)))
   (* 100.0 (/ n (/ i (expm1 i))))
   (* 100.0 (/ 0.0 (/ i n)))))
double code(double i, double n) {
	double tmp;
	if ((n <= -7.5e-192) || !(n <= 1.15e-197)) {
		tmp = 100.0 * (n / (i / expm1(i)));
	} else {
		tmp = 100.0 * (0.0 / (i / n));
	}
	return tmp;
}
public static double code(double i, double n) {
	double tmp;
	if ((n <= -7.5e-192) || !(n <= 1.15e-197)) {
		tmp = 100.0 * (n / (i / Math.expm1(i)));
	} else {
		tmp = 100.0 * (0.0 / (i / n));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (n <= -7.5e-192) or not (n <= 1.15e-197):
		tmp = 100.0 * (n / (i / math.expm1(i)))
	else:
		tmp = 100.0 * (0.0 / (i / n))
	return tmp
function code(i, n)
	tmp = 0.0
	if ((n <= -7.5e-192) || !(n <= 1.15e-197))
		tmp = Float64(100.0 * Float64(n / Float64(i / expm1(i))));
	else
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	end
	return tmp
end
code[i_, n_] := If[Or[LessEqual[n, -7.5e-192], N[Not[LessEqual[n, 1.15e-197]], $MachinePrecision]], N[(100.0 * N[(n / N[(i / N[(Exp[i] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -7.5 \cdot 10^{-192} \lor \neg \left(n \leq 1.15 \cdot 10^{-197}\right):\\
\;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\

\mathbf{else}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if n < -7.5000000000000001e-192 or 1.15e-197 < n

    1. Initial program 21.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 28.4%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative28.4%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. associate-/l*28.4%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{e^{i} - 1}}} \cdot 100 \]
      3. expm1-def81.1%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\mathsf{expm1}\left(i\right)}}} \cdot 100 \]
    4. Simplified81.1%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}} \cdot 100} \]

    if -7.5000000000000001e-192 < n < 1.15e-197

    1. Initial program 69.9%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 80.4%

      \[\leadsto 100 \cdot \frac{\color{blue}{1} - 1}{\frac{i}{n}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification81.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -7.5 \cdot 10^{-192} \lor \neg \left(n \leq 1.15 \cdot 10^{-197}\right):\\ \;\;\;\;100 \cdot \frac{n}{\frac{i}{\mathsf{expm1}\left(i\right)}}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \end{array} \]

Alternative 8: 64.6% accurate, 3.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -2.6 \cdot 10^{-151}:\\ \;\;\;\;100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right)\\ \mathbf{elif}\;n \leq 5.5 \cdot 10^{-202}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= n -2.6e-151)
   (*
    100.0
    (+
     n
     (*
      n
      (+
       (*
        (* i i)
        (+ (/ 0.3333333333333333 (* n n)) (- 0.16666666666666666 (/ 0.5 n))))
       (* i (- 0.5 (/ 0.5 n)))))))
   (if (<= n 5.5e-202)
     (* 100.0 (/ 0.0 (/ i n)))
     (*
      n
      (+
       100.0
       (* 100.0 (* i (+ (+ 0.5 (/ -0.5 n)) (* i 0.16666666666666666)))))))))
double code(double i, double n) {
	double tmp;
	if (n <= -2.6e-151) {
		tmp = 100.0 * (n + (n * (((i * i) * ((0.3333333333333333 / (n * n)) + (0.16666666666666666 - (0.5 / n)))) + (i * (0.5 - (0.5 / n))))));
	} else if (n <= 5.5e-202) {
		tmp = 100.0 * (0.0 / (i / n));
	} else {
		tmp = n * (100.0 + (100.0 * (i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666)))));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if (n <= (-2.6d-151)) then
        tmp = 100.0d0 * (n + (n * (((i * i) * ((0.3333333333333333d0 / (n * n)) + (0.16666666666666666d0 - (0.5d0 / n)))) + (i * (0.5d0 - (0.5d0 / n))))))
    else if (n <= 5.5d-202) then
        tmp = 100.0d0 * (0.0d0 / (i / n))
    else
        tmp = n * (100.0d0 + (100.0d0 * (i * ((0.5d0 + ((-0.5d0) / n)) + (i * 0.16666666666666666d0)))))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (n <= -2.6e-151) {
		tmp = 100.0 * (n + (n * (((i * i) * ((0.3333333333333333 / (n * n)) + (0.16666666666666666 - (0.5 / n)))) + (i * (0.5 - (0.5 / n))))));
	} else if (n <= 5.5e-202) {
		tmp = 100.0 * (0.0 / (i / n));
	} else {
		tmp = n * (100.0 + (100.0 * (i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666)))));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if n <= -2.6e-151:
		tmp = 100.0 * (n + (n * (((i * i) * ((0.3333333333333333 / (n * n)) + (0.16666666666666666 - (0.5 / n)))) + (i * (0.5 - (0.5 / n))))))
	elif n <= 5.5e-202:
		tmp = 100.0 * (0.0 / (i / n))
	else:
		tmp = n * (100.0 + (100.0 * (i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666)))))
	return tmp
function code(i, n)
	tmp = 0.0
	if (n <= -2.6e-151)
		tmp = Float64(100.0 * Float64(n + Float64(n * Float64(Float64(Float64(i * i) * Float64(Float64(0.3333333333333333 / Float64(n * n)) + Float64(0.16666666666666666 - Float64(0.5 / n)))) + Float64(i * Float64(0.5 - Float64(0.5 / n)))))));
	elseif (n <= 5.5e-202)
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	else
		tmp = Float64(n * Float64(100.0 + Float64(100.0 * Float64(i * Float64(Float64(0.5 + Float64(-0.5 / n)) + Float64(i * 0.16666666666666666))))));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (n <= -2.6e-151)
		tmp = 100.0 * (n + (n * (((i * i) * ((0.3333333333333333 / (n * n)) + (0.16666666666666666 - (0.5 / n)))) + (i * (0.5 - (0.5 / n))))));
	elseif (n <= 5.5e-202)
		tmp = 100.0 * (0.0 / (i / n));
	else
		tmp = n * (100.0 + (100.0 * (i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666)))));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[n, -2.6e-151], N[(100.0 * N[(n + N[(n * N[(N[(N[(i * i), $MachinePrecision] * N[(N[(0.3333333333333333 / N[(n * n), $MachinePrecision]), $MachinePrecision] + N[(0.16666666666666666 - N[(0.5 / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(i * N[(0.5 - N[(0.5 / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 5.5e-202], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(n * N[(100.0 + N[(100.0 * N[(i * N[(N[(0.5 + N[(-0.5 / n), $MachinePrecision]), $MachinePrecision] + N[(i * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -2.6 \cdot 10^{-151}:\\
\;\;\;\;100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right)\\

\mathbf{elif}\;n \leq 5.5 \cdot 10^{-202}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\

\mathbf{else}:\\
\;\;\;\;n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if n < -2.6e-151

    1. Initial program 23.2%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 64.4%

      \[\leadsto 100 \cdot \color{blue}{\left(n + \left(n \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right) + n \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    3. Step-by-step derivation
      1. distribute-lft-out64.6%

        \[\leadsto 100 \cdot \left(n + \color{blue}{n \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. unpow264.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. associate--l+64.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)} + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. associate-*r/64.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. metadata-eval64.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      6. unpow264.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      7. associate-*r/64.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      8. metadata-eval64.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      9. associate-*r/64.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right) \]
      10. metadata-eval64.6%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right)\right) \]
    4. Simplified64.6%

      \[\leadsto 100 \cdot \color{blue}{\left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right)} \]

    if -2.6e-151 < n < 5.5e-202

    1. Initial program 65.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 73.3%

      \[\leadsto 100 \cdot \frac{\color{blue}{1} - 1}{\frac{i}{n}} \]

    if 5.5e-202 < n

    1. Initial program 16.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/17.1%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*17.1%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative17.1%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/17.1%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg17.1%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in17.1%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def17.1%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval17.1%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval17.1%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified17.1%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 58.9%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out58.9%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow258.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow258.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified58.9%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 65.1%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow265.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified65.1%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Step-by-step derivation
      1. associate-*l*65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{i \cdot \left(i \cdot 0.16666666666666666\right)}\right)\right) \]
      2. distribute-lft-out65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \color{blue}{\left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)}\right) \]
      3. sub-neg65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\color{blue}{\left(0.5 + \left(-\frac{0.5}{n}\right)\right)} + i \cdot 0.16666666666666666\right)\right)\right) \]
      4. distribute-neg-frac65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \color{blue}{\frac{-0.5}{n}}\right) + i \cdot 0.16666666666666666\right)\right)\right) \]
      5. metadata-eval65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{\color{blue}{-0.5}}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right) \]
    11. Applied egg-rr65.1%

      \[\leadsto n \cdot \left(100 + 100 \cdot \color{blue}{\left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)}\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification66.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -2.6 \cdot 10^{-151}:\\ \;\;\;\;100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right)\\ \mathbf{elif}\;n \leq 5.5 \cdot 10^{-202}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\ \end{array} \]

Alternative 9: 64.8% accurate, 5.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -1.85 \cdot 10^{-153} \lor \neg \left(n \leq 3.9 \cdot 10^{-194}\right):\\ \;\;\;\;n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= n -1.85e-153) (not (<= n 3.9e-194)))
   (*
    n
    (+ 100.0 (* 100.0 (* i (+ (+ 0.5 (/ -0.5 n)) (* i 0.16666666666666666))))))
   (* 100.0 (/ 0.0 (/ i n)))))
double code(double i, double n) {
	double tmp;
	if ((n <= -1.85e-153) || !(n <= 3.9e-194)) {
		tmp = n * (100.0 + (100.0 * (i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666)))));
	} else {
		tmp = 100.0 * (0.0 / (i / n));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if ((n <= (-1.85d-153)) .or. (.not. (n <= 3.9d-194))) then
        tmp = n * (100.0d0 + (100.0d0 * (i * ((0.5d0 + ((-0.5d0) / n)) + (i * 0.16666666666666666d0)))))
    else
        tmp = 100.0d0 * (0.0d0 / (i / n))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if ((n <= -1.85e-153) || !(n <= 3.9e-194)) {
		tmp = n * (100.0 + (100.0 * (i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666)))));
	} else {
		tmp = 100.0 * (0.0 / (i / n));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (n <= -1.85e-153) or not (n <= 3.9e-194):
		tmp = n * (100.0 + (100.0 * (i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666)))))
	else:
		tmp = 100.0 * (0.0 / (i / n))
	return tmp
function code(i, n)
	tmp = 0.0
	if ((n <= -1.85e-153) || !(n <= 3.9e-194))
		tmp = Float64(n * Float64(100.0 + Float64(100.0 * Float64(i * Float64(Float64(0.5 + Float64(-0.5 / n)) + Float64(i * 0.16666666666666666))))));
	else
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if ((n <= -1.85e-153) || ~((n <= 3.9e-194)))
		tmp = n * (100.0 + (100.0 * (i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666)))));
	else
		tmp = 100.0 * (0.0 / (i / n));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[Or[LessEqual[n, -1.85e-153], N[Not[LessEqual[n, 3.9e-194]], $MachinePrecision]], N[(n * N[(100.0 + N[(100.0 * N[(i * N[(N[(0.5 + N[(-0.5 / n), $MachinePrecision]), $MachinePrecision] + N[(i * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -1.85 \cdot 10^{-153} \lor \neg \left(n \leq 3.9 \cdot 10^{-194}\right):\\
\;\;\;\;n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\

\mathbf{else}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if n < -1.8500000000000001e-153 or 3.8999999999999999e-194 < n

    1. Initial program 19.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/19.6%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*19.6%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative19.6%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/19.6%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg19.6%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in19.6%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def19.6%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval19.6%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval19.6%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified19.6%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 61.5%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out61.5%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow261.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow261.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified61.5%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 64.9%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative64.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow264.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified64.9%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Step-by-step derivation
      1. associate-*l*64.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{i \cdot \left(i \cdot 0.16666666666666666\right)}\right)\right) \]
      2. distribute-lft-out64.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \color{blue}{\left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)}\right) \]
      3. sub-neg64.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\color{blue}{\left(0.5 + \left(-\frac{0.5}{n}\right)\right)} + i \cdot 0.16666666666666666\right)\right)\right) \]
      4. distribute-neg-frac64.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \color{blue}{\frac{-0.5}{n}}\right) + i \cdot 0.16666666666666666\right)\right)\right) \]
      5. metadata-eval64.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{\color{blue}{-0.5}}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right) \]
    11. Applied egg-rr64.9%

      \[\leadsto n \cdot \left(100 + 100 \cdot \color{blue}{\left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)}\right) \]

    if -1.8500000000000001e-153 < n < 3.8999999999999999e-194

    1. Initial program 65.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 73.3%

      \[\leadsto 100 \cdot \frac{\color{blue}{1} - 1}{\frac{i}{n}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification66.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -1.85 \cdot 10^{-153} \lor \neg \left(n \leq 3.9 \cdot 10^{-194}\right):\\ \;\;\;\;n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \end{array} \]

Alternative 10: 64.8% accurate, 5.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\\ \mathbf{if}\;n \leq -3.1 \cdot 10^{-146}:\\ \;\;\;\;n \cdot 100 + \left(n \cdot 100\right) \cdot t_0\\ \mathbf{elif}\;n \leq 1.65 \cdot 10^{-196}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + 100 \cdot t_0\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (* i (+ (+ 0.5 (/ -0.5 n)) (* i 0.16666666666666666)))))
   (if (<= n -3.1e-146)
     (+ (* n 100.0) (* (* n 100.0) t_0))
     (if (<= n 1.65e-196)
       (* 100.0 (/ 0.0 (/ i n)))
       (* n (+ 100.0 (* 100.0 t_0)))))))
double code(double i, double n) {
	double t_0 = i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666));
	double tmp;
	if (n <= -3.1e-146) {
		tmp = (n * 100.0) + ((n * 100.0) * t_0);
	} else if (n <= 1.65e-196) {
		tmp = 100.0 * (0.0 / (i / n));
	} else {
		tmp = n * (100.0 + (100.0 * t_0));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: t_0
    real(8) :: tmp
    t_0 = i * ((0.5d0 + ((-0.5d0) / n)) + (i * 0.16666666666666666d0))
    if (n <= (-3.1d-146)) then
        tmp = (n * 100.0d0) + ((n * 100.0d0) * t_0)
    else if (n <= 1.65d-196) then
        tmp = 100.0d0 * (0.0d0 / (i / n))
    else
        tmp = n * (100.0d0 + (100.0d0 * t_0))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double t_0 = i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666));
	double tmp;
	if (n <= -3.1e-146) {
		tmp = (n * 100.0) + ((n * 100.0) * t_0);
	} else if (n <= 1.65e-196) {
		tmp = 100.0 * (0.0 / (i / n));
	} else {
		tmp = n * (100.0 + (100.0 * t_0));
	}
	return tmp;
}
def code(i, n):
	t_0 = i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666))
	tmp = 0
	if n <= -3.1e-146:
		tmp = (n * 100.0) + ((n * 100.0) * t_0)
	elif n <= 1.65e-196:
		tmp = 100.0 * (0.0 / (i / n))
	else:
		tmp = n * (100.0 + (100.0 * t_0))
	return tmp
function code(i, n)
	t_0 = Float64(i * Float64(Float64(0.5 + Float64(-0.5 / n)) + Float64(i * 0.16666666666666666)))
	tmp = 0.0
	if (n <= -3.1e-146)
		tmp = Float64(Float64(n * 100.0) + Float64(Float64(n * 100.0) * t_0));
	elseif (n <= 1.65e-196)
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	else
		tmp = Float64(n * Float64(100.0 + Float64(100.0 * t_0)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	t_0 = i * ((0.5 + (-0.5 / n)) + (i * 0.16666666666666666));
	tmp = 0.0;
	if (n <= -3.1e-146)
		tmp = (n * 100.0) + ((n * 100.0) * t_0);
	elseif (n <= 1.65e-196)
		tmp = 100.0 * (0.0 / (i / n));
	else
		tmp = n * (100.0 + (100.0 * t_0));
	end
	tmp_2 = tmp;
end
code[i_, n_] := Block[{t$95$0 = N[(i * N[(N[(0.5 + N[(-0.5 / n), $MachinePrecision]), $MachinePrecision] + N[(i * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[n, -3.1e-146], N[(N[(n * 100.0), $MachinePrecision] + N[(N[(n * 100.0), $MachinePrecision] * t$95$0), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 1.65e-196], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(n * N[(100.0 + N[(100.0 * t$95$0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\\
\mathbf{if}\;n \leq -3.1 \cdot 10^{-146}:\\
\;\;\;\;n \cdot 100 + \left(n \cdot 100\right) \cdot t_0\\

\mathbf{elif}\;n \leq 1.65 \cdot 10^{-196}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\

\mathbf{else}:\\
\;\;\;\;n \cdot \left(100 + 100 \cdot t_0\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if n < -3.0999999999999998e-146

    1. Initial program 23.2%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/22.6%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*22.6%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative22.6%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/22.6%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg22.6%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in22.6%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def22.6%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval22.6%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval22.6%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified22.6%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 64.6%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out64.6%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/64.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval64.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow264.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+64.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/64.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval64.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow264.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/64.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval64.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified64.6%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 64.6%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative64.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow264.6%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified64.6%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Step-by-step derivation
      1. +-commutative64.6%

        \[\leadsto n \cdot \color{blue}{\left(100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot 0.16666666666666666\right) + 100\right)} \]
      2. distribute-lft-in64.6%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot 0.16666666666666666\right)\right) + n \cdot 100} \]
      3. associate-*r*64.6%

        \[\leadsto \color{blue}{\left(n \cdot 100\right) \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot 0.16666666666666666\right)} + n \cdot 100 \]
      4. associate-*l*64.6%

        \[\leadsto \left(n \cdot 100\right) \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{i \cdot \left(i \cdot 0.16666666666666666\right)}\right) + n \cdot 100 \]
      5. distribute-lft-out64.6%

        \[\leadsto \left(n \cdot 100\right) \cdot \color{blue}{\left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)} + n \cdot 100 \]
      6. sub-neg64.6%

        \[\leadsto \left(n \cdot 100\right) \cdot \left(i \cdot \left(\color{blue}{\left(0.5 + \left(-\frac{0.5}{n}\right)\right)} + i \cdot 0.16666666666666666\right)\right) + n \cdot 100 \]
      7. distribute-neg-frac64.6%

        \[\leadsto \left(n \cdot 100\right) \cdot \left(i \cdot \left(\left(0.5 + \color{blue}{\frac{-0.5}{n}}\right) + i \cdot 0.16666666666666666\right)\right) + n \cdot 100 \]
      8. metadata-eval64.6%

        \[\leadsto \left(n \cdot 100\right) \cdot \left(i \cdot \left(\left(0.5 + \frac{\color{blue}{-0.5}}{n}\right) + i \cdot 0.16666666666666666\right)\right) + n \cdot 100 \]
    11. Applied egg-rr64.6%

      \[\leadsto \color{blue}{\left(n \cdot 100\right) \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right) + n \cdot 100} \]

    if -3.0999999999999998e-146 < n < 1.64999999999999999e-196

    1. Initial program 65.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 73.3%

      \[\leadsto 100 \cdot \frac{\color{blue}{1} - 1}{\frac{i}{n}} \]

    if 1.64999999999999999e-196 < n

    1. Initial program 16.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/17.1%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*17.1%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative17.1%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/17.1%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg17.1%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in17.1%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def17.1%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval17.1%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval17.1%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified17.1%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 58.9%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out58.9%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow258.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow258.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval58.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified58.9%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 65.1%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow265.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified65.1%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Step-by-step derivation
      1. associate-*l*65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{i \cdot \left(i \cdot 0.16666666666666666\right)}\right)\right) \]
      2. distribute-lft-out65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \color{blue}{\left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)}\right) \]
      3. sub-neg65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\color{blue}{\left(0.5 + \left(-\frac{0.5}{n}\right)\right)} + i \cdot 0.16666666666666666\right)\right)\right) \]
      4. distribute-neg-frac65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \color{blue}{\frac{-0.5}{n}}\right) + i \cdot 0.16666666666666666\right)\right)\right) \]
      5. metadata-eval65.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{\color{blue}{-0.5}}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right) \]
    11. Applied egg-rr65.1%

      \[\leadsto n \cdot \left(100 + 100 \cdot \color{blue}{\left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)}\right) \]
  3. Recombined 3 regimes into one program.
  4. Final simplification66.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -3.1 \cdot 10^{-146}:\\ \;\;\;\;n \cdot 100 + \left(n \cdot 100\right) \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\\ \mathbf{elif}\;n \leq 1.65 \cdot 10^{-196}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + 100 \cdot \left(i \cdot \left(\left(0.5 + \frac{-0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\ \end{array} \]

Alternative 11: 64.4% accurate, 8.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -1.5 \cdot 10^{-151} \lor \neg \left(n \leq 3.8 \cdot 10^{-193}\right):\\ \;\;\;\;n \cdot \left(100 + \left(i \cdot i\right) \cdot 16.666666666666668\right)\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= n -1.5e-151) (not (<= n 3.8e-193)))
   (* n (+ 100.0 (* (* i i) 16.666666666666668)))
   (* 100.0 (/ 0.0 (/ i n)))))
double code(double i, double n) {
	double tmp;
	if ((n <= -1.5e-151) || !(n <= 3.8e-193)) {
		tmp = n * (100.0 + ((i * i) * 16.666666666666668));
	} else {
		tmp = 100.0 * (0.0 / (i / n));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if ((n <= (-1.5d-151)) .or. (.not. (n <= 3.8d-193))) then
        tmp = n * (100.0d0 + ((i * i) * 16.666666666666668d0))
    else
        tmp = 100.0d0 * (0.0d0 / (i / n))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if ((n <= -1.5e-151) || !(n <= 3.8e-193)) {
		tmp = n * (100.0 + ((i * i) * 16.666666666666668));
	} else {
		tmp = 100.0 * (0.0 / (i / n));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (n <= -1.5e-151) or not (n <= 3.8e-193):
		tmp = n * (100.0 + ((i * i) * 16.666666666666668))
	else:
		tmp = 100.0 * (0.0 / (i / n))
	return tmp
function code(i, n)
	tmp = 0.0
	if ((n <= -1.5e-151) || !(n <= 3.8e-193))
		tmp = Float64(n * Float64(100.0 + Float64(Float64(i * i) * 16.666666666666668)));
	else
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if ((n <= -1.5e-151) || ~((n <= 3.8e-193)))
		tmp = n * (100.0 + ((i * i) * 16.666666666666668));
	else
		tmp = 100.0 * (0.0 / (i / n));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[Or[LessEqual[n, -1.5e-151], N[Not[LessEqual[n, 3.8e-193]], $MachinePrecision]], N[(n * N[(100.0 + N[(N[(i * i), $MachinePrecision] * 16.666666666666668), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -1.5 \cdot 10^{-151} \lor \neg \left(n \leq 3.8 \cdot 10^{-193}\right):\\
\;\;\;\;n \cdot \left(100 + \left(i \cdot i\right) \cdot 16.666666666666668\right)\\

\mathbf{else}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if n < -1.5e-151 or 3.80000000000000004e-193 < n

    1. Initial program 19.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/19.6%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*19.6%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative19.6%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/19.6%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg19.6%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in19.6%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def19.6%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval19.6%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval19.6%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified19.6%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 61.5%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out61.5%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow261.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow261.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval61.5%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified61.5%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 64.9%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative64.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow264.9%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified64.9%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Taylor expanded in i around inf 64.0%

      \[\leadsto n \cdot \left(100 + \color{blue}{16.666666666666668 \cdot {i}^{2}}\right) \]
    11. Step-by-step derivation
      1. *-commutative64.0%

        \[\leadsto n \cdot \left(100 + \color{blue}{{i}^{2} \cdot 16.666666666666668}\right) \]
      2. unpow264.0%

        \[\leadsto n \cdot \left(100 + \color{blue}{\left(i \cdot i\right)} \cdot 16.666666666666668\right) \]
    12. Simplified64.0%

      \[\leadsto n \cdot \left(100 + \color{blue}{\left(i \cdot i\right) \cdot 16.666666666666668}\right) \]

    if -1.5e-151 < n < 3.80000000000000004e-193

    1. Initial program 65.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 73.3%

      \[\leadsto 100 \cdot \frac{\color{blue}{1} - 1}{\frac{i}{n}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification65.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -1.5 \cdot 10^{-151} \lor \neg \left(n \leq 3.8 \cdot 10^{-193}\right):\\ \;\;\;\;n \cdot \left(100 + \left(i \cdot i\right) \cdot 16.666666666666668\right)\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \end{array} \]

Alternative 12: 62.6% accurate, 10.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -1.35 \cdot 10^{-151} \lor \neg \left(n \leq 4.2 \cdot 10^{-195}\right):\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= n -1.35e-151) (not (<= n 4.2e-195)))
   (* n (+ 100.0 (* i 50.0)))
   (* 100.0 (/ 0.0 (/ i n)))))
double code(double i, double n) {
	double tmp;
	if ((n <= -1.35e-151) || !(n <= 4.2e-195)) {
		tmp = n * (100.0 + (i * 50.0));
	} else {
		tmp = 100.0 * (0.0 / (i / n));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if ((n <= (-1.35d-151)) .or. (.not. (n <= 4.2d-195))) then
        tmp = n * (100.0d0 + (i * 50.0d0))
    else
        tmp = 100.0d0 * (0.0d0 / (i / n))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if ((n <= -1.35e-151) || !(n <= 4.2e-195)) {
		tmp = n * (100.0 + (i * 50.0));
	} else {
		tmp = 100.0 * (0.0 / (i / n));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (n <= -1.35e-151) or not (n <= 4.2e-195):
		tmp = n * (100.0 + (i * 50.0))
	else:
		tmp = 100.0 * (0.0 / (i / n))
	return tmp
function code(i, n)
	tmp = 0.0
	if ((n <= -1.35e-151) || !(n <= 4.2e-195))
		tmp = Float64(n * Float64(100.0 + Float64(i * 50.0)));
	else
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if ((n <= -1.35e-151) || ~((n <= 4.2e-195)))
		tmp = n * (100.0 + (i * 50.0));
	else
		tmp = 100.0 * (0.0 / (i / n));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[Or[LessEqual[n, -1.35e-151], N[Not[LessEqual[n, 4.2e-195]], $MachinePrecision]], N[(n * N[(100.0 + N[(i * 50.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -1.35 \cdot 10^{-151} \lor \neg \left(n \leq 4.2 \cdot 10^{-195}\right):\\
\;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\

\mathbf{else}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if n < -1.35000000000000004e-151 or 4.2e-195 < n

    1. Initial program 19.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/19.6%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*19.6%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative19.6%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/19.6%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg19.6%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in19.6%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def19.6%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval19.6%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval19.6%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified19.6%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 62.2%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)} \]
    5. Step-by-step derivation
      1. associate-*r*62.2%

        \[\leadsto n \cdot \left(100 + \color{blue}{\left(100 \cdot i\right) \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)}\right) \]
      2. *-commutative62.2%

        \[\leadsto n \cdot \left(100 + \color{blue}{\left(i \cdot 100\right)} \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) \]
      3. associate-*r/62.2%

        \[\leadsto n \cdot \left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) \]
      4. metadata-eval62.2%

        \[\leadsto n \cdot \left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right) \]
    6. Simplified62.2%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \frac{0.5}{n}\right)\right)} \]
    7. Taylor expanded in n around inf 62.1%

      \[\leadsto \color{blue}{n \cdot \left(100 + 50 \cdot i\right)} \]
    8. Step-by-step derivation
      1. *-commutative62.1%

        \[\leadsto n \cdot \left(100 + \color{blue}{i \cdot 50}\right) \]
    9. Simplified62.1%

      \[\leadsto \color{blue}{n \cdot \left(100 + i \cdot 50\right)} \]

    if -1.35000000000000004e-151 < n < 4.2e-195

    1. Initial program 65.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 73.3%

      \[\leadsto 100 \cdot \frac{\color{blue}{1} - 1}{\frac{i}{n}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification64.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -1.35 \cdot 10^{-151} \lor \neg \left(n \leq 4.2 \cdot 10^{-195}\right):\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \end{array} \]

Alternative 13: 59.6% accurate, 10.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq -1 \cdot 10^{+122}:\\ \;\;\;\;100 \cdot \left(i \cdot \frac{n}{i}\right)\\ \mathbf{elif}\;i \leq 7 \cdot 10^{+39}:\\ \;\;\;\;n \cdot 100\\ \mathbf{else}:\\ \;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= i -1e+122)
   (* 100.0 (* i (/ n i)))
   (if (<= i 7e+39) (* n 100.0) (* 16.666666666666668 (* n (* i i))))))
double code(double i, double n) {
	double tmp;
	if (i <= -1e+122) {
		tmp = 100.0 * (i * (n / i));
	} else if (i <= 7e+39) {
		tmp = n * 100.0;
	} else {
		tmp = 16.666666666666668 * (n * (i * i));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if (i <= (-1d+122)) then
        tmp = 100.0d0 * (i * (n / i))
    else if (i <= 7d+39) then
        tmp = n * 100.0d0
    else
        tmp = 16.666666666666668d0 * (n * (i * i))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (i <= -1e+122) {
		tmp = 100.0 * (i * (n / i));
	} else if (i <= 7e+39) {
		tmp = n * 100.0;
	} else {
		tmp = 16.666666666666668 * (n * (i * i));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if i <= -1e+122:
		tmp = 100.0 * (i * (n / i))
	elif i <= 7e+39:
		tmp = n * 100.0
	else:
		tmp = 16.666666666666668 * (n * (i * i))
	return tmp
function code(i, n)
	tmp = 0.0
	if (i <= -1e+122)
		tmp = Float64(100.0 * Float64(i * Float64(n / i)));
	elseif (i <= 7e+39)
		tmp = Float64(n * 100.0);
	else
		tmp = Float64(16.666666666666668 * Float64(n * Float64(i * i)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (i <= -1e+122)
		tmp = 100.0 * (i * (n / i));
	elseif (i <= 7e+39)
		tmp = n * 100.0;
	else
		tmp = 16.666666666666668 * (n * (i * i));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[i, -1e+122], N[(100.0 * N[(i * N[(n / i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[i, 7e+39], N[(n * 100.0), $MachinePrecision], N[(16.666666666666668 * N[(n * N[(i * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq -1 \cdot 10^{+122}:\\
\;\;\;\;100 \cdot \left(i \cdot \frac{n}{i}\right)\\

\mathbf{elif}\;i \leq 7 \cdot 10^{+39}:\\
\;\;\;\;n \cdot 100\\

\mathbf{else}:\\
\;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if i < -1.00000000000000001e122

    1. Initial program 73.5%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 38.9%

      \[\leadsto 100 \cdot \frac{\color{blue}{i}}{\frac{i}{n}} \]
    3. Step-by-step derivation
      1. div-inv38.9%

        \[\leadsto 100 \cdot \color{blue}{\left(i \cdot \frac{1}{\frac{i}{n}}\right)} \]
      2. clear-num34.5%

        \[\leadsto 100 \cdot \left(i \cdot \color{blue}{\frac{n}{i}}\right) \]
    4. Applied egg-rr34.5%

      \[\leadsto 100 \cdot \color{blue}{\left(i \cdot \frac{n}{i}\right)} \]

    if -1.00000000000000001e122 < i < 7.0000000000000003e39

    1. Initial program 20.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 64.9%

      \[\leadsto \color{blue}{100 \cdot n} \]
    3. Step-by-step derivation
      1. *-commutative64.9%

        \[\leadsto \color{blue}{n \cdot 100} \]
    4. Simplified64.9%

      \[\leadsto \color{blue}{n \cdot 100} \]

    if 7.0000000000000003e39 < i

    1. Initial program 45.4%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/45.6%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*45.6%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative45.6%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/45.5%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg45.5%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in45.5%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def45.5%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval45.5%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval45.5%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified45.5%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 37.7%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out37.7%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow237.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow237.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified37.7%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 38.0%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative38.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow238.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified38.0%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Taylor expanded in i around inf 38.3%

      \[\leadsto \color{blue}{16.666666666666668 \cdot \left(n \cdot {i}^{2}\right)} \]
    11. Step-by-step derivation
      1. unpow238.3%

        \[\leadsto 16.666666666666668 \cdot \left(n \cdot \color{blue}{\left(i \cdot i\right)}\right) \]
    12. Simplified38.3%

      \[\leadsto \color{blue}{16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification58.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq -1 \cdot 10^{+122}:\\ \;\;\;\;100 \cdot \left(i \cdot \frac{n}{i}\right)\\ \mathbf{elif}\;i \leq 7 \cdot 10^{+39}:\\ \;\;\;\;n \cdot 100\\ \mathbf{else}:\\ \;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\ \end{array} \]

Alternative 14: 59.8% accurate, 10.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq -1 \cdot 10^{+119}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;i \leq 7 \cdot 10^{+39}:\\ \;\;\;\;n \cdot 100\\ \mathbf{else}:\\ \;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= i -1e+119)
   (* 100.0 (/ i (/ i n)))
   (if (<= i 7e+39) (* n 100.0) (* 16.666666666666668 (* n (* i i))))))
double code(double i, double n) {
	double tmp;
	if (i <= -1e+119) {
		tmp = 100.0 * (i / (i / n));
	} else if (i <= 7e+39) {
		tmp = n * 100.0;
	} else {
		tmp = 16.666666666666668 * (n * (i * i));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if (i <= (-1d+119)) then
        tmp = 100.0d0 * (i / (i / n))
    else if (i <= 7d+39) then
        tmp = n * 100.0d0
    else
        tmp = 16.666666666666668d0 * (n * (i * i))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (i <= -1e+119) {
		tmp = 100.0 * (i / (i / n));
	} else if (i <= 7e+39) {
		tmp = n * 100.0;
	} else {
		tmp = 16.666666666666668 * (n * (i * i));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if i <= -1e+119:
		tmp = 100.0 * (i / (i / n))
	elif i <= 7e+39:
		tmp = n * 100.0
	else:
		tmp = 16.666666666666668 * (n * (i * i))
	return tmp
function code(i, n)
	tmp = 0.0
	if (i <= -1e+119)
		tmp = Float64(100.0 * Float64(i / Float64(i / n)));
	elseif (i <= 7e+39)
		tmp = Float64(n * 100.0);
	else
		tmp = Float64(16.666666666666668 * Float64(n * Float64(i * i)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (i <= -1e+119)
		tmp = 100.0 * (i / (i / n));
	elseif (i <= 7e+39)
		tmp = n * 100.0;
	else
		tmp = 16.666666666666668 * (n * (i * i));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[i, -1e+119], N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[i, 7e+39], N[(n * 100.0), $MachinePrecision], N[(16.666666666666668 * N[(n * N[(i * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq -1 \cdot 10^{+119}:\\
\;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\

\mathbf{elif}\;i \leq 7 \cdot 10^{+39}:\\
\;\;\;\;n \cdot 100\\

\mathbf{else}:\\
\;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if i < -9.99999999999999944e118

    1. Initial program 71.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 35.8%

      \[\leadsto 100 \cdot \frac{\color{blue}{i}}{\frac{i}{n}} \]

    if -9.99999999999999944e118 < i < 7.0000000000000003e39

    1. Initial program 19.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 65.6%

      \[\leadsto \color{blue}{100 \cdot n} \]
    3. Step-by-step derivation
      1. *-commutative65.6%

        \[\leadsto \color{blue}{n \cdot 100} \]
    4. Simplified65.6%

      \[\leadsto \color{blue}{n \cdot 100} \]

    if 7.0000000000000003e39 < i

    1. Initial program 45.4%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/45.6%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*45.6%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative45.6%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/45.5%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg45.5%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in45.5%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def45.5%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval45.5%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval45.5%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified45.5%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 37.7%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out37.7%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow237.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow237.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified37.7%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 38.0%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative38.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow238.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified38.0%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Taylor expanded in i around inf 38.3%

      \[\leadsto \color{blue}{16.666666666666668 \cdot \left(n \cdot {i}^{2}\right)} \]
    11. Step-by-step derivation
      1. unpow238.3%

        \[\leadsto 16.666666666666668 \cdot \left(n \cdot \color{blue}{\left(i \cdot i\right)}\right) \]
    12. Simplified38.3%

      \[\leadsto \color{blue}{16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification58.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq -1 \cdot 10^{+119}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;i \leq 7 \cdot 10^{+39}:\\ \;\;\;\;n \cdot 100\\ \mathbf{else}:\\ \;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\ \end{array} \]

Alternative 15: 60.3% accurate, 10.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq -1.5:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;i \leq 3.9 \cdot 10^{+87}:\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \mathbf{else}:\\ \;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= i -1.5)
   (* 100.0 (/ i (/ i n)))
   (if (<= i 3.9e+87)
     (* n (+ 100.0 (* i 50.0)))
     (* 16.666666666666668 (* n (* i i))))))
double code(double i, double n) {
	double tmp;
	if (i <= -1.5) {
		tmp = 100.0 * (i / (i / n));
	} else if (i <= 3.9e+87) {
		tmp = n * (100.0 + (i * 50.0));
	} else {
		tmp = 16.666666666666668 * (n * (i * i));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if (i <= (-1.5d0)) then
        tmp = 100.0d0 * (i / (i / n))
    else if (i <= 3.9d+87) then
        tmp = n * (100.0d0 + (i * 50.0d0))
    else
        tmp = 16.666666666666668d0 * (n * (i * i))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (i <= -1.5) {
		tmp = 100.0 * (i / (i / n));
	} else if (i <= 3.9e+87) {
		tmp = n * (100.0 + (i * 50.0));
	} else {
		tmp = 16.666666666666668 * (n * (i * i));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if i <= -1.5:
		tmp = 100.0 * (i / (i / n))
	elif i <= 3.9e+87:
		tmp = n * (100.0 + (i * 50.0))
	else:
		tmp = 16.666666666666668 * (n * (i * i))
	return tmp
function code(i, n)
	tmp = 0.0
	if (i <= -1.5)
		tmp = Float64(100.0 * Float64(i / Float64(i / n)));
	elseif (i <= 3.9e+87)
		tmp = Float64(n * Float64(100.0 + Float64(i * 50.0)));
	else
		tmp = Float64(16.666666666666668 * Float64(n * Float64(i * i)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (i <= -1.5)
		tmp = 100.0 * (i / (i / n));
	elseif (i <= 3.9e+87)
		tmp = n * (100.0 + (i * 50.0));
	else
		tmp = 16.666666666666668 * (n * (i * i));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[i, -1.5], N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[i, 3.9e+87], N[(n * N[(100.0 + N[(i * 50.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(16.666666666666668 * N[(n * N[(i * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq -1.5:\\
\;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\

\mathbf{elif}\;i \leq 3.9 \cdot 10^{+87}:\\
\;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\

\mathbf{else}:\\
\;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if i < -1.5

    1. Initial program 60.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 19.0%

      \[\leadsto 100 \cdot \frac{\color{blue}{i}}{\frac{i}{n}} \]

    if -1.5 < i < 3.9000000000000002e87

    1. Initial program 14.4%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/14.8%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*14.8%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative14.8%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/14.8%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg14.8%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in14.8%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def14.8%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval14.8%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval14.8%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified14.8%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 74.6%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)} \]
    5. Step-by-step derivation
      1. associate-*r*74.6%

        \[\leadsto n \cdot \left(100 + \color{blue}{\left(100 \cdot i\right) \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)}\right) \]
      2. *-commutative74.6%

        \[\leadsto n \cdot \left(100 + \color{blue}{\left(i \cdot 100\right)} \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) \]
      3. associate-*r/74.6%

        \[\leadsto n \cdot \left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) \]
      4. metadata-eval74.6%

        \[\leadsto n \cdot \left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right) \]
    6. Simplified74.6%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \frac{0.5}{n}\right)\right)} \]
    7. Taylor expanded in n around inf 74.8%

      \[\leadsto \color{blue}{n \cdot \left(100 + 50 \cdot i\right)} \]
    8. Step-by-step derivation
      1. *-commutative74.8%

        \[\leadsto n \cdot \left(100 + \color{blue}{i \cdot 50}\right) \]
    9. Simplified74.8%

      \[\leadsto \color{blue}{n \cdot \left(100 + i \cdot 50\right)} \]

    if 3.9000000000000002e87 < i

    1. Initial program 50.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/50.2%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*50.2%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative50.2%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/50.2%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg50.2%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in50.2%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def50.2%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval50.2%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval50.2%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified50.2%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 44.0%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out44.0%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/44.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval44.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow244.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+44.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/44.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval44.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow244.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/44.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval44.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified44.0%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 44.1%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative44.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow244.1%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified44.1%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Taylor expanded in i around inf 44.3%

      \[\leadsto \color{blue}{16.666666666666668 \cdot \left(n \cdot {i}^{2}\right)} \]
    11. Step-by-step derivation
      1. unpow244.3%

        \[\leadsto 16.666666666666668 \cdot \left(n \cdot \color{blue}{\left(i \cdot i\right)}\right) \]
    12. Simplified44.3%

      \[\leadsto \color{blue}{16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification59.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq -1.5:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;i \leq 3.9 \cdot 10^{+87}:\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \mathbf{else}:\\ \;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\ \end{array} \]

Alternative 16: 56.4% accurate, 12.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq 7 \cdot 10^{+39}:\\ \;\;\;\;n \cdot 100\\ \mathbf{else}:\\ \;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= i 7e+39) (* n 100.0) (* 16.666666666666668 (* n (* i i)))))
double code(double i, double n) {
	double tmp;
	if (i <= 7e+39) {
		tmp = n * 100.0;
	} else {
		tmp = 16.666666666666668 * (n * (i * i));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if (i <= 7d+39) then
        tmp = n * 100.0d0
    else
        tmp = 16.666666666666668d0 * (n * (i * i))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (i <= 7e+39) {
		tmp = n * 100.0;
	} else {
		tmp = 16.666666666666668 * (n * (i * i));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if i <= 7e+39:
		tmp = n * 100.0
	else:
		tmp = 16.666666666666668 * (n * (i * i))
	return tmp
function code(i, n)
	tmp = 0.0
	if (i <= 7e+39)
		tmp = Float64(n * 100.0);
	else
		tmp = Float64(16.666666666666668 * Float64(n * Float64(i * i)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (i <= 7e+39)
		tmp = n * 100.0;
	else
		tmp = 16.666666666666668 * (n * (i * i));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[i, 7e+39], N[(n * 100.0), $MachinePrecision], N[(16.666666666666668 * N[(n * N[(i * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq 7 \cdot 10^{+39}:\\
\;\;\;\;n \cdot 100\\

\mathbf{else}:\\
\;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if i < 7.0000000000000003e39

    1. Initial program 25.4%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 58.8%

      \[\leadsto \color{blue}{100 \cdot n} \]
    3. Step-by-step derivation
      1. *-commutative58.8%

        \[\leadsto \color{blue}{n \cdot 100} \]
    4. Simplified58.8%

      \[\leadsto \color{blue}{n \cdot 100} \]

    if 7.0000000000000003e39 < i

    1. Initial program 45.4%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/45.6%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. associate-*r*45.6%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
      3. *-commutative45.6%

        \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
      4. associate-*r/45.5%

        \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
      5. sub-neg45.5%

        \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
      6. distribute-lft-in45.5%

        \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
      7. fma-def45.5%

        \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
      8. metadata-eval45.5%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
      9. metadata-eval45.5%

        \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
    3. Simplified45.5%

      \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
    4. Taylor expanded in i around 0 37.7%

      \[\leadsto n \cdot \color{blue}{\left(100 + \left(100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) + 100 \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    5. Step-by-step derivation
      1. distribute-lft-out37.7%

        \[\leadsto n \cdot \left(100 + \color{blue}{100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right) + {i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. unpow237.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. associate--l+37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)}\right)\right) \]
      6. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      7. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      8. unpow237.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right) \]
      9. associate-*r/37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right)\right) \]
      10. metadata-eval37.7%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right)\right)\right) \]
    6. Simplified37.7%

      \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right)\right)\right)} \]
    7. Taylor expanded in n around inf 38.0%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{0.16666666666666666 \cdot {i}^{2}}\right)\right) \]
    8. Step-by-step derivation
      1. *-commutative38.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{{i}^{2} \cdot 0.16666666666666666}\right)\right) \]
      2. unpow238.0%

        \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right)} \cdot 0.16666666666666666\right)\right) \]
    9. Simplified38.0%

      \[\leadsto n \cdot \left(100 + 100 \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{\left(i \cdot i\right) \cdot 0.16666666666666666}\right)\right) \]
    10. Taylor expanded in i around inf 38.3%

      \[\leadsto \color{blue}{16.666666666666668 \cdot \left(n \cdot {i}^{2}\right)} \]
    11. Step-by-step derivation
      1. unpow238.3%

        \[\leadsto 16.666666666666668 \cdot \left(n \cdot \color{blue}{\left(i \cdot i\right)}\right) \]
    12. Simplified38.3%

      \[\leadsto \color{blue}{16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification55.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq 7 \cdot 10^{+39}:\\ \;\;\;\;n \cdot 100\\ \mathbf{else}:\\ \;\;\;\;16.666666666666668 \cdot \left(n \cdot \left(i \cdot i\right)\right)\\ \end{array} \]

Alternative 17: 2.8% accurate, 38.0× speedup?

\[\begin{array}{l} \\ i \cdot -50 \end{array} \]
(FPCore (i n) :precision binary64 (* i -50.0))
double code(double i, double n) {
	return i * -50.0;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    code = i * (-50.0d0)
end function
public static double code(double i, double n) {
	return i * -50.0;
}
def code(i, n):
	return i * -50.0
function code(i, n)
	return Float64(i * -50.0)
end
function tmp = code(i, n)
	tmp = i * -50.0;
end
code[i_, n_] := N[(i * -50.0), $MachinePrecision]
\begin{array}{l}

\\
i \cdot -50
\end{array}
Derivation
  1. Initial program 28.4%

    \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
  2. Step-by-step derivation
    1. associate-/r/28.3%

      \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
    2. associate-*r*28.4%

      \[\leadsto \color{blue}{\left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right) \cdot n} \]
    3. *-commutative28.4%

      \[\leadsto \color{blue}{n \cdot \left(100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i}\right)} \]
    4. associate-*r/28.4%

      \[\leadsto n \cdot \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i}} \]
    5. sub-neg28.4%

      \[\leadsto n \cdot \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{i} \]
    6. distribute-lft-in28.4%

      \[\leadsto n \cdot \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{i} \]
    7. fma-def28.4%

      \[\leadsto n \cdot \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \left(-1\right)\right)}}{i} \]
    8. metadata-eval28.4%

      \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, 100 \cdot \color{blue}{-1}\right)}{i} \]
    9. metadata-eval28.4%

      \[\leadsto n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, \color{blue}{-100}\right)}{i} \]
  3. Simplified28.4%

    \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
  4. Taylor expanded in i around 0 53.6%

    \[\leadsto n \cdot \color{blue}{\left(100 + 100 \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)} \]
  5. Step-by-step derivation
    1. associate-*r*53.6%

      \[\leadsto n \cdot \left(100 + \color{blue}{\left(100 \cdot i\right) \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)}\right) \]
    2. *-commutative53.6%

      \[\leadsto n \cdot \left(100 + \color{blue}{\left(i \cdot 100\right)} \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) \]
    3. associate-*r/53.6%

      \[\leadsto n \cdot \left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) \]
    4. metadata-eval53.6%

      \[\leadsto n \cdot \left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right) \]
  6. Simplified53.6%

    \[\leadsto n \cdot \color{blue}{\left(100 + \left(i \cdot 100\right) \cdot \left(0.5 - \frac{0.5}{n}\right)\right)} \]
  7. Taylor expanded in n around 0 3.1%

    \[\leadsto \color{blue}{-50 \cdot i} \]
  8. Step-by-step derivation
    1. *-commutative3.1%

      \[\leadsto \color{blue}{i \cdot -50} \]
  9. Simplified3.1%

    \[\leadsto \color{blue}{i \cdot -50} \]
  10. Final simplification3.1%

    \[\leadsto i \cdot -50 \]

Alternative 18: 49.7% accurate, 38.0× speedup?

\[\begin{array}{l} \\ n \cdot 100 \end{array} \]
(FPCore (i n) :precision binary64 (* n 100.0))
double code(double i, double n) {
	return n * 100.0;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    code = n * 100.0d0
end function
public static double code(double i, double n) {
	return n * 100.0;
}
def code(i, n):
	return n * 100.0
function code(i, n)
	return Float64(n * 100.0)
end
function tmp = code(i, n)
	tmp = n * 100.0;
end
code[i_, n_] := N[(n * 100.0), $MachinePrecision]
\begin{array}{l}

\\
n \cdot 100
\end{array}
Derivation
  1. Initial program 28.4%

    \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
  2. Taylor expanded in i around 0 50.9%

    \[\leadsto \color{blue}{100 \cdot n} \]
  3. Step-by-step derivation
    1. *-commutative50.9%

      \[\leadsto \color{blue}{n \cdot 100} \]
  4. Simplified50.9%

    \[\leadsto \color{blue}{n \cdot 100} \]
  5. Final simplification50.9%

    \[\leadsto n \cdot 100 \]

Developer target: 32.7% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := 1 + \frac{i}{n}\\ 100 \cdot \frac{e^{n \cdot \begin{array}{l} \mathbf{if}\;t_0 = 1:\\ \;\;\;\;\frac{i}{n}\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{i}{n} \cdot \log t_0}{\left(\frac{i}{n} + 1\right) - 1}\\ \end{array}} - 1}{\frac{i}{n}} \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (+ 1.0 (/ i n))))
   (*
    100.0
    (/
     (-
      (exp
       (*
        n
        (if (== t_0 1.0)
          (/ i n)
          (/ (* (/ i n) (log t_0)) (- (+ (/ i n) 1.0) 1.0)))))
      1.0)
     (/ i n)))))
double code(double i, double n) {
	double t_0 = 1.0 + (i / n);
	double tmp;
	if (t_0 == 1.0) {
		tmp = i / n;
	} else {
		tmp = ((i / n) * log(t_0)) / (((i / n) + 1.0) - 1.0);
	}
	return 100.0 * ((exp((n * tmp)) - 1.0) / (i / n));
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: t_0
    real(8) :: tmp
    t_0 = 1.0d0 + (i / n)
    if (t_0 == 1.0d0) then
        tmp = i / n
    else
        tmp = ((i / n) * log(t_0)) / (((i / n) + 1.0d0) - 1.0d0)
    end if
    code = 100.0d0 * ((exp((n * tmp)) - 1.0d0) / (i / n))
end function
public static double code(double i, double n) {
	double t_0 = 1.0 + (i / n);
	double tmp;
	if (t_0 == 1.0) {
		tmp = i / n;
	} else {
		tmp = ((i / n) * Math.log(t_0)) / (((i / n) + 1.0) - 1.0);
	}
	return 100.0 * ((Math.exp((n * tmp)) - 1.0) / (i / n));
}
def code(i, n):
	t_0 = 1.0 + (i / n)
	tmp = 0
	if t_0 == 1.0:
		tmp = i / n
	else:
		tmp = ((i / n) * math.log(t_0)) / (((i / n) + 1.0) - 1.0)
	return 100.0 * ((math.exp((n * tmp)) - 1.0) / (i / n))
function code(i, n)
	t_0 = Float64(1.0 + Float64(i / n))
	tmp = 0.0
	if (t_0 == 1.0)
		tmp = Float64(i / n);
	else
		tmp = Float64(Float64(Float64(i / n) * log(t_0)) / Float64(Float64(Float64(i / n) + 1.0) - 1.0));
	end
	return Float64(100.0 * Float64(Float64(exp(Float64(n * tmp)) - 1.0) / Float64(i / n)))
end
function tmp_2 = code(i, n)
	t_0 = 1.0 + (i / n);
	tmp = 0.0;
	if (t_0 == 1.0)
		tmp = i / n;
	else
		tmp = ((i / n) * log(t_0)) / (((i / n) + 1.0) - 1.0);
	end
	tmp_2 = 100.0 * ((exp((n * tmp)) - 1.0) / (i / n));
end
code[i_, n_] := Block[{t$95$0 = N[(1.0 + N[(i / n), $MachinePrecision]), $MachinePrecision]}, N[(100.0 * N[(N[(N[Exp[N[(n * If[Equal[t$95$0, 1.0], N[(i / n), $MachinePrecision], N[(N[(N[(i / n), $MachinePrecision] * N[Log[t$95$0], $MachinePrecision]), $MachinePrecision] / N[(N[(N[(i / n), $MachinePrecision] + 1.0), $MachinePrecision] - 1.0), $MachinePrecision]), $MachinePrecision]]), $MachinePrecision]], $MachinePrecision] - 1.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := 1 + \frac{i}{n}\\
100 \cdot \frac{e^{n \cdot \begin{array}{l}
\mathbf{if}\;t_0 = 1:\\
\;\;\;\;\frac{i}{n}\\

\mathbf{else}:\\
\;\;\;\;\frac{\frac{i}{n} \cdot \log t_0}{\left(\frac{i}{n} + 1\right) - 1}\\


\end{array}} - 1}{\frac{i}{n}}
\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2023224 
(FPCore (i n)
  :name "Compound Interest"
  :precision binary64

  :herbie-target
  (* 100.0 (/ (- (exp (* n (if (== (+ 1.0 (/ i n)) 1.0) (/ i n) (/ (* (/ i n) (log (+ 1.0 (/ i n)))) (- (+ (/ i n) 1.0) 1.0))))) 1.0) (/ i n)))

  (* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))))