Compound Interest

Percentage Accurate: 27.9% → 97.6%
Time: 19.7s
Alternatives: 16
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 16 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: 27.9% 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: 97.6% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}}\\ t_1 := t_0 \cdot 100\\ \mathbf{if}\;t_0 \leq -200000000:\\ \;\;\;\;t_1\\ \mathbf{elif}\;t_0 \leq 0:\\ \;\;\;\;\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \frac{n \cdot 100}{i}\\ \mathbf{elif}\;t_0 \leq \infty:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (/ (+ (pow (+ 1.0 (/ i n)) n) -1.0) (/ i n))) (t_1 (* t_0 100.0)))
   (if (<= t_0 -200000000.0)
     t_1
     (if (<= t_0 0.0)
       (* (expm1 (* n (log1p (/ i n)))) (/ (* n 100.0) i))
       (if (<= t_0 INFINITY)
         t_1
         (/ n (+ 0.01 (* 0.01 (* i (+ (/ 0.5 n) -0.5))))))))))
double code(double i, double n) {
	double t_0 = (pow((1.0 + (i / n)), n) + -1.0) / (i / n);
	double t_1 = t_0 * 100.0;
	double tmp;
	if (t_0 <= -200000000.0) {
		tmp = t_1;
	} else if (t_0 <= 0.0) {
		tmp = expm1((n * log1p((i / n)))) * ((n * 100.0) / i);
	} else if (t_0 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	}
	return tmp;
}
public static double code(double i, double n) {
	double t_0 = (Math.pow((1.0 + (i / n)), n) + -1.0) / (i / n);
	double t_1 = t_0 * 100.0;
	double tmp;
	if (t_0 <= -200000000.0) {
		tmp = t_1;
	} else if (t_0 <= 0.0) {
		tmp = Math.expm1((n * Math.log1p((i / n)))) * ((n * 100.0) / i);
	} else if (t_0 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	}
	return tmp;
}
def code(i, n):
	t_0 = (math.pow((1.0 + (i / n)), n) + -1.0) / (i / n)
	t_1 = t_0 * 100.0
	tmp = 0
	if t_0 <= -200000000.0:
		tmp = t_1
	elif t_0 <= 0.0:
		tmp = math.expm1((n * math.log1p((i / n)))) * ((n * 100.0) / i)
	elif t_0 <= math.inf:
		tmp = t_1
	else:
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))))
	return tmp
function code(i, n)
	t_0 = Float64(Float64((Float64(1.0 + Float64(i / n)) ^ n) + -1.0) / Float64(i / n))
	t_1 = Float64(t_0 * 100.0)
	tmp = 0.0
	if (t_0 <= -200000000.0)
		tmp = t_1;
	elseif (t_0 <= 0.0)
		tmp = Float64(expm1(Float64(n * log1p(Float64(i / n)))) * Float64(Float64(n * 100.0) / i));
	elseif (t_0 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(n / Float64(0.01 + Float64(0.01 * Float64(i * Float64(Float64(0.5 / n) + -0.5)))));
	end
	return tmp
end
code[i_, n_] := Block[{t$95$0 = N[(N[(N[Power[N[(1.0 + N[(i / n), $MachinePrecision]), $MachinePrecision], n], $MachinePrecision] + -1.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(t$95$0 * 100.0), $MachinePrecision]}, If[LessEqual[t$95$0, -200000000.0], t$95$1, If[LessEqual[t$95$0, 0.0], N[(N[(Exp[N[(n * N[Log[1 + N[(i / n), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]] - 1), $MachinePrecision] * N[(N[(n * 100.0), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$0, Infinity], t$95$1, N[(n / N[(0.01 + N[(0.01 * N[(i * N[(N[(0.5 / n), $MachinePrecision] + -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}}\\
t_1 := t_0 \cdot 100\\
\mathbf{if}\;t_0 \leq -200000000:\\
\;\;\;\;t_1\\

\mathbf{elif}\;t_0 \leq 0:\\
\;\;\;\;\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \frac{n \cdot 100}{i}\\

\mathbf{elif}\;t_0 \leq \infty:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < -2e8 or -0.0 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < +inf.0

    1. Initial program 99.9%

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

    if -2e8 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < -0.0

    1. Initial program 30.2%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/30.2%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg30.2%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in30.2%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval30.2%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval30.2%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef30.2%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/29.9%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i} \cdot n} \]
      8. *-commutative29.9%

        \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
      9. expm1-log1p-u29.9%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}\right)\right)} \]
      10. expm1-udef26.5%

        \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}\right)} - 1} \]
    3. Applied egg-rr47.8%

      \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \left(\frac{n}{i} \cdot 100\right)\right)} - 1} \]
    4. Step-by-step derivation
      1. expm1-def79.9%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \left(\frac{n}{i} \cdot 100\right)\right)\right)} \]
      2. expm1-log1p99.4%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \left(\frac{n}{i} \cdot 100\right)} \]
      3. associate-*l/99.5%

        \[\leadsto \mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \color{blue}{\frac{n \cdot 100}{i}} \]
    5. Simplified99.5%

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

    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. Step-by-step derivation
      1. associate-*r/0.0%

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

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in0.0%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval0.0%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval0.0%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef0.0%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/1.9%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i} \cdot n} \]
      8. *-commutative1.9%

        \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
      9. clear-num1.9%

        \[\leadsto n \cdot \color{blue}{\frac{1}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      10. un-div-inv1.9%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      11. fma-udef1.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}} \]
      12. metadata-eval1.9%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}} \]
      13. metadata-eval1.9%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}} \]
      14. distribute-lft-in1.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}} \]
      15. sub-neg1.9%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}} \]
      16. *-commutative1.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot 100}}} \]
    3. Applied egg-rr1.9%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot 100}}} \]
    4. Taylor expanded in i around 0 99.8%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(0.5 \cdot \frac{1}{n} - 0.5\right)\right)}} \]
    5. Step-by-step derivation
      1. sub-neg99.8%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \color{blue}{\left(0.5 \cdot \frac{1}{n} + \left(-0.5\right)\right)}\right)} \]
      2. associate-*r/99.8%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\color{blue}{\frac{0.5 \cdot 1}{n}} + \left(-0.5\right)\right)\right)} \]
      3. metadata-eval99.8%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{\color{blue}{0.5}}{n} + \left(-0.5\right)\right)\right)} \]
      4. metadata-eval99.8%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + \color{blue}{-0.5}\right)\right)} \]
    6. Simplified99.8%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification99.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq -200000000:\\ \;\;\;\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \cdot 100\\ \mathbf{elif}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq 0:\\ \;\;\;\;\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot \frac{n \cdot 100}{i}\\ \mathbf{elif}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq \infty:\\ \;\;\;\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \cdot 100\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \end{array} \]

Alternative 2: 98.7% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}}\\ t_1 := t_0 \cdot 100\\ \mathbf{if}\;t_0 \leq -\infty:\\ \;\;\;\;t_1\\ \mathbf{elif}\;t_0 \leq 0:\\ \;\;\;\;100 \cdot \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right)}{i}\right)\\ \mathbf{elif}\;t_0 \leq \infty:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (/ (+ (pow (+ 1.0 (/ i n)) n) -1.0) (/ i n))) (t_1 (* t_0 100.0)))
   (if (<= t_0 (- INFINITY))
     t_1
     (if (<= t_0 0.0)
       (* 100.0 (* n (/ (expm1 (* n (log1p (/ i n)))) i)))
       (if (<= t_0 INFINITY)
         t_1
         (/ n (+ 0.01 (* 0.01 (* i (+ (/ 0.5 n) -0.5))))))))))
double code(double i, double n) {
	double t_0 = (pow((1.0 + (i / n)), n) + -1.0) / (i / n);
	double t_1 = t_0 * 100.0;
	double tmp;
	if (t_0 <= -((double) INFINITY)) {
		tmp = t_1;
	} else if (t_0 <= 0.0) {
		tmp = 100.0 * (n * (expm1((n * log1p((i / n)))) / i));
	} else if (t_0 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	}
	return tmp;
}
public static double code(double i, double n) {
	double t_0 = (Math.pow((1.0 + (i / n)), n) + -1.0) / (i / n);
	double t_1 = t_0 * 100.0;
	double tmp;
	if (t_0 <= -Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else if (t_0 <= 0.0) {
		tmp = 100.0 * (n * (Math.expm1((n * Math.log1p((i / n)))) / i));
	} else if (t_0 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	}
	return tmp;
}
def code(i, n):
	t_0 = (math.pow((1.0 + (i / n)), n) + -1.0) / (i / n)
	t_1 = t_0 * 100.0
	tmp = 0
	if t_0 <= -math.inf:
		tmp = t_1
	elif t_0 <= 0.0:
		tmp = 100.0 * (n * (math.expm1((n * math.log1p((i / n)))) / i))
	elif t_0 <= math.inf:
		tmp = t_1
	else:
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))))
	return tmp
function code(i, n)
	t_0 = Float64(Float64((Float64(1.0 + Float64(i / n)) ^ n) + -1.0) / Float64(i / n))
	t_1 = Float64(t_0 * 100.0)
	tmp = 0.0
	if (t_0 <= Float64(-Inf))
		tmp = t_1;
	elseif (t_0 <= 0.0)
		tmp = Float64(100.0 * Float64(n * Float64(expm1(Float64(n * log1p(Float64(i / n)))) / i)));
	elseif (t_0 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(n / Float64(0.01 + Float64(0.01 * Float64(i * Float64(Float64(0.5 / n) + -0.5)))));
	end
	return tmp
end
code[i_, n_] := Block[{t$95$0 = N[(N[(N[Power[N[(1.0 + N[(i / n), $MachinePrecision]), $MachinePrecision], n], $MachinePrecision] + -1.0), $MachinePrecision] / N[(i / n), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(t$95$0 * 100.0), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], t$95$1, If[LessEqual[t$95$0, 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$0, Infinity], t$95$1, N[(n / N[(0.01 + N[(0.01 * N[(i * N[(N[(0.5 / n), $MachinePrecision] + -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

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

\mathbf{elif}\;t_0 \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_0 \leq \infty:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < -inf.0 or -0.0 < (/.f64 (-.f64 (pow.f64 (+.f64 1 (/.f64 i n)) n) 1) (/.f64 i n)) < +inf.0

    1. Initial program 99.9%

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

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

    1. Initial program 30.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-/r/30.4%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{i} \cdot n\right)} \]
      2. pow-to-exp30.4%

        \[\leadsto 100 \cdot \left(\frac{\color{blue}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n}} - 1}{i} \cdot n\right) \]
      3. expm1-def39.8%

        \[\leadsto 100 \cdot \left(\frac{\color{blue}{\mathsf{expm1}\left(\log \left(1 + \frac{i}{n}\right) \cdot n\right)}}{i} \cdot n\right) \]
      4. add-log-exp30.4%

        \[\leadsto 100 \cdot \left(\frac{\mathsf{expm1}\left(\color{blue}{\log \left(e^{\log \left(1 + \frac{i}{n}\right) \cdot n}\right)}\right)}{i} \cdot n\right) \]
      5. pow-to-exp30.4%

        \[\leadsto 100 \cdot \left(\frac{\mathsf{expm1}\left(\log \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n}\right)}\right)}{i} \cdot n\right) \]
      6. log-pow39.8%

        \[\leadsto 100 \cdot \left(\frac{\mathsf{expm1}\left(\color{blue}{n \cdot \log \left(1 + \frac{i}{n}\right)}\right)}{i} \cdot n\right) \]
      7. log1p-udef99.3%

        \[\leadsto 100 \cdot \left(\frac{\mathsf{expm1}\left(n \cdot \color{blue}{\mathsf{log1p}\left(\frac{i}{n}\right)}\right)}{i} \cdot n\right) \]
    3. Applied egg-rr99.3%

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

    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. Step-by-step derivation
      1. associate-*r/0.0%

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

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in0.0%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval0.0%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval0.0%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef0.0%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/1.9%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i} \cdot n} \]
      8. *-commutative1.9%

        \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
      9. clear-num1.9%

        \[\leadsto n \cdot \color{blue}{\frac{1}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      10. un-div-inv1.9%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      11. fma-udef1.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}} \]
      12. metadata-eval1.9%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}} \]
      13. metadata-eval1.9%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}} \]
      14. distribute-lft-in1.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}} \]
      15. sub-neg1.9%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}} \]
      16. *-commutative1.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot 100}}} \]
    3. Applied egg-rr1.9%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot 100}}} \]
    4. Taylor expanded in i around 0 99.8%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(0.5 \cdot \frac{1}{n} - 0.5\right)\right)}} \]
    5. Step-by-step derivation
      1. sub-neg99.8%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \color{blue}{\left(0.5 \cdot \frac{1}{n} + \left(-0.5\right)\right)}\right)} \]
      2. associate-*r/99.8%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\color{blue}{\frac{0.5 \cdot 1}{n}} + \left(-0.5\right)\right)\right)} \]
      3. metadata-eval99.8%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{\color{blue}{0.5}}{n} + \left(-0.5\right)\right)\right)} \]
      4. metadata-eval99.8%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + \color{blue}{-0.5}\right)\right)} \]
    6. Simplified99.8%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification99.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq -\infty:\\ \;\;\;\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \cdot 100\\ \mathbf{elif}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq 0:\\ \;\;\;\;100 \cdot \left(n \cdot \frac{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right)}{i}\right)\\ \mathbf{elif}\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \leq \infty:\\ \;\;\;\;\frac{{\left(1 + \frac{i}{n}\right)}^{n} + -1}{\frac{i}{n}} \cdot 100\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \end{array} \]

Alternative 3: 77.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq -6 \cdot 10^{+52} \lor \neg \left(i \leq 14500000\right) \land i \leq 7.8 \cdot 10^{+262}:\\ \;\;\;\;\mathsf{expm1}\left(i\right) \cdot \left(100 \cdot \frac{n}{i}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= i -6e+52) (and (not (<= i 14500000.0)) (<= i 7.8e+262)))
   (* (expm1 i) (* 100.0 (/ n i)))
   (/ n (+ 0.01 (* 0.01 (* i (+ (/ 0.5 n) -0.5)))))))
double code(double i, double n) {
	double tmp;
	if ((i <= -6e+52) || (!(i <= 14500000.0) && (i <= 7.8e+262))) {
		tmp = expm1(i) * (100.0 * (n / i));
	} else {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	}
	return tmp;
}
public static double code(double i, double n) {
	double tmp;
	if ((i <= -6e+52) || (!(i <= 14500000.0) && (i <= 7.8e+262))) {
		tmp = Math.expm1(i) * (100.0 * (n / i));
	} else {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (i <= -6e+52) or (not (i <= 14500000.0) and (i <= 7.8e+262)):
		tmp = math.expm1(i) * (100.0 * (n / i))
	else:
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))))
	return tmp
function code(i, n)
	tmp = 0.0
	if ((i <= -6e+52) || (!(i <= 14500000.0) && (i <= 7.8e+262)))
		tmp = Float64(expm1(i) * Float64(100.0 * Float64(n / i)));
	else
		tmp = Float64(n / Float64(0.01 + Float64(0.01 * Float64(i * Float64(Float64(0.5 / n) + -0.5)))));
	end
	return tmp
end
code[i_, n_] := If[Or[LessEqual[i, -6e+52], And[N[Not[LessEqual[i, 14500000.0]], $MachinePrecision], LessEqual[i, 7.8e+262]]], N[(N[(Exp[i] - 1), $MachinePrecision] * N[(100.0 * N[(n / i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(n / N[(0.01 + N[(0.01 * N[(i * N[(N[(0.5 / n), $MachinePrecision] + -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq -6 \cdot 10^{+52} \lor \neg \left(i \leq 14500000\right) \land i \leq 7.8 \cdot 10^{+262}:\\
\;\;\;\;\mathsf{expm1}\left(i\right) \cdot \left(100 \cdot \frac{n}{i}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if i < -6e52 or 1.45e7 < i < 7.79999999999999971e262

    1. Initial program 57.4%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 63.7%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative63.7%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def63.7%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified63.7%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Taylor expanded in n around 0 63.7%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    6. Step-by-step derivation
      1. expm1-def63.7%

        \[\leadsto 100 \cdot \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \]
      2. associate-*l/63.6%

        \[\leadsto 100 \cdot \color{blue}{\left(\frac{n}{i} \cdot \mathsf{expm1}\left(i\right)\right)} \]
      3. associate-*r*63.6%

        \[\leadsto \color{blue}{\left(100 \cdot \frac{n}{i}\right) \cdot \mathsf{expm1}\left(i\right)} \]
    7. Simplified63.6%

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

    if -6e52 < i < 1.45e7 or 7.79999999999999971e262 < i

    1. Initial program 13.9%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/13.9%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg13.9%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in13.8%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval13.8%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval13.8%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef13.9%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/14.5%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i} \cdot n} \]
      8. *-commutative14.5%

        \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
      9. clear-num14.5%

        \[\leadsto n \cdot \color{blue}{\frac{1}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      10. un-div-inv14.5%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      11. fma-udef14.5%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}} \]
      12. metadata-eval14.5%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}} \]
      13. metadata-eval14.5%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}} \]
      14. distribute-lft-in14.5%

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

        \[\leadsto \frac{n}{\frac{i}{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}} \]
      16. *-commutative14.5%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot 100}}} \]
    3. Applied egg-rr65.8%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot 100}}} \]
    4. Taylor expanded in i around 0 91.6%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(0.5 \cdot \frac{1}{n} - 0.5\right)\right)}} \]
    5. Step-by-step derivation
      1. sub-neg91.6%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \color{blue}{\left(0.5 \cdot \frac{1}{n} + \left(-0.5\right)\right)}\right)} \]
      2. associate-*r/91.6%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\color{blue}{\frac{0.5 \cdot 1}{n}} + \left(-0.5\right)\right)\right)} \]
      3. metadata-eval91.6%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{\color{blue}{0.5}}{n} + \left(-0.5\right)\right)\right)} \]
      4. metadata-eval91.6%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + \color{blue}{-0.5}\right)\right)} \]
    6. Simplified91.6%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification80.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq -6 \cdot 10^{+52} \lor \neg \left(i \leq 14500000\right) \land i \leq 7.8 \cdot 10^{+262}:\\ \;\;\;\;\mathsf{expm1}\left(i\right) \cdot \left(100 \cdot \frac{n}{i}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \end{array} \]

Alternative 4: 87.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -9.8 \cdot 10^{-8} \lor \neg \left(n \leq 1.05 \cdot 10^{-7}\right):\\ \;\;\;\;100 \cdot \frac{n \cdot \mathsf{expm1}\left(i\right)}{i}\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= n -9.8e-8) (not (<= n 1.05e-7)))
   (* 100.0 (/ (* n (expm1 i)) i))
   (/ n (+ 0.01 (* 0.01 (* i (+ (/ 0.5 n) -0.5)))))))
double code(double i, double n) {
	double tmp;
	if ((n <= -9.8e-8) || !(n <= 1.05e-7)) {
		tmp = 100.0 * ((n * expm1(i)) / i);
	} else {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	}
	return tmp;
}
public static double code(double i, double n) {
	double tmp;
	if ((n <= -9.8e-8) || !(n <= 1.05e-7)) {
		tmp = 100.0 * ((n * Math.expm1(i)) / i);
	} else {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (n <= -9.8e-8) or not (n <= 1.05e-7):
		tmp = 100.0 * ((n * math.expm1(i)) / i)
	else:
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))))
	return tmp
function code(i, n)
	tmp = 0.0
	if ((n <= -9.8e-8) || !(n <= 1.05e-7))
		tmp = Float64(100.0 * Float64(Float64(n * expm1(i)) / i));
	else
		tmp = Float64(n / Float64(0.01 + Float64(0.01 * Float64(i * Float64(Float64(0.5 / n) + -0.5)))));
	end
	return tmp
end
code[i_, n_] := If[Or[LessEqual[n, -9.8e-8], N[Not[LessEqual[n, 1.05e-7]], $MachinePrecision]], N[(100.0 * N[(N[(n * N[(Exp[i] - 1), $MachinePrecision]), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision], N[(n / N[(0.01 + N[(0.01 * N[(i * N[(N[(0.5 / n), $MachinePrecision] + -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -9.8 \cdot 10^{-8} \lor \neg \left(n \leq 1.05 \cdot 10^{-7}\right):\\
\;\;\;\;100 \cdot \frac{n \cdot \mathsf{expm1}\left(i\right)}{i}\\

\mathbf{else}:\\
\;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if n < -9.8000000000000004e-8 or 1.05e-7 < n

    1. Initial program 23.9%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 37.7%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative37.7%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def90.2%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified90.2%

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

    if -9.8000000000000004e-8 < n < 1.05e-7

    1. Initial program 41.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/41.1%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg41.1%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in41.1%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval41.1%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval41.1%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef41.1%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/40.9%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i} \cdot n} \]
      8. *-commutative40.9%

        \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
      9. clear-num40.9%

        \[\leadsto n \cdot \color{blue}{\frac{1}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      10. un-div-inv40.9%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      11. fma-udef40.8%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}} \]
      12. metadata-eval40.8%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}} \]
      13. metadata-eval40.8%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}} \]
      14. distribute-lft-in40.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}} \]
      15. sub-neg40.9%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}} \]
      16. *-commutative40.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot 100}}} \]
    3. Applied egg-rr88.8%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot 100}}} \]
    4. Taylor expanded in i around 0 85.9%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(0.5 \cdot \frac{1}{n} - 0.5\right)\right)}} \]
    5. Step-by-step derivation
      1. sub-neg85.9%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \color{blue}{\left(0.5 \cdot \frac{1}{n} + \left(-0.5\right)\right)}\right)} \]
      2. associate-*r/85.9%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\color{blue}{\frac{0.5 \cdot 1}{n}} + \left(-0.5\right)\right)\right)} \]
      3. metadata-eval85.9%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{\color{blue}{0.5}}{n} + \left(-0.5\right)\right)\right)} \]
      4. metadata-eval85.9%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + \color{blue}{-0.5}\right)\right)} \]
    6. Simplified85.9%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification88.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -9.8 \cdot 10^{-8} \lor \neg \left(n \leq 1.05 \cdot 10^{-7}\right):\\ \;\;\;\;100 \cdot \frac{n \cdot \mathsf{expm1}\left(i\right)}{i}\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \end{array} \]

Alternative 5: 87.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -1 \cdot 10^{-7}:\\ \;\;\;\;100 \cdot \frac{n \cdot \mathsf{expm1}\left(i\right)}{i}\\ \mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 \cdot \frac{i}{\mathsf{expm1}\left(i\right)}}\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= n -1e-7)
   (* 100.0 (/ (* n (expm1 i)) i))
   (if (<= n 1.15e-7)
     (/ n (+ 0.01 (* 0.01 (* i (+ (/ 0.5 n) -0.5)))))
     (/ n (* 0.01 (/ i (expm1 i)))))))
double code(double i, double n) {
	double tmp;
	if (n <= -1e-7) {
		tmp = 100.0 * ((n * expm1(i)) / i);
	} else if (n <= 1.15e-7) {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	} else {
		tmp = n / (0.01 * (i / expm1(i)));
	}
	return tmp;
}
public static double code(double i, double n) {
	double tmp;
	if (n <= -1e-7) {
		tmp = 100.0 * ((n * Math.expm1(i)) / i);
	} else if (n <= 1.15e-7) {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	} else {
		tmp = n / (0.01 * (i / Math.expm1(i)));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if n <= -1e-7:
		tmp = 100.0 * ((n * math.expm1(i)) / i)
	elif n <= 1.15e-7:
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))))
	else:
		tmp = n / (0.01 * (i / math.expm1(i)))
	return tmp
function code(i, n)
	tmp = 0.0
	if (n <= -1e-7)
		tmp = Float64(100.0 * Float64(Float64(n * expm1(i)) / i));
	elseif (n <= 1.15e-7)
		tmp = Float64(n / Float64(0.01 + Float64(0.01 * Float64(i * Float64(Float64(0.5 / n) + -0.5)))));
	else
		tmp = Float64(n / Float64(0.01 * Float64(i / expm1(i))));
	end
	return tmp
end
code[i_, n_] := If[LessEqual[n, -1e-7], N[(100.0 * N[(N[(n * N[(Exp[i] - 1), $MachinePrecision]), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 1.15e-7], N[(n / N[(0.01 + N[(0.01 * N[(i * N[(N[(0.5 / n), $MachinePrecision] + -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(n / N[(0.01 * N[(i / N[(Exp[i] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -1 \cdot 10^{-7}:\\
\;\;\;\;100 \cdot \frac{n \cdot \mathsf{expm1}\left(i\right)}{i}\\

\mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\
\;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{n}{0.01 \cdot \frac{i}{\mathsf{expm1}\left(i\right)}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if n < -9.9999999999999995e-8

    1. Initial program 24.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 34.5%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative34.5%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def86.3%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified86.3%

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

    if -9.9999999999999995e-8 < n < 1.14999999999999997e-7

    1. Initial program 41.1%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/41.1%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg41.1%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in41.1%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval41.1%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval41.1%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef41.1%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/40.9%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i} \cdot n} \]
      8. *-commutative40.9%

        \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
      9. clear-num40.9%

        \[\leadsto n \cdot \color{blue}{\frac{1}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      10. un-div-inv40.9%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      11. fma-udef40.8%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}} \]
      12. metadata-eval40.8%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}} \]
      13. metadata-eval40.8%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}} \]
      14. distribute-lft-in40.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}} \]
      15. sub-neg40.9%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}} \]
      16. *-commutative40.9%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot 100}}} \]
    3. Applied egg-rr88.8%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot 100}}} \]
    4. Taylor expanded in i around 0 85.9%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(0.5 \cdot \frac{1}{n} - 0.5\right)\right)}} \]
    5. Step-by-step derivation
      1. sub-neg85.9%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \color{blue}{\left(0.5 \cdot \frac{1}{n} + \left(-0.5\right)\right)}\right)} \]
      2. associate-*r/85.9%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\color{blue}{\frac{0.5 \cdot 1}{n}} + \left(-0.5\right)\right)\right)} \]
      3. metadata-eval85.9%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{\color{blue}{0.5}}{n} + \left(-0.5\right)\right)\right)} \]
      4. metadata-eval85.9%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + \color{blue}{-0.5}\right)\right)} \]
    6. Simplified85.9%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}} \]

    if 1.14999999999999997e-7 < n

    1. Initial program 23.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/23.3%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg23.3%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in23.3%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval23.3%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval23.3%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef23.3%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/23.9%

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

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

        \[\leadsto n \cdot \color{blue}{\frac{1}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      10. un-div-inv24.0%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      11. fma-udef24.0%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}} \]
      12. metadata-eval24.0%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}} \]
      13. metadata-eval24.0%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}} \]
      14. distribute-lft-in24.0%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}} \]
      15. sub-neg24.0%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}} \]
      16. *-commutative24.0%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot 100}}} \]
    3. Applied egg-rr63.4%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot 100}}} \]
    4. Taylor expanded in n around inf 40.7%

      \[\leadsto \frac{n}{\color{blue}{0.01 \cdot \frac{i}{e^{i} - 1}}} \]
    5. Step-by-step derivation
      1. expm1-def93.7%

        \[\leadsto \frac{n}{0.01 \cdot \frac{i}{\color{blue}{\mathsf{expm1}\left(i\right)}}} \]
    6. Simplified93.7%

      \[\leadsto \frac{n}{\color{blue}{0.01 \cdot \frac{i}{\mathsf{expm1}\left(i\right)}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification88.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -1 \cdot 10^{-7}:\\ \;\;\;\;100 \cdot \frac{n \cdot \mathsf{expm1}\left(i\right)}{i}\\ \mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{n}{0.01 \cdot \frac{i}{\mathsf{expm1}\left(i\right)}}\\ \end{array} \]

Alternative 6: 72.0% accurate, 6.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \left(n + n \cdot \left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= n 1.15e-7)
   (/ n (+ 0.01 (* 0.01 (* i (+ (/ 0.5 n) -0.5)))))
   (*
    100.0
    (+ n (* n (* i (+ (- 0.5 (/ 0.5 n)) (* i 0.16666666666666666))))))))
double code(double i, double n) {
	double tmp;
	if (n <= 1.15e-7) {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	} else {
		tmp = 100.0 * (n + (n * (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 <= 1.15d-7) then
        tmp = n / (0.01d0 + (0.01d0 * (i * ((0.5d0 / n) + (-0.5d0)))))
    else
        tmp = 100.0d0 * (n + (n * (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 <= 1.15e-7) {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	} else {
		tmp = 100.0 * (n + (n * (i * ((0.5 - (0.5 / n)) + (i * 0.16666666666666666)))));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if n <= 1.15e-7:
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))))
	else:
		tmp = 100.0 * (n + (n * (i * ((0.5 - (0.5 / n)) + (i * 0.16666666666666666)))))
	return tmp
function code(i, n)
	tmp = 0.0
	if (n <= 1.15e-7)
		tmp = Float64(n / Float64(0.01 + Float64(0.01 * Float64(i * Float64(Float64(0.5 / n) + -0.5)))));
	else
		tmp = Float64(100.0 * Float64(n + Float64(n * 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 <= 1.15e-7)
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	else
		tmp = 100.0 * (n + (n * (i * ((0.5 - (0.5 / n)) + (i * 0.16666666666666666)))));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[n, 1.15e-7], N[(n / N[(0.01 + N[(0.01 * N[(i * N[(N[(0.5 / n), $MachinePrecision] + -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(100.0 * N[(n + N[(n * 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 1.15 \cdot 10^{-7}:\\
\;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;100 \cdot \left(n + n \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 2 regimes
  2. if n < 1.14999999999999997e-7

    1. Initial program 34.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/34.3%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg34.3%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in34.3%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval34.3%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval34.3%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef34.3%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/34.4%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i} \cdot n} \]
      8. *-commutative34.4%

        \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
      9. clear-num34.5%

        \[\leadsto n \cdot \color{blue}{\frac{1}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      10. un-div-inv34.4%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      11. fma-udef34.4%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}} \]
      12. metadata-eval34.4%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}} \]
      13. metadata-eval34.4%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}} \]
      14. distribute-lft-in34.4%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}} \]
      15. sub-neg34.4%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}} \]
      16. *-commutative34.4%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot 100}}} \]
    3. Applied egg-rr75.3%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot 100}}} \]
    4. Taylor expanded in i around 0 75.7%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(0.5 \cdot \frac{1}{n} - 0.5\right)\right)}} \]
    5. Step-by-step derivation
      1. sub-neg75.7%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \color{blue}{\left(0.5 \cdot \frac{1}{n} + \left(-0.5\right)\right)}\right)} \]
      2. associate-*r/75.7%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\color{blue}{\frac{0.5 \cdot 1}{n}} + \left(-0.5\right)\right)\right)} \]
      3. metadata-eval75.7%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{\color{blue}{0.5}}{n} + \left(-0.5\right)\right)\right)} \]
      4. metadata-eval75.7%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + \color{blue}{-0.5}\right)\right)} \]
    6. Simplified75.7%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}} \]

    if 1.14999999999999997e-7 < n

    1. Initial program 23.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 70.4%

      \[\leadsto 100 \cdot \color{blue}{\left(n + \left(n \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right) + n \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    3. Step-by-step derivation
      1. distribute-lft-out70.7%

        \[\leadsto 100 \cdot \left(n + \color{blue}{n \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. unpow270.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. associate--l+70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)} + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. associate-*r/70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. metadata-eval70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      6. unpow270.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      7. associate-*r/70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      8. metadata-eval70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      9. associate-*r/70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right) \]
      10. metadata-eval70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right)\right) \]
    4. Simplified70.7%

      \[\leadsto 100 \cdot \color{blue}{\left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right)} \]
    5. Taylor expanded in n around inf 70.7%

      \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{0.16666666666666666 \cdot {i}^{2}} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    6. Step-by-step derivation
      1. unpow270.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(0.16666666666666666 \cdot \color{blue}{\left(i \cdot i\right)} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
      2. associate-*r*70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(0.16666666666666666 \cdot i\right) \cdot i} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    7. Simplified70.7%

      \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(0.16666666666666666 \cdot i\right) \cdot i} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    8. Step-by-step derivation
      1. +-commutative70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \left(0.16666666666666666 \cdot i\right) \cdot i\right)}\right) \]
      2. *-commutative70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(i \cdot \left(0.5 - \frac{0.5}{n}\right) + \color{blue}{i \cdot \left(0.16666666666666666 \cdot i\right)}\right)\right) \]
      3. distribute-lft-out70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + 0.16666666666666666 \cdot i\right)\right)}\right) \]
      4. *-commutative70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + \color{blue}{i \cdot 0.16666666666666666}\right)\right)\right) \]
    9. Applied egg-rr70.7%

      \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)}\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification74.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \left(n + n \cdot \left(i \cdot \left(\left(0.5 - \frac{0.5}{n}\right) + i \cdot 0.16666666666666666\right)\right)\right)\\ \end{array} \]

Alternative 7: 64.9% accurate, 6.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := 100 \cdot \left(n + n \cdot \left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)\right)\\ \mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;n \leq 3.8 \cdot 10^{-225}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 5.8 \cdot 10^{-8}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (* 100.0 (+ n (* n (* i (* i 0.16666666666666666)))))))
   (if (<= n -1.25e-81)
     t_0
     (if (<= n 3.8e-225)
       (* 100.0 (/ 0.0 (/ i n)))
       (if (<= n 5.8e-8) (* 100.0 (/ i (/ i n))) t_0)))))
double code(double i, double n) {
	double t_0 = 100.0 * (n + (n * (i * (i * 0.16666666666666666))));
	double tmp;
	if (n <= -1.25e-81) {
		tmp = t_0;
	} else if (n <= 3.8e-225) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 5.8e-8) {
		tmp = 100.0 * (i / (i / n));
	} else {
		tmp = 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 = 100.0d0 * (n + (n * (i * (i * 0.16666666666666666d0))))
    if (n <= (-1.25d-81)) then
        tmp = t_0
    else if (n <= 3.8d-225) then
        tmp = 100.0d0 * (0.0d0 / (i / n))
    else if (n <= 5.8d-8) then
        tmp = 100.0d0 * (i / (i / n))
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double t_0 = 100.0 * (n + (n * (i * (i * 0.16666666666666666))));
	double tmp;
	if (n <= -1.25e-81) {
		tmp = t_0;
	} else if (n <= 3.8e-225) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 5.8e-8) {
		tmp = 100.0 * (i / (i / n));
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(i, n):
	t_0 = 100.0 * (n + (n * (i * (i * 0.16666666666666666))))
	tmp = 0
	if n <= -1.25e-81:
		tmp = t_0
	elif n <= 3.8e-225:
		tmp = 100.0 * (0.0 / (i / n))
	elif n <= 5.8e-8:
		tmp = 100.0 * (i / (i / n))
	else:
		tmp = t_0
	return tmp
function code(i, n)
	t_0 = Float64(100.0 * Float64(n + Float64(n * Float64(i * Float64(i * 0.16666666666666666)))))
	tmp = 0.0
	if (n <= -1.25e-81)
		tmp = t_0;
	elseif (n <= 3.8e-225)
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	elseif (n <= 5.8e-8)
		tmp = Float64(100.0 * Float64(i / Float64(i / n)));
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(i, n)
	t_0 = 100.0 * (n + (n * (i * (i * 0.16666666666666666))));
	tmp = 0.0;
	if (n <= -1.25e-81)
		tmp = t_0;
	elseif (n <= 3.8e-225)
		tmp = 100.0 * (0.0 / (i / n));
	elseif (n <= 5.8e-8)
		tmp = 100.0 * (i / (i / n));
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[i_, n_] := Block[{t$95$0 = N[(100.0 * N[(n + N[(n * N[(i * N[(i * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[n, -1.25e-81], t$95$0, If[LessEqual[n, 3.8e-225], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 5.8e-8], N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$0]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := 100 \cdot \left(n + n \cdot \left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)\right)\\
\mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;n \leq 3.8 \cdot 10^{-225}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 5.8 \cdot 10^{-8}:\\
\;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if n < -1.24999999999999995e-81 or 5.8000000000000003e-8 < n

    1. Initial program 22.5%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 66.2%

      \[\leadsto 100 \cdot \color{blue}{\left(n + \left(n \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right) + n \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    3. Step-by-step derivation
      1. distribute-lft-out66.5%

        \[\leadsto 100 \cdot \left(n + \color{blue}{n \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. unpow266.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. associate--l+66.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)} + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. associate-*r/66.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. metadata-eval66.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      6. unpow266.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      7. associate-*r/66.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      8. metadata-eval66.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      9. associate-*r/66.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right) \]
      10. metadata-eval66.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right)\right) \]
    4. Simplified66.5%

      \[\leadsto 100 \cdot \color{blue}{\left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right)} \]
    5. Taylor expanded in n around inf 66.5%

      \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{0.16666666666666666 \cdot {i}^{2}} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    6. Step-by-step derivation
      1. unpow266.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(0.16666666666666666 \cdot \color{blue}{\left(i \cdot i\right)} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
      2. associate-*r*66.5%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(0.16666666666666666 \cdot i\right) \cdot i} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    7. Simplified66.5%

      \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(0.16666666666666666 \cdot i\right) \cdot i} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    8. Taylor expanded in i around inf 66.0%

      \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(0.16666666666666666 \cdot {i}^{2}\right)}\right) \]
    9. Step-by-step derivation
      1. unpow266.0%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(0.16666666666666666 \cdot \color{blue}{\left(i \cdot i\right)}\right)\right) \]
      2. *-commutative66.0%

        \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(\left(i \cdot i\right) \cdot 0.16666666666666666\right)}\right) \]
      3. associate-*r*66.0%

        \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)}\right) \]
    10. Simplified66.0%

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

    if -1.24999999999999995e-81 < n < 3.8000000000000003e-225

    1. Initial program 72.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 76.6%

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

    if 3.8000000000000003e-225 < n < 5.8000000000000003e-8

    1. Initial program 12.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 75.8%

      \[\leadsto 100 \cdot \frac{\color{blue}{i}}{\frac{i}{n}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification69.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\ \;\;\;\;100 \cdot \left(n + n \cdot \left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)\right)\\ \mathbf{elif}\;n \leq 3.8 \cdot 10^{-225}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 5.8 \cdot 10^{-8}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \left(n + n \cdot \left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)\right)\\ \end{array} \]

Alternative 8: 62.5% accurate, 7.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := n \cdot \left(100 + i \cdot 50\right)\\ t_1 := 100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{if}\;n \leq -2.15 \cdot 10^{+79}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;n \leq -4.1 \cdot 10^{-299}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;n \leq 10^{-275}:\\ \;\;\;\;\left(i \cdot n\right) \cdot 50\\ \mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (* n (+ 100.0 (* i 50.0)))) (t_1 (* 100.0 (/ i (/ i n)))))
   (if (<= n -2.15e+79)
     t_0
     (if (<= n -4.1e-299)
       t_1
       (if (<= n 1e-275) (* (* i n) 50.0) (if (<= n 1.15e-7) t_1 t_0))))))
double code(double i, double n) {
	double t_0 = n * (100.0 + (i * 50.0));
	double t_1 = 100.0 * (i / (i / n));
	double tmp;
	if (n <= -2.15e+79) {
		tmp = t_0;
	} else if (n <= -4.1e-299) {
		tmp = t_1;
	} else if (n <= 1e-275) {
		tmp = (i * n) * 50.0;
	} else if (n <= 1.15e-7) {
		tmp = t_1;
	} else {
		tmp = 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) :: t_1
    real(8) :: tmp
    t_0 = n * (100.0d0 + (i * 50.0d0))
    t_1 = 100.0d0 * (i / (i / n))
    if (n <= (-2.15d+79)) then
        tmp = t_0
    else if (n <= (-4.1d-299)) then
        tmp = t_1
    else if (n <= 1d-275) then
        tmp = (i * n) * 50.0d0
    else if (n <= 1.15d-7) then
        tmp = t_1
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double t_0 = n * (100.0 + (i * 50.0));
	double t_1 = 100.0 * (i / (i / n));
	double tmp;
	if (n <= -2.15e+79) {
		tmp = t_0;
	} else if (n <= -4.1e-299) {
		tmp = t_1;
	} else if (n <= 1e-275) {
		tmp = (i * n) * 50.0;
	} else if (n <= 1.15e-7) {
		tmp = t_1;
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(i, n):
	t_0 = n * (100.0 + (i * 50.0))
	t_1 = 100.0 * (i / (i / n))
	tmp = 0
	if n <= -2.15e+79:
		tmp = t_0
	elif n <= -4.1e-299:
		tmp = t_1
	elif n <= 1e-275:
		tmp = (i * n) * 50.0
	elif n <= 1.15e-7:
		tmp = t_1
	else:
		tmp = t_0
	return tmp
function code(i, n)
	t_0 = Float64(n * Float64(100.0 + Float64(i * 50.0)))
	t_1 = Float64(100.0 * Float64(i / Float64(i / n)))
	tmp = 0.0
	if (n <= -2.15e+79)
		tmp = t_0;
	elseif (n <= -4.1e-299)
		tmp = t_1;
	elseif (n <= 1e-275)
		tmp = Float64(Float64(i * n) * 50.0);
	elseif (n <= 1.15e-7)
		tmp = t_1;
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(i, n)
	t_0 = n * (100.0 + (i * 50.0));
	t_1 = 100.0 * (i / (i / n));
	tmp = 0.0;
	if (n <= -2.15e+79)
		tmp = t_0;
	elseif (n <= -4.1e-299)
		tmp = t_1;
	elseif (n <= 1e-275)
		tmp = (i * n) * 50.0;
	elseif (n <= 1.15e-7)
		tmp = t_1;
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[i_, n_] := Block[{t$95$0 = N[(n * N[(100.0 + N[(i * 50.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[n, -2.15e+79], t$95$0, If[LessEqual[n, -4.1e-299], t$95$1, If[LessEqual[n, 1e-275], N[(N[(i * n), $MachinePrecision] * 50.0), $MachinePrecision], If[LessEqual[n, 1.15e-7], t$95$1, t$95$0]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := n \cdot \left(100 + i \cdot 50\right)\\
t_1 := 100 \cdot \frac{i}{\frac{i}{n}}\\
\mathbf{if}\;n \leq -2.15 \cdot 10^{+79}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;n \leq -4.1 \cdot 10^{-299}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;n \leq 10^{-275}:\\
\;\;\;\;\left(i \cdot n\right) \cdot 50\\

\mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\
\;\;\;\;t_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if n < -2.1500000000000002e79 or 1.14999999999999997e-7 < n

    1. Initial program 20.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 39.4%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative39.4%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def92.5%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified92.5%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Step-by-step derivation
      1. associate-*l/92.3%

        \[\leadsto \color{blue}{\frac{\left(n \cdot \mathsf{expm1}\left(i\right)\right) \cdot 100}{i}} \]
    6. Applied egg-rr92.3%

      \[\leadsto \color{blue}{\frac{\left(n \cdot \mathsf{expm1}\left(i\right)\right) \cdot 100}{i}} \]
    7. Taylor expanded in i around 0 64.0%

      \[\leadsto \color{blue}{50 \cdot \left(n \cdot i\right) + 100 \cdot n} \]
    8. Step-by-step derivation
      1. *-commutative64.0%

        \[\leadsto 50 \cdot \left(n \cdot i\right) + \color{blue}{n \cdot 100} \]
      2. *-commutative64.0%

        \[\leadsto \color{blue}{\left(n \cdot i\right) \cdot 50} + n \cdot 100 \]
      3. associate-*r*64.0%

        \[\leadsto \color{blue}{n \cdot \left(i \cdot 50\right)} + n \cdot 100 \]
      4. +-commutative64.0%

        \[\leadsto \color{blue}{n \cdot 100 + n \cdot \left(i \cdot 50\right)} \]
      5. distribute-lft-in64.0%

        \[\leadsto \color{blue}{n \cdot \left(100 + i \cdot 50\right)} \]
    9. Simplified64.0%

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

    if -2.1500000000000002e79 < n < -4.1000000000000001e-299 or 9.99999999999999934e-276 < n < 1.14999999999999997e-7

    1. Initial program 39.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 61.6%

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

    if -4.1000000000000001e-299 < n < 9.99999999999999934e-276

    1. Initial program 100.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 83.6%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative83.6%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def83.6%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified83.6%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Taylor expanded in i around 0 9.2%

      \[\leadsto \color{blue}{50 \cdot \left(n \cdot i\right) + 100 \cdot n} \]
    6. Taylor expanded in i around inf 84.6%

      \[\leadsto \color{blue}{50 \cdot \left(n \cdot i\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification63.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -2.15 \cdot 10^{+79}:\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \mathbf{elif}\;n \leq -4.1 \cdot 10^{-299}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 10^{-275}:\\ \;\;\;\;\left(i \cdot n\right) \cdot 50\\ \mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \end{array} \]

Alternative 9: 62.8% accurate, 7.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := 100 \cdot \frac{i \cdot n}{i}\\ t_1 := 100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{if}\;n \leq -1 \cdot 10^{-14}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;n \leq 10^{-307}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;n \leq 1.4 \cdot 10^{-275}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;n \leq 1.1 \cdot 10^{-7}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (let* ((t_0 (* 100.0 (/ (* i n) i))) (t_1 (* 100.0 (/ i (/ i n)))))
   (if (<= n -1e-14)
     t_0
     (if (<= n 1e-307)
       t_1
       (if (<= n 1.4e-275)
         t_0
         (if (<= n 1.1e-7) t_1 (* n (+ 100.0 (* i 50.0)))))))))
double code(double i, double n) {
	double t_0 = 100.0 * ((i * n) / i);
	double t_1 = 100.0 * (i / (i / n));
	double tmp;
	if (n <= -1e-14) {
		tmp = t_0;
	} else if (n <= 1e-307) {
		tmp = t_1;
	} else if (n <= 1.4e-275) {
		tmp = t_0;
	} else if (n <= 1.1e-7) {
		tmp = t_1;
	} else {
		tmp = n * (100.0 + (i * 50.0));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: t_0
    real(8) :: t_1
    real(8) :: tmp
    t_0 = 100.0d0 * ((i * n) / i)
    t_1 = 100.0d0 * (i / (i / n))
    if (n <= (-1d-14)) then
        tmp = t_0
    else if (n <= 1d-307) then
        tmp = t_1
    else if (n <= 1.4d-275) then
        tmp = t_0
    else if (n <= 1.1d-7) then
        tmp = t_1
    else
        tmp = n * (100.0d0 + (i * 50.0d0))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double t_0 = 100.0 * ((i * n) / i);
	double t_1 = 100.0 * (i / (i / n));
	double tmp;
	if (n <= -1e-14) {
		tmp = t_0;
	} else if (n <= 1e-307) {
		tmp = t_1;
	} else if (n <= 1.4e-275) {
		tmp = t_0;
	} else if (n <= 1.1e-7) {
		tmp = t_1;
	} else {
		tmp = n * (100.0 + (i * 50.0));
	}
	return tmp;
}
def code(i, n):
	t_0 = 100.0 * ((i * n) / i)
	t_1 = 100.0 * (i / (i / n))
	tmp = 0
	if n <= -1e-14:
		tmp = t_0
	elif n <= 1e-307:
		tmp = t_1
	elif n <= 1.4e-275:
		tmp = t_0
	elif n <= 1.1e-7:
		tmp = t_1
	else:
		tmp = n * (100.0 + (i * 50.0))
	return tmp
function code(i, n)
	t_0 = Float64(100.0 * Float64(Float64(i * n) / i))
	t_1 = Float64(100.0 * Float64(i / Float64(i / n)))
	tmp = 0.0
	if (n <= -1e-14)
		tmp = t_0;
	elseif (n <= 1e-307)
		tmp = t_1;
	elseif (n <= 1.4e-275)
		tmp = t_0;
	elseif (n <= 1.1e-7)
		tmp = t_1;
	else
		tmp = Float64(n * Float64(100.0 + Float64(i * 50.0)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	t_0 = 100.0 * ((i * n) / i);
	t_1 = 100.0 * (i / (i / n));
	tmp = 0.0;
	if (n <= -1e-14)
		tmp = t_0;
	elseif (n <= 1e-307)
		tmp = t_1;
	elseif (n <= 1.4e-275)
		tmp = t_0;
	elseif (n <= 1.1e-7)
		tmp = t_1;
	else
		tmp = n * (100.0 + (i * 50.0));
	end
	tmp_2 = tmp;
end
code[i_, n_] := Block[{t$95$0 = N[(100.0 * N[(N[(i * n), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[n, -1e-14], t$95$0, If[LessEqual[n, 1e-307], t$95$1, If[LessEqual[n, 1.4e-275], t$95$0, If[LessEqual[n, 1.1e-7], t$95$1, N[(n * N[(100.0 + N[(i * 50.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := 100 \cdot \frac{i \cdot n}{i}\\
t_1 := 100 \cdot \frac{i}{\frac{i}{n}}\\
\mathbf{if}\;n \leq -1 \cdot 10^{-14}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;n \leq 10^{-307}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;n \leq 1.4 \cdot 10^{-275}:\\
\;\;\;\;t_0\\

\mathbf{elif}\;n \leq 1.1 \cdot 10^{-7}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if n < -9.99999999999999999e-15 or 9.99999999999999909e-308 < n < 1.39999999999999997e-275

    1. Initial program 29.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 37.4%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative37.4%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def86.4%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified86.4%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Taylor expanded in i around 0 62.3%

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

    if -9.99999999999999999e-15 < n < 9.99999999999999909e-308 or 1.39999999999999997e-275 < n < 1.1000000000000001e-7

    1. Initial program 38.2%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 62.6%

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

    if 1.1000000000000001e-7 < n

    1. Initial program 23.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 40.7%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative40.7%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def93.7%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified93.7%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Step-by-step derivation
      1. associate-*l/93.5%

        \[\leadsto \color{blue}{\frac{\left(n \cdot \mathsf{expm1}\left(i\right)\right) \cdot 100}{i}} \]
    6. Applied egg-rr93.5%

      \[\leadsto \color{blue}{\frac{\left(n \cdot \mathsf{expm1}\left(i\right)\right) \cdot 100}{i}} \]
    7. Taylor expanded in i around 0 65.5%

      \[\leadsto \color{blue}{50 \cdot \left(n \cdot i\right) + 100 \cdot n} \]
    8. Step-by-step derivation
      1. *-commutative65.5%

        \[\leadsto 50 \cdot \left(n \cdot i\right) + \color{blue}{n \cdot 100} \]
      2. *-commutative65.5%

        \[\leadsto \color{blue}{\left(n \cdot i\right) \cdot 50} + n \cdot 100 \]
      3. associate-*r*65.5%

        \[\leadsto \color{blue}{n \cdot \left(i \cdot 50\right)} + n \cdot 100 \]
      4. +-commutative65.5%

        \[\leadsto \color{blue}{n \cdot 100 + n \cdot \left(i \cdot 50\right)} \]
      5. distribute-lft-in65.5%

        \[\leadsto \color{blue}{n \cdot \left(100 + i \cdot 50\right)} \]
    9. Simplified65.5%

      \[\leadsto \color{blue}{n \cdot \left(100 + i \cdot 50\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification63.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -1 \cdot 10^{-14}:\\ \;\;\;\;100 \cdot \frac{i \cdot n}{i}\\ \mathbf{elif}\;n \leq 10^{-307}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 1.4 \cdot 10^{-275}:\\ \;\;\;\;100 \cdot \frac{i \cdot n}{i}\\ \mathbf{elif}\;n \leq 1.1 \cdot 10^{-7}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \end{array} \]

Alternative 10: 63.1% accurate, 7.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\ \;\;\;\;100 \cdot \frac{i \cdot n}{i}\\ \mathbf{elif}\;n \leq 6 \cdot 10^{-227}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 5.8 \cdot 10^{-8}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot 100 + \left(i \cdot n\right) \cdot 50\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= n -1.25e-81)
   (* 100.0 (/ (* i n) i))
   (if (<= n 6e-227)
     (* 100.0 (/ 0.0 (/ i n)))
     (if (<= n 5.8e-8)
       (* 100.0 (/ i (/ i n)))
       (+ (* n 100.0) (* (* i n) 50.0))))))
double code(double i, double n) {
	double tmp;
	if (n <= -1.25e-81) {
		tmp = 100.0 * ((i * n) / i);
	} else if (n <= 6e-227) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 5.8e-8) {
		tmp = 100.0 * (i / (i / n));
	} else {
		tmp = (n * 100.0) + ((i * n) * 50.0);
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if (n <= (-1.25d-81)) then
        tmp = 100.0d0 * ((i * n) / i)
    else if (n <= 6d-227) then
        tmp = 100.0d0 * (0.0d0 / (i / n))
    else if (n <= 5.8d-8) then
        tmp = 100.0d0 * (i / (i / n))
    else
        tmp = (n * 100.0d0) + ((i * n) * 50.0d0)
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (n <= -1.25e-81) {
		tmp = 100.0 * ((i * n) / i);
	} else if (n <= 6e-227) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 5.8e-8) {
		tmp = 100.0 * (i / (i / n));
	} else {
		tmp = (n * 100.0) + ((i * n) * 50.0);
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if n <= -1.25e-81:
		tmp = 100.0 * ((i * n) / i)
	elif n <= 6e-227:
		tmp = 100.0 * (0.0 / (i / n))
	elif n <= 5.8e-8:
		tmp = 100.0 * (i / (i / n))
	else:
		tmp = (n * 100.0) + ((i * n) * 50.0)
	return tmp
function code(i, n)
	tmp = 0.0
	if (n <= -1.25e-81)
		tmp = Float64(100.0 * Float64(Float64(i * n) / i));
	elseif (n <= 6e-227)
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	elseif (n <= 5.8e-8)
		tmp = Float64(100.0 * Float64(i / Float64(i / n)));
	else
		tmp = Float64(Float64(n * 100.0) + Float64(Float64(i * n) * 50.0));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (n <= -1.25e-81)
		tmp = 100.0 * ((i * n) / i);
	elseif (n <= 6e-227)
		tmp = 100.0 * (0.0 / (i / n));
	elseif (n <= 5.8e-8)
		tmp = 100.0 * (i / (i / n));
	else
		tmp = (n * 100.0) + ((i * n) * 50.0);
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[n, -1.25e-81], N[(100.0 * N[(N[(i * n), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 6e-227], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 5.8e-8], N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(n * 100.0), $MachinePrecision] + N[(N[(i * n), $MachinePrecision] * 50.0), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\
\;\;\;\;100 \cdot \frac{i \cdot n}{i}\\

\mathbf{elif}\;n \leq 6 \cdot 10^{-227}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 5.8 \cdot 10^{-8}:\\
\;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\

\mathbf{else}:\\
\;\;\;\;n \cdot 100 + \left(i \cdot n\right) \cdot 50\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if n < -1.24999999999999995e-81

    1. Initial program 21.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 29.4%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative29.4%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def83.2%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified83.2%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Taylor expanded in i around 0 60.7%

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

    if -1.24999999999999995e-81 < n < 5.9999999999999999e-227

    1. Initial program 72.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 76.6%

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

    if 5.9999999999999999e-227 < n < 5.8000000000000003e-8

    1. Initial program 12.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 75.8%

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

    if 5.8000000000000003e-8 < n

    1. Initial program 23.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 40.7%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative40.7%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def93.7%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified93.7%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Taylor expanded in i around 0 65.5%

      \[\leadsto \color{blue}{50 \cdot \left(n \cdot i\right) + 100 \cdot n} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification67.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\ \;\;\;\;100 \cdot \frac{i \cdot n}{i}\\ \mathbf{elif}\;n \leq 6 \cdot 10^{-227}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 5.8 \cdot 10^{-8}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot 100 + \left(i \cdot n\right) \cdot 50\\ \end{array} \]

Alternative 11: 71.8% accurate, 7.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \left(n + n \cdot \left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= n 1.15e-7)
   (/ n (+ 0.01 (* 0.01 (* i (+ (/ 0.5 n) -0.5)))))
   (* 100.0 (+ n (* n (* i (* i 0.16666666666666666)))))))
double code(double i, double n) {
	double tmp;
	if (n <= 1.15e-7) {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	} else {
		tmp = 100.0 * (n + (n * (i * (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 <= 1.15d-7) then
        tmp = n / (0.01d0 + (0.01d0 * (i * ((0.5d0 / n) + (-0.5d0)))))
    else
        tmp = 100.0d0 * (n + (n * (i * (i * 0.16666666666666666d0))))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (n <= 1.15e-7) {
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	} else {
		tmp = 100.0 * (n + (n * (i * (i * 0.16666666666666666))));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if n <= 1.15e-7:
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))))
	else:
		tmp = 100.0 * (n + (n * (i * (i * 0.16666666666666666))))
	return tmp
function code(i, n)
	tmp = 0.0
	if (n <= 1.15e-7)
		tmp = Float64(n / Float64(0.01 + Float64(0.01 * Float64(i * Float64(Float64(0.5 / n) + -0.5)))));
	else
		tmp = Float64(100.0 * Float64(n + Float64(n * Float64(i * Float64(i * 0.16666666666666666)))));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (n <= 1.15e-7)
		tmp = n / (0.01 + (0.01 * (i * ((0.5 / n) + -0.5))));
	else
		tmp = 100.0 * (n + (n * (i * (i * 0.16666666666666666))));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[n, 1.15e-7], N[(n / N[(0.01 + N[(0.01 * N[(i * N[(N[(0.5 / n), $MachinePrecision] + -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(100.0 * N[(n + N[(n * N[(i * N[(i * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq 1.15 \cdot 10^{-7}:\\
\;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if n < 1.14999999999999997e-7

    1. Initial program 34.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Step-by-step derivation
      1. associate-*r/34.3%

        \[\leadsto \color{blue}{\frac{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{\frac{i}{n}}} \]
      2. sub-neg34.3%

        \[\leadsto \frac{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}{\frac{i}{n}} \]
      3. distribute-lft-in34.3%

        \[\leadsto \frac{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \left(-1\right)}}{\frac{i}{n}} \]
      4. metadata-eval34.3%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{-1}}{\frac{i}{n}} \]
      5. metadata-eval34.3%

        \[\leadsto \frac{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{-100}}{\frac{i}{n}} \]
      6. fma-udef34.3%

        \[\leadsto \frac{\color{blue}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}{\frac{i}{n}} \]
      7. associate-/r/34.4%

        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i} \cdot n} \]
      8. *-commutative34.4%

        \[\leadsto \color{blue}{n \cdot \frac{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}{i}} \]
      9. clear-num34.5%

        \[\leadsto n \cdot \color{blue}{\frac{1}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      10. un-div-inv34.4%

        \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{fma}\left(100, {\left(1 + \frac{i}{n}\right)}^{n}, -100\right)}}} \]
      11. fma-udef34.4%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + -100}}} \]
      12. metadata-eval34.4%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + \color{blue}{100 \cdot -1}}} \]
      13. metadata-eval34.4%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot {\left(1 + \frac{i}{n}\right)}^{n} + 100 \cdot \color{blue}{\left(-1\right)}}} \]
      14. distribute-lft-in34.4%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{100 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} + \left(-1\right)\right)}}} \]
      15. sub-neg34.4%

        \[\leadsto \frac{n}{\frac{i}{100 \cdot \color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}} \]
      16. *-commutative34.4%

        \[\leadsto \frac{n}{\frac{i}{\color{blue}{\left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right) \cdot 100}}} \]
    3. Applied egg-rr75.3%

      \[\leadsto \color{blue}{\frac{n}{\frac{i}{\mathsf{expm1}\left(n \cdot \mathsf{log1p}\left(\frac{i}{n}\right)\right) \cdot 100}}} \]
    4. Taylor expanded in i around 0 75.7%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(0.5 \cdot \frac{1}{n} - 0.5\right)\right)}} \]
    5. Step-by-step derivation
      1. sub-neg75.7%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \color{blue}{\left(0.5 \cdot \frac{1}{n} + \left(-0.5\right)\right)}\right)} \]
      2. associate-*r/75.7%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\color{blue}{\frac{0.5 \cdot 1}{n}} + \left(-0.5\right)\right)\right)} \]
      3. metadata-eval75.7%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{\color{blue}{0.5}}{n} + \left(-0.5\right)\right)\right)} \]
      4. metadata-eval75.7%

        \[\leadsto \frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + \color{blue}{-0.5}\right)\right)} \]
    6. Simplified75.7%

      \[\leadsto \frac{n}{\color{blue}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}} \]

    if 1.14999999999999997e-7 < n

    1. Initial program 23.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 70.4%

      \[\leadsto 100 \cdot \color{blue}{\left(n + \left(n \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right)\right) + n \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)\right)} \]
    3. Step-by-step derivation
      1. distribute-lft-out70.7%

        \[\leadsto 100 \cdot \left(n + \color{blue}{n \cdot \left({i}^{2} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)}\right) \]
      2. unpow270.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(i \cdot i\right)} \cdot \left(\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + 0.16666666666666666\right) - 0.5 \cdot \frac{1}{n}\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      3. associate--l+70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right)} + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      4. associate-*r/70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\color{blue}{\frac{0.3333333333333333 \cdot 1}{{n}^{2}}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      5. metadata-eval70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{\color{blue}{0.3333333333333333}}{{n}^{2}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      6. unpow270.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{\color{blue}{n \cdot n}} + \left(0.16666666666666666 - 0.5 \cdot \frac{1}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      7. associate-*r/70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      8. metadata-eval70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{\color{blue}{0.5}}{n}\right)\right) + i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right) \]
      9. associate-*r/70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right)\right) \]
      10. metadata-eval70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right)\right) \]
    4. Simplified70.7%

      \[\leadsto 100 \cdot \color{blue}{\left(n + n \cdot \left(\left(i \cdot i\right) \cdot \left(\frac{0.3333333333333333}{n \cdot n} + \left(0.16666666666666666 - \frac{0.5}{n}\right)\right) + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right)} \]
    5. Taylor expanded in n around inf 70.7%

      \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{0.16666666666666666 \cdot {i}^{2}} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    6. Step-by-step derivation
      1. unpow270.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(0.16666666666666666 \cdot \color{blue}{\left(i \cdot i\right)} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
      2. associate-*r*70.7%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(0.16666666666666666 \cdot i\right) \cdot i} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    7. Simplified70.7%

      \[\leadsto 100 \cdot \left(n + n \cdot \left(\color{blue}{\left(0.16666666666666666 \cdot i\right) \cdot i} + i \cdot \left(0.5 - \frac{0.5}{n}\right)\right)\right) \]
    8. Taylor expanded in i around inf 70.0%

      \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(0.16666666666666666 \cdot {i}^{2}\right)}\right) \]
    9. Step-by-step derivation
      1. unpow270.0%

        \[\leadsto 100 \cdot \left(n + n \cdot \left(0.16666666666666666 \cdot \color{blue}{\left(i \cdot i\right)}\right)\right) \]
      2. *-commutative70.0%

        \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(\left(i \cdot i\right) \cdot 0.16666666666666666\right)}\right) \]
      3. associate-*r*70.0%

        \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)}\right) \]
    10. Simplified70.0%

      \[\leadsto 100 \cdot \left(n + n \cdot \color{blue}{\left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)}\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification73.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;\frac{n}{0.01 + 0.01 \cdot \left(i \cdot \left(\frac{0.5}{n} + -0.5\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;100 \cdot \left(n + n \cdot \left(i \cdot \left(i \cdot 0.16666666666666666\right)\right)\right)\\ \end{array} \]

Alternative 12: 63.1% accurate, 8.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\ \;\;\;\;100 \cdot \frac{i \cdot n}{i}\\ \mathbf{elif}\;n \leq 3.5 \cdot 10^{-230}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= n -1.25e-81)
   (* 100.0 (/ (* i n) i))
   (if (<= n 3.5e-230)
     (* 100.0 (/ 0.0 (/ i n)))
     (if (<= n 1.15e-7) (* 100.0 (/ i (/ i n))) (* n (+ 100.0 (* i 50.0)))))))
double code(double i, double n) {
	double tmp;
	if (n <= -1.25e-81) {
		tmp = 100.0 * ((i * n) / i);
	} else if (n <= 3.5e-230) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 1.15e-7) {
		tmp = 100.0 * (i / (i / n));
	} else {
		tmp = n * (100.0 + (i * 50.0));
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if (n <= (-1.25d-81)) then
        tmp = 100.0d0 * ((i * n) / i)
    else if (n <= 3.5d-230) then
        tmp = 100.0d0 * (0.0d0 / (i / n))
    else if (n <= 1.15d-7) then
        tmp = 100.0d0 * (i / (i / n))
    else
        tmp = n * (100.0d0 + (i * 50.0d0))
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (n <= -1.25e-81) {
		tmp = 100.0 * ((i * n) / i);
	} else if (n <= 3.5e-230) {
		tmp = 100.0 * (0.0 / (i / n));
	} else if (n <= 1.15e-7) {
		tmp = 100.0 * (i / (i / n));
	} else {
		tmp = n * (100.0 + (i * 50.0));
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if n <= -1.25e-81:
		tmp = 100.0 * ((i * n) / i)
	elif n <= 3.5e-230:
		tmp = 100.0 * (0.0 / (i / n))
	elif n <= 1.15e-7:
		tmp = 100.0 * (i / (i / n))
	else:
		tmp = n * (100.0 + (i * 50.0))
	return tmp
function code(i, n)
	tmp = 0.0
	if (n <= -1.25e-81)
		tmp = Float64(100.0 * Float64(Float64(i * n) / i));
	elseif (n <= 3.5e-230)
		tmp = Float64(100.0 * Float64(0.0 / Float64(i / n)));
	elseif (n <= 1.15e-7)
		tmp = Float64(100.0 * Float64(i / Float64(i / n)));
	else
		tmp = Float64(n * Float64(100.0 + Float64(i * 50.0)));
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (n <= -1.25e-81)
		tmp = 100.0 * ((i * n) / i);
	elseif (n <= 3.5e-230)
		tmp = 100.0 * (0.0 / (i / n));
	elseif (n <= 1.15e-7)
		tmp = 100.0 * (i / (i / n));
	else
		tmp = n * (100.0 + (i * 50.0));
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[n, -1.25e-81], N[(100.0 * N[(N[(i * n), $MachinePrecision] / i), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 3.5e-230], N[(100.0 * N[(0.0 / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[n, 1.15e-7], N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(n * N[(100.0 + N[(i * 50.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\
\;\;\;\;100 \cdot \frac{i \cdot n}{i}\\

\mathbf{elif}\;n \leq 3.5 \cdot 10^{-230}:\\
\;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\

\mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\
\;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\

\mathbf{else}:\\
\;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if n < -1.24999999999999995e-81

    1. Initial program 21.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 29.4%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative29.4%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def83.2%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified83.2%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Taylor expanded in i around 0 60.7%

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

    if -1.24999999999999995e-81 < n < 3.49999999999999988e-230

    1. Initial program 72.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 76.6%

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

    if 3.49999999999999988e-230 < n < 1.14999999999999997e-7

    1. Initial program 12.0%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 75.8%

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

    if 1.14999999999999997e-7 < n

    1. Initial program 23.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 40.7%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative40.7%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def93.7%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified93.7%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Step-by-step derivation
      1. associate-*l/93.5%

        \[\leadsto \color{blue}{\frac{\left(n \cdot \mathsf{expm1}\left(i\right)\right) \cdot 100}{i}} \]
    6. Applied egg-rr93.5%

      \[\leadsto \color{blue}{\frac{\left(n \cdot \mathsf{expm1}\left(i\right)\right) \cdot 100}{i}} \]
    7. Taylor expanded in i around 0 65.5%

      \[\leadsto \color{blue}{50 \cdot \left(n \cdot i\right) + 100 \cdot n} \]
    8. Step-by-step derivation
      1. *-commutative65.5%

        \[\leadsto 50 \cdot \left(n \cdot i\right) + \color{blue}{n \cdot 100} \]
      2. *-commutative65.5%

        \[\leadsto \color{blue}{\left(n \cdot i\right) \cdot 50} + n \cdot 100 \]
      3. associate-*r*65.5%

        \[\leadsto \color{blue}{n \cdot \left(i \cdot 50\right)} + n \cdot 100 \]
      4. +-commutative65.5%

        \[\leadsto \color{blue}{n \cdot 100 + n \cdot \left(i \cdot 50\right)} \]
      5. distribute-lft-in65.5%

        \[\leadsto \color{blue}{n \cdot \left(100 + i \cdot 50\right)} \]
    9. Simplified65.5%

      \[\leadsto \color{blue}{n \cdot \left(100 + i \cdot 50\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification67.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;n \leq -1.25 \cdot 10^{-81}:\\ \;\;\;\;100 \cdot \frac{i \cdot n}{i}\\ \mathbf{elif}\;n \leq 3.5 \cdot 10^{-230}:\\ \;\;\;\;100 \cdot \frac{0}{\frac{i}{n}}\\ \mathbf{elif}\;n \leq 1.15 \cdot 10^{-7}:\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot \left(100 + i \cdot 50\right)\\ \end{array} \]

Alternative 13: 56.7% accurate, 10.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq -2 \cdot 10^{+55} \lor \neg \left(i \leq 1.3 \cdot 10^{-62}\right):\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot 100\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (or (<= i -2e+55) (not (<= i 1.3e-62)))
   (* 100.0 (/ i (/ i n)))
   (* n 100.0)))
double code(double i, double n) {
	double tmp;
	if ((i <= -2e+55) || !(i <= 1.3e-62)) {
		tmp = 100.0 * (i / (i / n));
	} else {
		tmp = n * 100.0;
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if ((i <= (-2d+55)) .or. (.not. (i <= 1.3d-62))) then
        tmp = 100.0d0 * (i / (i / n))
    else
        tmp = n * 100.0d0
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if ((i <= -2e+55) || !(i <= 1.3e-62)) {
		tmp = 100.0 * (i / (i / n));
	} else {
		tmp = n * 100.0;
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if (i <= -2e+55) or not (i <= 1.3e-62):
		tmp = 100.0 * (i / (i / n))
	else:
		tmp = n * 100.0
	return tmp
function code(i, n)
	tmp = 0.0
	if ((i <= -2e+55) || !(i <= 1.3e-62))
		tmp = Float64(100.0 * Float64(i / Float64(i / n)));
	else
		tmp = Float64(n * 100.0);
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if ((i <= -2e+55) || ~((i <= 1.3e-62)))
		tmp = 100.0 * (i / (i / n));
	else
		tmp = n * 100.0;
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[Or[LessEqual[i, -2e+55], N[Not[LessEqual[i, 1.3e-62]], $MachinePrecision]], N[(100.0 * N[(i / N[(i / n), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(n * 100.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq -2 \cdot 10^{+55} \lor \neg \left(i \leq 1.3 \cdot 10^{-62}\right):\\
\;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if i < -2.00000000000000002e55 or 1.3e-62 < i

    1. Initial program 52.7%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 29.1%

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

    if -2.00000000000000002e55 < i < 1.3e-62

    1. Initial program 13.6%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 80.8%

      \[\leadsto \color{blue}{100 \cdot n} \]
    3. Step-by-step derivation
      1. *-commutative80.8%

        \[\leadsto \color{blue}{n \cdot 100} \]
    4. Simplified80.8%

      \[\leadsto \color{blue}{n \cdot 100} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification58.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq -2 \cdot 10^{+55} \lor \neg \left(i \leq 1.3 \cdot 10^{-62}\right):\\ \;\;\;\;100 \cdot \frac{i}{\frac{i}{n}}\\ \mathbf{else}:\\ \;\;\;\;n \cdot 100\\ \end{array} \]

Alternative 14: 55.3% accurate, 16.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;i \leq 350000000000:\\ \;\;\;\;n \cdot 100\\ \mathbf{else}:\\ \;\;\;\;\left(i \cdot n\right) \cdot 50\\ \end{array} \end{array} \]
(FPCore (i n)
 :precision binary64
 (if (<= i 350000000000.0) (* n 100.0) (* (* i n) 50.0)))
double code(double i, double n) {
	double tmp;
	if (i <= 350000000000.0) {
		tmp = n * 100.0;
	} else {
		tmp = (i * n) * 50.0;
	}
	return tmp;
}
real(8) function code(i, n)
    real(8), intent (in) :: i
    real(8), intent (in) :: n
    real(8) :: tmp
    if (i <= 350000000000.0d0) then
        tmp = n * 100.0d0
    else
        tmp = (i * n) * 50.0d0
    end if
    code = tmp
end function
public static double code(double i, double n) {
	double tmp;
	if (i <= 350000000000.0) {
		tmp = n * 100.0;
	} else {
		tmp = (i * n) * 50.0;
	}
	return tmp;
}
def code(i, n):
	tmp = 0
	if i <= 350000000000.0:
		tmp = n * 100.0
	else:
		tmp = (i * n) * 50.0
	return tmp
function code(i, n)
	tmp = 0.0
	if (i <= 350000000000.0)
		tmp = Float64(n * 100.0);
	else
		tmp = Float64(Float64(i * n) * 50.0);
	end
	return tmp
end
function tmp_2 = code(i, n)
	tmp = 0.0;
	if (i <= 350000000000.0)
		tmp = n * 100.0;
	else
		tmp = (i * n) * 50.0;
	end
	tmp_2 = tmp;
end
code[i_, n_] := If[LessEqual[i, 350000000000.0], N[(n * 100.0), $MachinePrecision], N[(N[(i * n), $MachinePrecision] * 50.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;i \leq 350000000000:\\
\;\;\;\;n \cdot 100\\

\mathbf{else}:\\
\;\;\;\;\left(i \cdot n\right) \cdot 50\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if i < 3.5e11

    1. Initial program 26.3%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in i around 0 60.5%

      \[\leadsto \color{blue}{100 \cdot n} \]
    3. Step-by-step derivation
      1. *-commutative60.5%

        \[\leadsto \color{blue}{n \cdot 100} \]
    4. Simplified60.5%

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

    if 3.5e11 < i

    1. Initial program 48.8%

      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
    2. Taylor expanded in n around inf 48.8%

      \[\leadsto \color{blue}{100 \cdot \frac{n \cdot \left(e^{i} - 1\right)}{i}} \]
    3. Step-by-step derivation
      1. *-commutative48.8%

        \[\leadsto \color{blue}{\frac{n \cdot \left(e^{i} - 1\right)}{i} \cdot 100} \]
      2. expm1-def48.8%

        \[\leadsto \frac{n \cdot \color{blue}{\mathsf{expm1}\left(i\right)}}{i} \cdot 100 \]
    4. Simplified48.8%

      \[\leadsto \color{blue}{\frac{n \cdot \mathsf{expm1}\left(i\right)}{i} \cdot 100} \]
    5. Taylor expanded in i around 0 20.5%

      \[\leadsto \color{blue}{50 \cdot \left(n \cdot i\right) + 100 \cdot n} \]
    6. Taylor expanded in i around inf 20.5%

      \[\leadsto \color{blue}{50 \cdot \left(n \cdot i\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification52.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;i \leq 350000000000:\\ \;\;\;\;n \cdot 100\\ \mathbf{else}:\\ \;\;\;\;\left(i \cdot n\right) \cdot 50\\ \end{array} \]

Alternative 15: 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 30.9%

    \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
  2. Taylor expanded in i around 0 51.9%

    \[\leadsto 100 \cdot \color{blue}{\left(n + n \cdot \left(i \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right)\right)} \]
  3. Step-by-step derivation
    1. associate-*r*52.1%

      \[\leadsto 100 \cdot \left(n + \color{blue}{\left(n \cdot i\right) \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)}\right) \]
    2. *-commutative52.1%

      \[\leadsto 100 \cdot \left(n + \color{blue}{\left(i \cdot n\right)} \cdot \left(0.5 - 0.5 \cdot \frac{1}{n}\right)\right) \]
    3. associate-*r/52.1%

      \[\leadsto 100 \cdot \left(n + \left(i \cdot n\right) \cdot \left(0.5 - \color{blue}{\frac{0.5 \cdot 1}{n}}\right)\right) \]
    4. metadata-eval52.1%

      \[\leadsto 100 \cdot \left(n + \left(i \cdot n\right) \cdot \left(0.5 - \frac{\color{blue}{0.5}}{n}\right)\right) \]
  4. Simplified52.1%

    \[\leadsto 100 \cdot \color{blue}{\left(n + \left(i \cdot n\right) \cdot \left(0.5 - \frac{0.5}{n}\right)\right)} \]
  5. Taylor expanded in n around 0 2.7%

    \[\leadsto \color{blue}{-50 \cdot i} \]
  6. Step-by-step derivation
    1. *-commutative2.7%

      \[\leadsto \color{blue}{i \cdot -50} \]
  7. Simplified2.7%

    \[\leadsto \color{blue}{i \cdot -50} \]
  8. Final simplification2.7%

    \[\leadsto i \cdot -50 \]

Alternative 16: 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 30.9%

    \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \]
  2. Taylor expanded in i around 0 49.1%

    \[\leadsto \color{blue}{100 \cdot n} \]
  3. Step-by-step derivation
    1. *-commutative49.1%

      \[\leadsto \color{blue}{n \cdot 100} \]
  4. Simplified49.1%

    \[\leadsto \color{blue}{n \cdot 100} \]
  5. Final simplification49.1%

    \[\leadsto n \cdot 100 \]

Developer target: 34.0% 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 2023174 
(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))))