Rosa's DopplerBench

Percentage Accurate: 72.9% → 98.1%
Time: 16.5s
Alternatives: 15
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \end{array} \]
(FPCore (u v t1) :precision binary64 (/ (* (- t1) v) (* (+ t1 u) (+ t1 u))))
double code(double u, double v, double t1) {
	return (-t1 * v) / ((t1 + u) * (t1 + u));
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    code = (-t1 * v) / ((t1 + u) * (t1 + u))
end function
public static double code(double u, double v, double t1) {
	return (-t1 * v) / ((t1 + u) * (t1 + u));
}
def code(u, v, t1):
	return (-t1 * v) / ((t1 + u) * (t1 + u))
function code(u, v, t1)
	return Float64(Float64(Float64(-t1) * v) / Float64(Float64(t1 + u) * Float64(t1 + u)))
end
function tmp = code(u, v, t1)
	tmp = (-t1 * v) / ((t1 + u) * (t1 + u));
end
code[u_, v_, t1_] := N[(N[((-t1) * v), $MachinePrecision] / N[(N[(t1 + u), $MachinePrecision] * N[(t1 + u), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)}
\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 15 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: 72.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \end{array} \]
(FPCore (u v t1) :precision binary64 (/ (* (- t1) v) (* (+ t1 u) (+ t1 u))))
double code(double u, double v, double t1) {
	return (-t1 * v) / ((t1 + u) * (t1 + u));
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    code = (-t1 * v) / ((t1 + u) * (t1 + u))
end function
public static double code(double u, double v, double t1) {
	return (-t1 * v) / ((t1 + u) * (t1 + u));
}
def code(u, v, t1):
	return (-t1 * v) / ((t1 + u) * (t1 + u))
function code(u, v, t1)
	return Float64(Float64(Float64(-t1) * v) / Float64(Float64(t1 + u) * Float64(t1 + u)))
end
function tmp = code(u, v, t1)
	tmp = (-t1 * v) / ((t1 + u) * (t1 + u));
end
code[u_, v_, t1_] := N[(N[((-t1) * v), $MachinePrecision] / N[(N[(t1 + u), $MachinePrecision] * N[(t1 + u), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)}
\end{array}

Alternative 1: 98.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u} \end{array} \]
(FPCore (u v t1) :precision binary64 (* (/ (- t1) (+ t1 u)) (/ v (+ t1 u))))
double code(double u, double v, double t1) {
	return (-t1 / (t1 + u)) * (v / (t1 + u));
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    code = (-t1 / (t1 + u)) * (v / (t1 + u))
end function
public static double code(double u, double v, double t1) {
	return (-t1 / (t1 + u)) * (v / (t1 + u));
}
def code(u, v, t1):
	return (-t1 / (t1 + u)) * (v / (t1 + u))
function code(u, v, t1)
	return Float64(Float64(Float64(-t1) / Float64(t1 + u)) * Float64(v / Float64(t1 + u)))
end
function tmp = code(u, v, t1)
	tmp = (-t1 / (t1 + u)) * (v / (t1 + u));
end
code[u_, v_, t1_] := N[(N[((-t1) / N[(t1 + u), $MachinePrecision]), $MachinePrecision] * N[(v / N[(t1 + u), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}
\end{array}
Derivation
  1. Initial program 73.1%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  2. Step-by-step derivation
    1. times-frac97.6%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    2. distribute-frac-neg97.6%

      \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
    3. distribute-neg-frac297.6%

      \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
    4. +-commutative97.6%

      \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
    5. distribute-neg-in97.6%

      \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
    6. unsub-neg97.6%

      \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
  3. Simplified97.6%

    \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
  4. Add Preprocessing
  5. Final simplification97.6%

    \[\leadsto \frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u} \]
  6. Add Preprocessing

Alternative 2: 89.9% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(-u\right) - t1\\ \mathbf{if}\;t1 \leq -3.7 \cdot 10^{+191}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{elif}\;t1 \leq 5.5 \cdot 10^{-242}:\\ \;\;\;\;t1 \cdot \frac{\frac{v}{t1 + u}}{t\_1}\\ \mathbf{elif}\;t1 \leq 2.65 \cdot 10^{+142}:\\ \;\;\;\;v \cdot \frac{t1}{t\_1 \cdot \left(t1 + u\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (let* ((t_1 (- (- u) t1)))
   (if (<= t1 -3.7e+191)
     (/ v (- t1))
     (if (<= t1 5.5e-242)
       (* t1 (/ (/ v (+ t1 u)) t_1))
       (if (<= t1 2.65e+142)
         (* v (/ t1 (* t_1 (+ t1 u))))
         (/ v (- (- t1) (* u 2.0))))))))
double code(double u, double v, double t1) {
	double t_1 = -u - t1;
	double tmp;
	if (t1 <= -3.7e+191) {
		tmp = v / -t1;
	} else if (t1 <= 5.5e-242) {
		tmp = t1 * ((v / (t1 + u)) / t_1);
	} else if (t1 <= 2.65e+142) {
		tmp = v * (t1 / (t_1 * (t1 + u)));
	} else {
		tmp = v / (-t1 - (u * 2.0));
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: t_1
    real(8) :: tmp
    t_1 = -u - t1
    if (t1 <= (-3.7d+191)) then
        tmp = v / -t1
    else if (t1 <= 5.5d-242) then
        tmp = t1 * ((v / (t1 + u)) / t_1)
    else if (t1 <= 2.65d+142) then
        tmp = v * (t1 / (t_1 * (t1 + u)))
    else
        tmp = v / (-t1 - (u * 2.0d0))
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double t_1 = -u - t1;
	double tmp;
	if (t1 <= -3.7e+191) {
		tmp = v / -t1;
	} else if (t1 <= 5.5e-242) {
		tmp = t1 * ((v / (t1 + u)) / t_1);
	} else if (t1 <= 2.65e+142) {
		tmp = v * (t1 / (t_1 * (t1 + u)));
	} else {
		tmp = v / (-t1 - (u * 2.0));
	}
	return tmp;
}
def code(u, v, t1):
	t_1 = -u - t1
	tmp = 0
	if t1 <= -3.7e+191:
		tmp = v / -t1
	elif t1 <= 5.5e-242:
		tmp = t1 * ((v / (t1 + u)) / t_1)
	elif t1 <= 2.65e+142:
		tmp = v * (t1 / (t_1 * (t1 + u)))
	else:
		tmp = v / (-t1 - (u * 2.0))
	return tmp
function code(u, v, t1)
	t_1 = Float64(Float64(-u) - t1)
	tmp = 0.0
	if (t1 <= -3.7e+191)
		tmp = Float64(v / Float64(-t1));
	elseif (t1 <= 5.5e-242)
		tmp = Float64(t1 * Float64(Float64(v / Float64(t1 + u)) / t_1));
	elseif (t1 <= 2.65e+142)
		tmp = Float64(v * Float64(t1 / Float64(t_1 * Float64(t1 + u))));
	else
		tmp = Float64(v / Float64(Float64(-t1) - Float64(u * 2.0)));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	t_1 = -u - t1;
	tmp = 0.0;
	if (t1 <= -3.7e+191)
		tmp = v / -t1;
	elseif (t1 <= 5.5e-242)
		tmp = t1 * ((v / (t1 + u)) / t_1);
	elseif (t1 <= 2.65e+142)
		tmp = v * (t1 / (t_1 * (t1 + u)));
	else
		tmp = v / (-t1 - (u * 2.0));
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := Block[{t$95$1 = N[((-u) - t1), $MachinePrecision]}, If[LessEqual[t1, -3.7e+191], N[(v / (-t1)), $MachinePrecision], If[LessEqual[t1, 5.5e-242], N[(t1 * N[(N[(v / N[(t1 + u), $MachinePrecision]), $MachinePrecision] / t$95$1), $MachinePrecision]), $MachinePrecision], If[LessEqual[t1, 2.65e+142], N[(v * N[(t1 / N[(t$95$1 * N[(t1 + u), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(v / N[((-t1) - N[(u * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(-u\right) - t1\\
\mathbf{if}\;t1 \leq -3.7 \cdot 10^{+191}:\\
\;\;\;\;\frac{v}{-t1}\\

\mathbf{elif}\;t1 \leq 5.5 \cdot 10^{-242}:\\
\;\;\;\;t1 \cdot \frac{\frac{v}{t1 + u}}{t\_1}\\

\mathbf{elif}\;t1 \leq 2.65 \cdot 10^{+142}:\\
\;\;\;\;v \cdot \frac{t1}{t\_1 \cdot \left(t1 + u\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t1 < -3.70000000000000019e191

    1. Initial program 51.5%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/53.1%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative53.1%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified53.1%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 100.0%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/100.0%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-1100.0%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified100.0%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]

    if -3.70000000000000019e191 < t1 < 5.4999999999999998e-242

    1. Initial program 79.2%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-/l*78.9%

        \[\leadsto \color{blue}{\left(-t1\right) \cdot \frac{v}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified78.9%

      \[\leadsto \color{blue}{\left(-t1\right) \cdot \frac{v}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. associate-/r*92.3%

        \[\leadsto \left(-t1\right) \cdot \color{blue}{\frac{\frac{v}{t1 + u}}{t1 + u}} \]
      2. div-inv92.2%

        \[\leadsto \left(-t1\right) \cdot \color{blue}{\left(\frac{v}{t1 + u} \cdot \frac{1}{t1 + u}\right)} \]
    6. Applied egg-rr92.2%

      \[\leadsto \left(-t1\right) \cdot \color{blue}{\left(\frac{v}{t1 + u} \cdot \frac{1}{t1 + u}\right)} \]
    7. Step-by-step derivation
      1. associate-*r/92.3%

        \[\leadsto \left(-t1\right) \cdot \color{blue}{\frac{\frac{v}{t1 + u} \cdot 1}{t1 + u}} \]
      2. *-rgt-identity92.3%

        \[\leadsto \left(-t1\right) \cdot \frac{\color{blue}{\frac{v}{t1 + u}}}{t1 + u} \]
    8. Simplified92.3%

      \[\leadsto \left(-t1\right) \cdot \color{blue}{\frac{\frac{v}{t1 + u}}{t1 + u}} \]

    if 5.4999999999999998e-242 < t1 < 2.65e142

    1. Initial program 85.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/91.5%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative91.5%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified91.5%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing

    if 2.65e142 < t1

    1. Initial program 36.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/37.7%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative37.7%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified37.7%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. associate-*r/36.0%

        \[\leadsto \color{blue}{\frac{v \cdot \left(-t1\right)}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
      2. *-commutative36.0%

        \[\leadsto \frac{\color{blue}{\left(-t1\right) \cdot v}}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
      3. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      4. frac-2neg99.9%

        \[\leadsto \color{blue}{\frac{-\left(-t1\right)}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      5. remove-double-neg99.9%

        \[\leadsto \frac{\color{blue}{t1}}{-\left(t1 + u\right)} \cdot \frac{v}{t1 + u} \]
      6. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      7. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      8. sub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
      9. clear-num99.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(-u\right) - t1}{t1}}} \cdot \frac{v}{t1 + u} \]
      10. frac-2neg99.9%

        \[\leadsto \frac{1}{\frac{\left(-u\right) - t1}{t1}} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
      11. frac-times94.1%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(-v\right)}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\left(t1 + u\right)\right)}} \]
      12. *-un-lft-identity94.1%

        \[\leadsto \frac{\color{blue}{-v}}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\left(t1 + u\right)\right)} \]
      13. +-commutative94.1%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\color{blue}{\left(u + t1\right)}\right)} \]
      14. distribute-neg-in94.1%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}} \]
      15. sub-neg94.1%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \color{blue}{\left(\left(-u\right) - t1\right)}} \]
    6. Applied egg-rr94.1%

      \[\leadsto \color{blue}{\frac{-v}{\frac{t1 + u}{t1} \cdot \left(t1 + u\right)}} \]
    7. Taylor expanded in u around 0 82.1%

      \[\leadsto \frac{-v}{\color{blue}{t1 + 2 \cdot u}} \]
    8. Step-by-step derivation
      1. *-commutative82.1%

        \[\leadsto \frac{-v}{t1 + \color{blue}{u \cdot 2}} \]
    9. Simplified82.1%

      \[\leadsto \frac{-v}{\color{blue}{t1 + u \cdot 2}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification91.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -3.7 \cdot 10^{+191}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{elif}\;t1 \leq 5.5 \cdot 10^{-242}:\\ \;\;\;\;t1 \cdot \frac{\frac{v}{t1 + u}}{\left(-u\right) - t1}\\ \mathbf{elif}\;t1 \leq 2.65 \cdot 10^{+142}:\\ \;\;\;\;v \cdot \frac{t1}{\left(\left(-u\right) - t1\right) \cdot \left(t1 + u\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 88.9% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -6.8 \cdot 10^{+153}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 2.15 \cdot 10^{+141}:\\ \;\;\;\;v \cdot \frac{t1}{\left(\left(-u\right) - t1\right) \cdot \left(t1 + u\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= t1 -6.8e+153)
   (/ v (- u t1))
   (if (<= t1 2.15e+141)
     (* v (/ t1 (* (- (- u) t1) (+ t1 u))))
     (/ v (- (- t1) (* u 2.0))))))
double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -6.8e+153) {
		tmp = v / (u - t1);
	} else if (t1 <= 2.15e+141) {
		tmp = v * (t1 / ((-u - t1) * (t1 + u)));
	} else {
		tmp = v / (-t1 - (u * 2.0));
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (t1 <= (-6.8d+153)) then
        tmp = v / (u - t1)
    else if (t1 <= 2.15d+141) then
        tmp = v * (t1 / ((-u - t1) * (t1 + u)))
    else
        tmp = v / (-t1 - (u * 2.0d0))
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -6.8e+153) {
		tmp = v / (u - t1);
	} else if (t1 <= 2.15e+141) {
		tmp = v * (t1 / ((-u - t1) * (t1 + u)));
	} else {
		tmp = v / (-t1 - (u * 2.0));
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if t1 <= -6.8e+153:
		tmp = v / (u - t1)
	elif t1 <= 2.15e+141:
		tmp = v * (t1 / ((-u - t1) * (t1 + u)))
	else:
		tmp = v / (-t1 - (u * 2.0))
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (t1 <= -6.8e+153)
		tmp = Float64(v / Float64(u - t1));
	elseif (t1 <= 2.15e+141)
		tmp = Float64(v * Float64(t1 / Float64(Float64(Float64(-u) - t1) * Float64(t1 + u))));
	else
		tmp = Float64(v / Float64(Float64(-t1) - Float64(u * 2.0)));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (t1 <= -6.8e+153)
		tmp = v / (u - t1);
	elseif (t1 <= 2.15e+141)
		tmp = v * (t1 / ((-u - t1) * (t1 + u)));
	else
		tmp = v / (-t1 - (u * 2.0));
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[t1, -6.8e+153], N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision], If[LessEqual[t1, 2.15e+141], N[(v * N[(t1 / N[(N[((-u) - t1), $MachinePrecision] * N[(t1 + u), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(v / N[((-t1) - N[(u * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -6.8 \cdot 10^{+153}:\\
\;\;\;\;\frac{v}{u - t1}\\

\mathbf{elif}\;t1 \leq 2.15 \cdot 10^{+141}:\\
\;\;\;\;v \cdot \frac{t1}{\left(\left(-u\right) - t1\right) \cdot \left(t1 + u\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t1 < -6.7999999999999995e153

    1. Initial program 45.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac100.0%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg100.0%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac2100.0%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative100.0%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in100.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg100.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 92.2%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. mul-1-neg92.2%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-neg-frac292.2%

        \[\leadsto \color{blue}{\frac{v}{-\left(t1 + u\right)}} \]
      3. +-commutative92.2%

        \[\leadsto \frac{v}{-\color{blue}{\left(u + t1\right)}} \]
      4. distribute-neg-in92.2%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \]
      5. sub-neg92.2%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) - t1}} \]
      6. add-sqr-sqrt37.9%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \]
      7. sqrt-unprod89.7%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1} \]
      8. sqr-neg89.7%

        \[\leadsto \frac{v}{\sqrt{\color{blue}{u \cdot u}} - t1} \]
      9. sqrt-unprod54.7%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1} \]
      10. add-sqr-sqrt92.4%

        \[\leadsto \frac{v}{\color{blue}{u} - t1} \]
    7. Applied egg-rr92.4%

      \[\leadsto \color{blue}{\frac{v}{u - t1}} \]

    if -6.7999999999999995e153 < t1 < 2.1499999999999999e141

    1. Initial program 85.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/87.6%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative87.6%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified87.6%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing

    if 2.1499999999999999e141 < t1

    1. Initial program 36.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/37.7%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative37.7%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified37.7%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. associate-*r/36.0%

        \[\leadsto \color{blue}{\frac{v \cdot \left(-t1\right)}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
      2. *-commutative36.0%

        \[\leadsto \frac{\color{blue}{\left(-t1\right) \cdot v}}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
      3. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      4. frac-2neg99.9%

        \[\leadsto \color{blue}{\frac{-\left(-t1\right)}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      5. remove-double-neg99.9%

        \[\leadsto \frac{\color{blue}{t1}}{-\left(t1 + u\right)} \cdot \frac{v}{t1 + u} \]
      6. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      7. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      8. sub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
      9. clear-num99.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(-u\right) - t1}{t1}}} \cdot \frac{v}{t1 + u} \]
      10. frac-2neg99.9%

        \[\leadsto \frac{1}{\frac{\left(-u\right) - t1}{t1}} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
      11. frac-times94.1%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(-v\right)}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\left(t1 + u\right)\right)}} \]
      12. *-un-lft-identity94.1%

        \[\leadsto \frac{\color{blue}{-v}}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\left(t1 + u\right)\right)} \]
      13. +-commutative94.1%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\color{blue}{\left(u + t1\right)}\right)} \]
      14. distribute-neg-in94.1%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}} \]
      15. sub-neg94.1%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \color{blue}{\left(\left(-u\right) - t1\right)}} \]
    6. Applied egg-rr94.1%

      \[\leadsto \color{blue}{\frac{-v}{\frac{t1 + u}{t1} \cdot \left(t1 + u\right)}} \]
    7. Taylor expanded in u around 0 82.1%

      \[\leadsto \frac{-v}{\color{blue}{t1 + 2 \cdot u}} \]
    8. Step-by-step derivation
      1. *-commutative82.1%

        \[\leadsto \frac{-v}{t1 + \color{blue}{u \cdot 2}} \]
    9. Simplified82.1%

      \[\leadsto \frac{-v}{\color{blue}{t1 + u \cdot 2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification87.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -6.8 \cdot 10^{+153}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 2.15 \cdot 10^{+141}:\\ \;\;\;\;v \cdot \frac{t1}{\left(\left(-u\right) - t1\right) \cdot \left(t1 + u\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 79.3% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -2.9 \cdot 10^{+34}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 4.1 \cdot 10^{-42}:\\ \;\;\;\;\frac{\frac{t1}{\frac{u}{v}}}{-u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= t1 -2.9e+34)
   (/ v (- u t1))
   (if (<= t1 4.1e-42) (/ (/ t1 (/ u v)) (- u)) (/ v (- (- t1) (* u 2.0))))))
double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -2.9e+34) {
		tmp = v / (u - t1);
	} else if (t1 <= 4.1e-42) {
		tmp = (t1 / (u / v)) / -u;
	} else {
		tmp = v / (-t1 - (u * 2.0));
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (t1 <= (-2.9d+34)) then
        tmp = v / (u - t1)
    else if (t1 <= 4.1d-42) then
        tmp = (t1 / (u / v)) / -u
    else
        tmp = v / (-t1 - (u * 2.0d0))
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -2.9e+34) {
		tmp = v / (u - t1);
	} else if (t1 <= 4.1e-42) {
		tmp = (t1 / (u / v)) / -u;
	} else {
		tmp = v / (-t1 - (u * 2.0));
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if t1 <= -2.9e+34:
		tmp = v / (u - t1)
	elif t1 <= 4.1e-42:
		tmp = (t1 / (u / v)) / -u
	else:
		tmp = v / (-t1 - (u * 2.0))
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (t1 <= -2.9e+34)
		tmp = Float64(v / Float64(u - t1));
	elseif (t1 <= 4.1e-42)
		tmp = Float64(Float64(t1 / Float64(u / v)) / Float64(-u));
	else
		tmp = Float64(v / Float64(Float64(-t1) - Float64(u * 2.0)));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (t1 <= -2.9e+34)
		tmp = v / (u - t1);
	elseif (t1 <= 4.1e-42)
		tmp = (t1 / (u / v)) / -u;
	else
		tmp = v / (-t1 - (u * 2.0));
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[t1, -2.9e+34], N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision], If[LessEqual[t1, 4.1e-42], N[(N[(t1 / N[(u / v), $MachinePrecision]), $MachinePrecision] / (-u)), $MachinePrecision], N[(v / N[((-t1) - N[(u * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -2.9 \cdot 10^{+34}:\\
\;\;\;\;\frac{v}{u - t1}\\

\mathbf{elif}\;t1 \leq 4.1 \cdot 10^{-42}:\\
\;\;\;\;\frac{\frac{t1}{\frac{u}{v}}}{-u}\\

\mathbf{else}:\\
\;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t1 < -2.9000000000000001e34

    1. Initial program 60.5%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg99.9%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac299.9%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 91.9%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. mul-1-neg91.9%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-neg-frac291.9%

        \[\leadsto \color{blue}{\frac{v}{-\left(t1 + u\right)}} \]
      3. +-commutative91.9%

        \[\leadsto \frac{v}{-\color{blue}{\left(u + t1\right)}} \]
      4. distribute-neg-in91.9%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \]
      5. sub-neg91.9%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) - t1}} \]
      6. add-sqr-sqrt39.0%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \]
      7. sqrt-unprod92.0%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1} \]
      8. sqr-neg92.0%

        \[\leadsto \frac{v}{\sqrt{\color{blue}{u \cdot u}} - t1} \]
      9. sqrt-unprod53.2%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1} \]
      10. add-sqr-sqrt92.2%

        \[\leadsto \frac{v}{\color{blue}{u} - t1} \]
    7. Applied egg-rr92.2%

      \[\leadsto \color{blue}{\frac{v}{u - t1}} \]

    if -2.9000000000000001e34 < t1 < 4.1000000000000001e-42

    1. Initial program 83.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac95.2%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg95.2%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac295.2%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative95.2%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in95.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg95.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified95.2%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around 0 81.6%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{u}} \]
    6. Step-by-step derivation
      1. associate-*l/83.3%

        \[\leadsto \color{blue}{\frac{t1 \cdot \frac{v}{u}}{\left(-u\right) - t1}} \]
      2. frac-2neg83.3%

        \[\leadsto \color{blue}{\frac{-t1 \cdot \frac{v}{u}}{-\left(\left(-u\right) - t1\right)}} \]
      3. clear-num83.3%

        \[\leadsto \frac{-t1 \cdot \color{blue}{\frac{1}{\frac{u}{v}}}}{-\left(\left(-u\right) - t1\right)} \]
      4. un-div-inv83.3%

        \[\leadsto \frac{-\color{blue}{\frac{t1}{\frac{u}{v}}}}{-\left(\left(-u\right) - t1\right)} \]
      5. neg-sub083.3%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{0 - \left(\left(-u\right) - t1\right)}} \]
      6. add-sqr-sqrt37.1%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1\right)} \]
      7. sqrt-unprod56.0%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1\right)} \]
      8. sqr-neg56.0%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\sqrt{\color{blue}{u \cdot u}} - t1\right)} \]
      9. sqrt-unprod21.6%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1\right)} \]
      10. add-sqr-sqrt43.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{u} - t1\right)} \]
      11. associate-+l-43.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\left(0 - u\right) + t1}} \]
      12. neg-sub043.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\left(-u\right)} + t1} \]
      13. add-sqr-sqrt22.1%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} + t1} \]
      14. sqrt-unprod63.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} + t1} \]
      15. sqr-neg63.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\sqrt{\color{blue}{u \cdot u}} + t1} \]
      16. sqrt-unprod46.0%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} + t1} \]
      17. add-sqr-sqrt83.3%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{u} + t1} \]
      18. +-commutative83.3%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{t1 + u}} \]
    7. Applied egg-rr83.3%

      \[\leadsto \color{blue}{\frac{-\frac{t1}{\frac{u}{v}}}{t1 + u}} \]
    8. Taylor expanded in t1 around 0 83.6%

      \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{u}} \]

    if 4.1000000000000001e-42 < t1

    1. Initial program 64.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/67.2%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative67.2%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified67.2%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. associate-*r/64.9%

        \[\leadsto \color{blue}{\frac{v \cdot \left(-t1\right)}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
      2. *-commutative64.9%

        \[\leadsto \frac{\color{blue}{\left(-t1\right) \cdot v}}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
      3. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      4. frac-2neg99.9%

        \[\leadsto \color{blue}{\frac{-\left(-t1\right)}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      5. remove-double-neg99.9%

        \[\leadsto \frac{\color{blue}{t1}}{-\left(t1 + u\right)} \cdot \frac{v}{t1 + u} \]
      6. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      7. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      8. sub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
      9. clear-num99.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(-u\right) - t1}{t1}}} \cdot \frac{v}{t1 + u} \]
      10. frac-2neg99.9%

        \[\leadsto \frac{1}{\frac{\left(-u\right) - t1}{t1}} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
      11. frac-times93.2%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(-v\right)}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\left(t1 + u\right)\right)}} \]
      12. *-un-lft-identity93.2%

        \[\leadsto \frac{\color{blue}{-v}}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\left(t1 + u\right)\right)} \]
      13. +-commutative93.2%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\color{blue}{\left(u + t1\right)}\right)} \]
      14. distribute-neg-in93.2%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}} \]
      15. sub-neg93.2%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \color{blue}{\left(\left(-u\right) - t1\right)}} \]
    6. Applied egg-rr93.2%

      \[\leadsto \color{blue}{\frac{-v}{\frac{t1 + u}{t1} \cdot \left(t1 + u\right)}} \]
    7. Taylor expanded in u around 0 77.0%

      \[\leadsto \frac{-v}{\color{blue}{t1 + 2 \cdot u}} \]
    8. Step-by-step derivation
      1. *-commutative77.0%

        \[\leadsto \frac{-v}{t1 + \color{blue}{u \cdot 2}} \]
    9. Simplified77.0%

      \[\leadsto \frac{-v}{\color{blue}{t1 + u \cdot 2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification83.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -2.9 \cdot 10^{+34}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 4.1 \cdot 10^{-42}:\\ \;\;\;\;\frac{\frac{t1}{\frac{u}{v}}}{-u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 78.5% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -2.15 \cdot 10^{+33}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 8.2 \cdot 10^{-43}:\\ \;\;\;\;\frac{t1}{u \cdot \frac{u}{-v}}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= t1 -2.15e+33)
   (/ v (- u t1))
   (if (<= t1 8.2e-43) (/ t1 (* u (/ u (- v)))) (/ v (- (- t1) (* u 2.0))))))
double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -2.15e+33) {
		tmp = v / (u - t1);
	} else if (t1 <= 8.2e-43) {
		tmp = t1 / (u * (u / -v));
	} else {
		tmp = v / (-t1 - (u * 2.0));
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (t1 <= (-2.15d+33)) then
        tmp = v / (u - t1)
    else if (t1 <= 8.2d-43) then
        tmp = t1 / (u * (u / -v))
    else
        tmp = v / (-t1 - (u * 2.0d0))
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -2.15e+33) {
		tmp = v / (u - t1);
	} else if (t1 <= 8.2e-43) {
		tmp = t1 / (u * (u / -v));
	} else {
		tmp = v / (-t1 - (u * 2.0));
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if t1 <= -2.15e+33:
		tmp = v / (u - t1)
	elif t1 <= 8.2e-43:
		tmp = t1 / (u * (u / -v))
	else:
		tmp = v / (-t1 - (u * 2.0))
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (t1 <= -2.15e+33)
		tmp = Float64(v / Float64(u - t1));
	elseif (t1 <= 8.2e-43)
		tmp = Float64(t1 / Float64(u * Float64(u / Float64(-v))));
	else
		tmp = Float64(v / Float64(Float64(-t1) - Float64(u * 2.0)));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (t1 <= -2.15e+33)
		tmp = v / (u - t1);
	elseif (t1 <= 8.2e-43)
		tmp = t1 / (u * (u / -v));
	else
		tmp = v / (-t1 - (u * 2.0));
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[t1, -2.15e+33], N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision], If[LessEqual[t1, 8.2e-43], N[(t1 / N[(u * N[(u / (-v)), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(v / N[((-t1) - N[(u * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -2.15 \cdot 10^{+33}:\\
\;\;\;\;\frac{v}{u - t1}\\

\mathbf{elif}\;t1 \leq 8.2 \cdot 10^{-43}:\\
\;\;\;\;\frac{t1}{u \cdot \frac{u}{-v}}\\

\mathbf{else}:\\
\;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t1 < -2.15000000000000014e33

    1. Initial program 60.5%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg99.9%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac299.9%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 91.9%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. mul-1-neg91.9%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-neg-frac291.9%

        \[\leadsto \color{blue}{\frac{v}{-\left(t1 + u\right)}} \]
      3. +-commutative91.9%

        \[\leadsto \frac{v}{-\color{blue}{\left(u + t1\right)}} \]
      4. distribute-neg-in91.9%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \]
      5. sub-neg91.9%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) - t1}} \]
      6. add-sqr-sqrt39.0%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \]
      7. sqrt-unprod92.0%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1} \]
      8. sqr-neg92.0%

        \[\leadsto \frac{v}{\sqrt{\color{blue}{u \cdot u}} - t1} \]
      9. sqrt-unprod53.2%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1} \]
      10. add-sqr-sqrt92.2%

        \[\leadsto \frac{v}{\color{blue}{u} - t1} \]
    7. Applied egg-rr92.2%

      \[\leadsto \color{blue}{\frac{v}{u - t1}} \]

    if -2.15000000000000014e33 < t1 < 8.1999999999999996e-43

    1. Initial program 83.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac95.2%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg95.2%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac295.2%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative95.2%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in95.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg95.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified95.2%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around 0 81.6%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{u}} \]
    6. Step-by-step derivation
      1. *-commutative81.6%

        \[\leadsto \color{blue}{\frac{v}{u} \cdot \frac{t1}{\left(-u\right) - t1}} \]
      2. clear-num81.6%

        \[\leadsto \color{blue}{\frac{1}{\frac{u}{v}}} \cdot \frac{t1}{\left(-u\right) - t1} \]
      3. frac-2neg81.6%

        \[\leadsto \frac{1}{\frac{u}{v}} \cdot \color{blue}{\frac{-t1}{-\left(\left(-u\right) - t1\right)}} \]
      4. frac-times82.4%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(-t1\right)}{\frac{u}{v} \cdot \left(-\left(\left(-u\right) - t1\right)\right)}} \]
      5. *-un-lft-identity82.4%

        \[\leadsto \frac{\color{blue}{-t1}}{\frac{u}{v} \cdot \left(-\left(\left(-u\right) - t1\right)\right)} \]
      6. neg-sub082.4%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\left(0 - \left(\left(-u\right) - t1\right)\right)}} \]
      7. add-sqr-sqrt36.4%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1\right)\right)} \]
      8. sqrt-unprod55.2%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1\right)\right)} \]
      9. sqr-neg55.2%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\sqrt{\color{blue}{u \cdot u}} - t1\right)\right)} \]
      10. sqrt-unprod21.6%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1\right)\right)} \]
      11. add-sqr-sqrt43.6%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\color{blue}{u} - t1\right)\right)} \]
      12. associate-+l-43.6%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\left(\left(0 - u\right) + t1\right)}} \]
      13. neg-sub043.6%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{\left(-u\right)} + t1\right)} \]
      14. add-sqr-sqrt22.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} + t1\right)} \]
      15. sqrt-unprod65.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} + t1\right)} \]
      16. sqr-neg65.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\sqrt{\color{blue}{u \cdot u}} + t1\right)} \]
      17. sqrt-unprod46.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{\sqrt{u} \cdot \sqrt{u}} + t1\right)} \]
      18. add-sqr-sqrt82.4%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{u} + t1\right)} \]
      19. +-commutative82.4%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\left(t1 + u\right)}} \]
    7. Applied egg-rr82.4%

      \[\leadsto \color{blue}{\frac{-t1}{\frac{u}{v} \cdot \left(t1 + u\right)}} \]
    8. Taylor expanded in t1 around 0 82.7%

      \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{u}} \]

    if 8.1999999999999996e-43 < t1

    1. Initial program 64.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/67.2%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative67.2%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified67.2%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. associate-*r/64.9%

        \[\leadsto \color{blue}{\frac{v \cdot \left(-t1\right)}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
      2. *-commutative64.9%

        \[\leadsto \frac{\color{blue}{\left(-t1\right) \cdot v}}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
      3. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      4. frac-2neg99.9%

        \[\leadsto \color{blue}{\frac{-\left(-t1\right)}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      5. remove-double-neg99.9%

        \[\leadsto \frac{\color{blue}{t1}}{-\left(t1 + u\right)} \cdot \frac{v}{t1 + u} \]
      6. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      7. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      8. sub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
      9. clear-num99.9%

        \[\leadsto \color{blue}{\frac{1}{\frac{\left(-u\right) - t1}{t1}}} \cdot \frac{v}{t1 + u} \]
      10. frac-2neg99.9%

        \[\leadsto \frac{1}{\frac{\left(-u\right) - t1}{t1}} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
      11. frac-times93.2%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(-v\right)}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\left(t1 + u\right)\right)}} \]
      12. *-un-lft-identity93.2%

        \[\leadsto \frac{\color{blue}{-v}}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\left(t1 + u\right)\right)} \]
      13. +-commutative93.2%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \left(-\color{blue}{\left(u + t1\right)}\right)} \]
      14. distribute-neg-in93.2%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}} \]
      15. sub-neg93.2%

        \[\leadsto \frac{-v}{\frac{\left(-u\right) - t1}{t1} \cdot \color{blue}{\left(\left(-u\right) - t1\right)}} \]
    6. Applied egg-rr93.2%

      \[\leadsto \color{blue}{\frac{-v}{\frac{t1 + u}{t1} \cdot \left(t1 + u\right)}} \]
    7. Taylor expanded in u around 0 77.0%

      \[\leadsto \frac{-v}{\color{blue}{t1 + 2 \cdot u}} \]
    8. Step-by-step derivation
      1. *-commutative77.0%

        \[\leadsto \frac{-v}{t1 + \color{blue}{u \cdot 2}} \]
    9. Simplified77.0%

      \[\leadsto \frac{-v}{\color{blue}{t1 + u \cdot 2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification83.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -2.15 \cdot 10^{+33}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 8.2 \cdot 10^{-43}:\\ \;\;\;\;\frac{t1}{u \cdot \frac{u}{-v}}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{\left(-t1\right) - u \cdot 2}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 78.5% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -1.9 \cdot 10^{+33}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 7.2 \cdot 10^{-42}:\\ \;\;\;\;\frac{t1}{u \cdot \frac{u}{-v}}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= t1 -1.9e+33)
   (/ v (- u t1))
   (if (<= t1 7.2e-42) (/ t1 (* u (/ u (- v)))) (/ (- v) (+ t1 u)))))
double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -1.9e+33) {
		tmp = v / (u - t1);
	} else if (t1 <= 7.2e-42) {
		tmp = t1 / (u * (u / -v));
	} else {
		tmp = -v / (t1 + u);
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (t1 <= (-1.9d+33)) then
        tmp = v / (u - t1)
    else if (t1 <= 7.2d-42) then
        tmp = t1 / (u * (u / -v))
    else
        tmp = -v / (t1 + u)
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -1.9e+33) {
		tmp = v / (u - t1);
	} else if (t1 <= 7.2e-42) {
		tmp = t1 / (u * (u / -v));
	} else {
		tmp = -v / (t1 + u);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if t1 <= -1.9e+33:
		tmp = v / (u - t1)
	elif t1 <= 7.2e-42:
		tmp = t1 / (u * (u / -v))
	else:
		tmp = -v / (t1 + u)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (t1 <= -1.9e+33)
		tmp = Float64(v / Float64(u - t1));
	elseif (t1 <= 7.2e-42)
		tmp = Float64(t1 / Float64(u * Float64(u / Float64(-v))));
	else
		tmp = Float64(Float64(-v) / Float64(t1 + u));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (t1 <= -1.9e+33)
		tmp = v / (u - t1);
	elseif (t1 <= 7.2e-42)
		tmp = t1 / (u * (u / -v));
	else
		tmp = -v / (t1 + u);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[t1, -1.9e+33], N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision], If[LessEqual[t1, 7.2e-42], N[(t1 / N[(u * N[(u / (-v)), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[((-v) / N[(t1 + u), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -1.9 \cdot 10^{+33}:\\
\;\;\;\;\frac{v}{u - t1}\\

\mathbf{elif}\;t1 \leq 7.2 \cdot 10^{-42}:\\
\;\;\;\;\frac{t1}{u \cdot \frac{u}{-v}}\\

\mathbf{else}:\\
\;\;\;\;\frac{-v}{t1 + u}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t1 < -1.90000000000000001e33

    1. Initial program 60.5%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg99.9%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac299.9%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 91.9%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. mul-1-neg91.9%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-neg-frac291.9%

        \[\leadsto \color{blue}{\frac{v}{-\left(t1 + u\right)}} \]
      3. +-commutative91.9%

        \[\leadsto \frac{v}{-\color{blue}{\left(u + t1\right)}} \]
      4. distribute-neg-in91.9%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \]
      5. sub-neg91.9%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) - t1}} \]
      6. add-sqr-sqrt39.0%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \]
      7. sqrt-unprod92.0%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1} \]
      8. sqr-neg92.0%

        \[\leadsto \frac{v}{\sqrt{\color{blue}{u \cdot u}} - t1} \]
      9. sqrt-unprod53.2%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1} \]
      10. add-sqr-sqrt92.2%

        \[\leadsto \frac{v}{\color{blue}{u} - t1} \]
    7. Applied egg-rr92.2%

      \[\leadsto \color{blue}{\frac{v}{u - t1}} \]

    if -1.90000000000000001e33 < t1 < 7.2000000000000004e-42

    1. Initial program 83.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac95.2%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg95.2%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac295.2%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative95.2%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in95.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg95.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified95.2%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around 0 81.6%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{u}} \]
    6. Step-by-step derivation
      1. *-commutative81.6%

        \[\leadsto \color{blue}{\frac{v}{u} \cdot \frac{t1}{\left(-u\right) - t1}} \]
      2. clear-num81.6%

        \[\leadsto \color{blue}{\frac{1}{\frac{u}{v}}} \cdot \frac{t1}{\left(-u\right) - t1} \]
      3. frac-2neg81.6%

        \[\leadsto \frac{1}{\frac{u}{v}} \cdot \color{blue}{\frac{-t1}{-\left(\left(-u\right) - t1\right)}} \]
      4. frac-times82.4%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(-t1\right)}{\frac{u}{v} \cdot \left(-\left(\left(-u\right) - t1\right)\right)}} \]
      5. *-un-lft-identity82.4%

        \[\leadsto \frac{\color{blue}{-t1}}{\frac{u}{v} \cdot \left(-\left(\left(-u\right) - t1\right)\right)} \]
      6. neg-sub082.4%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\left(0 - \left(\left(-u\right) - t1\right)\right)}} \]
      7. add-sqr-sqrt36.4%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1\right)\right)} \]
      8. sqrt-unprod55.2%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1\right)\right)} \]
      9. sqr-neg55.2%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\sqrt{\color{blue}{u \cdot u}} - t1\right)\right)} \]
      10. sqrt-unprod21.6%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1\right)\right)} \]
      11. add-sqr-sqrt43.6%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(0 - \left(\color{blue}{u} - t1\right)\right)} \]
      12. associate-+l-43.6%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\left(\left(0 - u\right) + t1\right)}} \]
      13. neg-sub043.6%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{\left(-u\right)} + t1\right)} \]
      14. add-sqr-sqrt22.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} + t1\right)} \]
      15. sqrt-unprod65.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} + t1\right)} \]
      16. sqr-neg65.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\sqrt{\color{blue}{u \cdot u}} + t1\right)} \]
      17. sqrt-unprod46.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{\sqrt{u} \cdot \sqrt{u}} + t1\right)} \]
      18. add-sqr-sqrt82.4%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \left(\color{blue}{u} + t1\right)} \]
      19. +-commutative82.4%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\left(t1 + u\right)}} \]
    7. Applied egg-rr82.4%

      \[\leadsto \color{blue}{\frac{-t1}{\frac{u}{v} \cdot \left(t1 + u\right)}} \]
    8. Taylor expanded in t1 around 0 82.7%

      \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{u}} \]

    if 7.2000000000000004e-42 < t1

    1. Initial program 64.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg99.9%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac299.9%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 76.3%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. clear-num76.2%

        \[\leadsto -1 \cdot \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
      2. un-div-inv76.2%

        \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    7. Applied egg-rr76.2%

      \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    8. Step-by-step derivation
      1. associate-/r/76.1%

        \[\leadsto \color{blue}{\frac{-1}{t1 + u} \cdot v} \]
    9. Simplified76.1%

      \[\leadsto \color{blue}{\frac{-1}{t1 + u} \cdot v} \]
    10. Taylor expanded in v around 0 76.3%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1 + u}} \]
    11. Step-by-step derivation
      1. mul-1-neg76.3%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-frac-neg76.3%

        \[\leadsto \color{blue}{\frac{-v}{t1 + u}} \]
    12. Simplified76.3%

      \[\leadsto \color{blue}{\frac{-v}{t1 + u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification83.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -1.9 \cdot 10^{+33}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 7.2 \cdot 10^{-42}:\\ \;\;\;\;\frac{t1}{u \cdot \frac{u}{-v}}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 79.2% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -1.65 \cdot 10^{+33}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 9.4 \cdot 10^{-42}:\\ \;\;\;\;\frac{t1}{-u} \cdot \frac{v}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= t1 -1.65e+33)
   (/ v (- u t1))
   (if (<= t1 9.4e-42) (* (/ t1 (- u)) (/ v u)) (/ (- v) (+ t1 u)))))
double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -1.65e+33) {
		tmp = v / (u - t1);
	} else if (t1 <= 9.4e-42) {
		tmp = (t1 / -u) * (v / u);
	} else {
		tmp = -v / (t1 + u);
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (t1 <= (-1.65d+33)) then
        tmp = v / (u - t1)
    else if (t1 <= 9.4d-42) then
        tmp = (t1 / -u) * (v / u)
    else
        tmp = -v / (t1 + u)
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -1.65e+33) {
		tmp = v / (u - t1);
	} else if (t1 <= 9.4e-42) {
		tmp = (t1 / -u) * (v / u);
	} else {
		tmp = -v / (t1 + u);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if t1 <= -1.65e+33:
		tmp = v / (u - t1)
	elif t1 <= 9.4e-42:
		tmp = (t1 / -u) * (v / u)
	else:
		tmp = -v / (t1 + u)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (t1 <= -1.65e+33)
		tmp = Float64(v / Float64(u - t1));
	elseif (t1 <= 9.4e-42)
		tmp = Float64(Float64(t1 / Float64(-u)) * Float64(v / u));
	else
		tmp = Float64(Float64(-v) / Float64(t1 + u));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (t1 <= -1.65e+33)
		tmp = v / (u - t1);
	elseif (t1 <= 9.4e-42)
		tmp = (t1 / -u) * (v / u);
	else
		tmp = -v / (t1 + u);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[t1, -1.65e+33], N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision], If[LessEqual[t1, 9.4e-42], N[(N[(t1 / (-u)), $MachinePrecision] * N[(v / u), $MachinePrecision]), $MachinePrecision], N[((-v) / N[(t1 + u), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -1.65 \cdot 10^{+33}:\\
\;\;\;\;\frac{v}{u - t1}\\

\mathbf{elif}\;t1 \leq 9.4 \cdot 10^{-42}:\\
\;\;\;\;\frac{t1}{-u} \cdot \frac{v}{u}\\

\mathbf{else}:\\
\;\;\;\;\frac{-v}{t1 + u}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t1 < -1.64999999999999988e33

    1. Initial program 60.5%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg99.9%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac299.9%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 91.9%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. mul-1-neg91.9%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-neg-frac291.9%

        \[\leadsto \color{blue}{\frac{v}{-\left(t1 + u\right)}} \]
      3. +-commutative91.9%

        \[\leadsto \frac{v}{-\color{blue}{\left(u + t1\right)}} \]
      4. distribute-neg-in91.9%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \]
      5. sub-neg91.9%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) - t1}} \]
      6. add-sqr-sqrt39.0%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \]
      7. sqrt-unprod92.0%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1} \]
      8. sqr-neg92.0%

        \[\leadsto \frac{v}{\sqrt{\color{blue}{u \cdot u}} - t1} \]
      9. sqrt-unprod53.2%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1} \]
      10. add-sqr-sqrt92.2%

        \[\leadsto \frac{v}{\color{blue}{u} - t1} \]
    7. Applied egg-rr92.2%

      \[\leadsto \color{blue}{\frac{v}{u - t1}} \]

    if -1.64999999999999988e33 < t1 < 9.4000000000000001e-42

    1. Initial program 83.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac95.2%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg95.2%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac295.2%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative95.2%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in95.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg95.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified95.2%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around 0 81.6%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{u}} \]
    6. Taylor expanded in t1 around 0 81.9%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{t1}{u}\right)} \cdot \frac{v}{u} \]
    7. Step-by-step derivation
      1. associate-*r/81.9%

        \[\leadsto \color{blue}{\frac{-1 \cdot t1}{u}} \cdot \frac{v}{u} \]
      2. mul-1-neg81.9%

        \[\leadsto \frac{\color{blue}{-t1}}{u} \cdot \frac{v}{u} \]
    8. Simplified81.9%

      \[\leadsto \color{blue}{\frac{-t1}{u}} \cdot \frac{v}{u} \]

    if 9.4000000000000001e-42 < t1

    1. Initial program 64.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac99.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg99.9%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac299.9%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative99.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg99.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 76.3%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. clear-num76.2%

        \[\leadsto -1 \cdot \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
      2. un-div-inv76.2%

        \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    7. Applied egg-rr76.2%

      \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    8. Step-by-step derivation
      1. associate-/r/76.1%

        \[\leadsto \color{blue}{\frac{-1}{t1 + u} \cdot v} \]
    9. Simplified76.1%

      \[\leadsto \color{blue}{\frac{-1}{t1 + u} \cdot v} \]
    10. Taylor expanded in v around 0 76.3%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1 + u}} \]
    11. Step-by-step derivation
      1. mul-1-neg76.3%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-frac-neg76.3%

        \[\leadsto \color{blue}{\frac{-v}{t1 + u}} \]
    12. Simplified76.3%

      \[\leadsto \color{blue}{\frac{-v}{t1 + u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification82.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -1.65 \cdot 10^{+33}:\\ \;\;\;\;\frac{v}{u - t1}\\ \mathbf{elif}\;t1 \leq 9.4 \cdot 10^{-42}:\\ \;\;\;\;\frac{t1}{-u} \cdot \frac{v}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 68.3% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -8.4 \cdot 10^{+58} \lor \neg \left(u \leq 1.3 \cdot 10^{+175}\right):\\ \;\;\;\;t1 \cdot \frac{\frac{v}{u}}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u - t1}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -8.4e+58) (not (<= u 1.3e+175)))
   (* t1 (/ (/ v u) u))
   (/ v (- u t1))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -8.4e+58) || !(u <= 1.3e+175)) {
		tmp = t1 * ((v / u) / u);
	} else {
		tmp = v / (u - t1);
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if ((u <= (-8.4d+58)) .or. (.not. (u <= 1.3d+175))) then
        tmp = t1 * ((v / u) / u)
    else
        tmp = v / (u - t1)
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -8.4e+58) || !(u <= 1.3e+175)) {
		tmp = t1 * ((v / u) / u);
	} else {
		tmp = v / (u - t1);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -8.4e+58) or not (u <= 1.3e+175):
		tmp = t1 * ((v / u) / u)
	else:
		tmp = v / (u - t1)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -8.4e+58) || !(u <= 1.3e+175))
		tmp = Float64(t1 * Float64(Float64(v / u) / u));
	else
		tmp = Float64(v / Float64(u - t1));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -8.4e+58) || ~((u <= 1.3e+175)))
		tmp = t1 * ((v / u) / u);
	else
		tmp = v / (u - t1);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -8.4e+58], N[Not[LessEqual[u, 1.3e+175]], $MachinePrecision]], N[(t1 * N[(N[(v / u), $MachinePrecision] / u), $MachinePrecision]), $MachinePrecision], N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -8.4 \cdot 10^{+58} \lor \neg \left(u \leq 1.3 \cdot 10^{+175}\right):\\
\;\;\;\;t1 \cdot \frac{\frac{v}{u}}{u}\\

\mathbf{else}:\\
\;\;\;\;\frac{v}{u - t1}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -8.40000000000000048e58 or 1.3e175 < u

    1. Initial program 79.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.0%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg97.0%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.0%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.0%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.0%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around 0 89.6%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{u}} \]
    6. Step-by-step derivation
      1. associate-*l/92.5%

        \[\leadsto \color{blue}{\frac{t1 \cdot \frac{v}{u}}{\left(-u\right) - t1}} \]
      2. frac-2neg92.5%

        \[\leadsto \color{blue}{\frac{-t1 \cdot \frac{v}{u}}{-\left(\left(-u\right) - t1\right)}} \]
      3. clear-num93.5%

        \[\leadsto \frac{-t1 \cdot \color{blue}{\frac{1}{\frac{u}{v}}}}{-\left(\left(-u\right) - t1\right)} \]
      4. un-div-inv93.5%

        \[\leadsto \frac{-\color{blue}{\frac{t1}{\frac{u}{v}}}}{-\left(\left(-u\right) - t1\right)} \]
      5. neg-sub093.5%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{0 - \left(\left(-u\right) - t1\right)}} \]
      6. add-sqr-sqrt63.3%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1\right)} \]
      7. sqrt-unprod78.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1\right)} \]
      8. sqr-neg78.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\sqrt{\color{blue}{u \cdot u}} - t1\right)} \]
      9. sqrt-unprod23.0%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1\right)} \]
      10. add-sqr-sqrt70.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{u} - t1\right)} \]
      11. associate-+l-70.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\left(0 - u\right) + t1}} \]
      12. neg-sub070.7%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\left(-u\right)} + t1} \]
      13. add-sqr-sqrt47.8%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} + t1} \]
      14. sqrt-unprod70.9%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} + t1} \]
      15. sqr-neg70.9%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\sqrt{\color{blue}{u \cdot u}} + t1} \]
      16. sqrt-unprod30.1%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} + t1} \]
      17. add-sqr-sqrt93.5%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{u} + t1} \]
      18. +-commutative93.5%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{t1 + u}} \]
    7. Applied egg-rr93.5%

      \[\leadsto \color{blue}{\frac{-\frac{t1}{\frac{u}{v}}}{t1 + u}} \]
    8. Taylor expanded in t1 around 0 93.6%

      \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{u}} \]
    9. Step-by-step derivation
      1. distribute-neg-frac93.6%

        \[\leadsto \frac{\color{blue}{\frac{-t1}{\frac{u}{v}}}}{u} \]
      2. associate-/r*84.7%

        \[\leadsto \color{blue}{\frac{-t1}{\frac{u}{v} \cdot u}} \]
      3. clear-num84.7%

        \[\leadsto \color{blue}{\frac{1}{\frac{\frac{u}{v} \cdot u}{-t1}}} \]
      4. associate-/r/84.6%

        \[\leadsto \color{blue}{\frac{1}{\frac{u}{v} \cdot u} \cdot \left(-t1\right)} \]
      5. associate-/r*84.7%

        \[\leadsto \color{blue}{\frac{\frac{1}{\frac{u}{v}}}{u}} \cdot \left(-t1\right) \]
      6. clear-num84.7%

        \[\leadsto \frac{\color{blue}{\frac{v}{u}}}{u} \cdot \left(-t1\right) \]
      7. add-sqr-sqrt48.1%

        \[\leadsto \frac{\frac{v}{u}}{u} \cdot \color{blue}{\left(\sqrt{-t1} \cdot \sqrt{-t1}\right)} \]
      8. sqrt-unprod61.5%

        \[\leadsto \frac{\frac{v}{u}}{u} \cdot \color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} \]
      9. sqr-neg61.5%

        \[\leadsto \frac{\frac{v}{u}}{u} \cdot \sqrt{\color{blue}{t1 \cdot t1}} \]
      10. sqrt-unprod31.9%

        \[\leadsto \frac{\frac{v}{u}}{u} \cdot \color{blue}{\left(\sqrt{t1} \cdot \sqrt{t1}\right)} \]
      11. add-sqr-sqrt70.7%

        \[\leadsto \frac{\frac{v}{u}}{u} \cdot \color{blue}{t1} \]
    10. Applied egg-rr70.7%

      \[\leadsto \color{blue}{\frac{\frac{v}{u}}{u} \cdot t1} \]

    if -8.40000000000000048e58 < u < 1.3e175

    1. Initial program 70.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg97.9%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.9%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.9%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.9%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.9%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 65.5%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. mul-1-neg65.5%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-neg-frac265.5%

        \[\leadsto \color{blue}{\frac{v}{-\left(t1 + u\right)}} \]
      3. +-commutative65.5%

        \[\leadsto \frac{v}{-\color{blue}{\left(u + t1\right)}} \]
      4. distribute-neg-in65.5%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \]
      5. sub-neg65.5%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) - t1}} \]
      6. add-sqr-sqrt23.2%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \]
      7. sqrt-unprod66.1%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1} \]
      8. sqr-neg66.1%

        \[\leadsto \frac{v}{\sqrt{\color{blue}{u \cdot u}} - t1} \]
      9. sqrt-unprod43.5%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1} \]
      10. add-sqr-sqrt66.6%

        \[\leadsto \frac{v}{\color{blue}{u} - t1} \]
    7. Applied egg-rr66.6%

      \[\leadsto \color{blue}{\frac{v}{u - t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification67.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -8.4 \cdot 10^{+58} \lor \neg \left(u \leq 1.3 \cdot 10^{+175}\right):\\ \;\;\;\;t1 \cdot \frac{\frac{v}{u}}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u - t1}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 68.5% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -9.5 \cdot 10^{+102} \lor \neg \left(u \leq 1.7 \cdot 10^{+168}\right):\\ \;\;\;\;\frac{v}{u} \cdot \frac{t1}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u - t1}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -9.5e+102) (not (<= u 1.7e+168)))
   (* (/ v u) (/ t1 u))
   (/ v (- u t1))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -9.5e+102) || !(u <= 1.7e+168)) {
		tmp = (v / u) * (t1 / u);
	} else {
		tmp = v / (u - t1);
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if ((u <= (-9.5d+102)) .or. (.not. (u <= 1.7d+168))) then
        tmp = (v / u) * (t1 / u)
    else
        tmp = v / (u - t1)
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -9.5e+102) || !(u <= 1.7e+168)) {
		tmp = (v / u) * (t1 / u);
	} else {
		tmp = v / (u - t1);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -9.5e+102) or not (u <= 1.7e+168):
		tmp = (v / u) * (t1 / u)
	else:
		tmp = v / (u - t1)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -9.5e+102) || !(u <= 1.7e+168))
		tmp = Float64(Float64(v / u) * Float64(t1 / u));
	else
		tmp = Float64(v / Float64(u - t1));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -9.5e+102) || ~((u <= 1.7e+168)))
		tmp = (v / u) * (t1 / u);
	else
		tmp = v / (u - t1);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -9.5e+102], N[Not[LessEqual[u, 1.7e+168]], $MachinePrecision]], N[(N[(v / u), $MachinePrecision] * N[(t1 / u), $MachinePrecision]), $MachinePrecision], N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -9.5 \cdot 10^{+102} \lor \neg \left(u \leq 1.7 \cdot 10^{+168}\right):\\
\;\;\;\;\frac{v}{u} \cdot \frac{t1}{u}\\

\mathbf{else}:\\
\;\;\;\;\frac{v}{u - t1}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -9.4999999999999992e102 or 1.70000000000000001e168 < u

    1. Initial program 77.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac96.6%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg96.6%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac296.6%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative96.6%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in96.6%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg96.6%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified96.6%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around 0 90.8%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{u}} \]
    6. Step-by-step derivation
      1. associate-*l/94.2%

        \[\leadsto \color{blue}{\frac{t1 \cdot \frac{v}{u}}{\left(-u\right) - t1}} \]
      2. frac-2neg94.2%

        \[\leadsto \color{blue}{\frac{-t1 \cdot \frac{v}{u}}{-\left(\left(-u\right) - t1\right)}} \]
      3. clear-num95.1%

        \[\leadsto \frac{-t1 \cdot \color{blue}{\frac{1}{\frac{u}{v}}}}{-\left(\left(-u\right) - t1\right)} \]
      4. un-div-inv95.2%

        \[\leadsto \frac{-\color{blue}{\frac{t1}{\frac{u}{v}}}}{-\left(\left(-u\right) - t1\right)} \]
      5. neg-sub095.2%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{0 - \left(\left(-u\right) - t1\right)}} \]
      6. add-sqr-sqrt60.9%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1\right)} \]
      7. sqrt-unprod78.4%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1\right)} \]
      8. sqr-neg78.4%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\sqrt{\color{blue}{u \cdot u}} - t1\right)} \]
      9. sqrt-unprod26.1%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1\right)} \]
      10. add-sqr-sqrt73.2%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{0 - \left(\color{blue}{u} - t1\right)} \]
      11. associate-+l-73.2%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\left(0 - u\right) + t1}} \]
      12. neg-sub073.2%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\left(-u\right)} + t1} \]
      13. add-sqr-sqrt47.2%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} + t1} \]
      14. sqrt-unprod73.4%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} + t1} \]
      15. sqr-neg73.4%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\sqrt{\color{blue}{u \cdot u}} + t1} \]
      16. sqrt-unprod34.1%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} + t1} \]
      17. add-sqr-sqrt95.2%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{u} + t1} \]
      18. +-commutative95.2%

        \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{t1 + u}} \]
    7. Applied egg-rr95.2%

      \[\leadsto \color{blue}{\frac{-\frac{t1}{\frac{u}{v}}}{t1 + u}} \]
    8. Taylor expanded in t1 around 0 95.3%

      \[\leadsto \frac{-\frac{t1}{\frac{u}{v}}}{\color{blue}{u}} \]
    9. Step-by-step derivation
      1. add-sqr-sqrt74.4%

        \[\leadsto \frac{\color{blue}{\sqrt{-\frac{t1}{\frac{u}{v}}} \cdot \sqrt{-\frac{t1}{\frac{u}{v}}}}}{u} \]
      2. sqrt-unprod84.4%

        \[\leadsto \frac{\color{blue}{\sqrt{\left(-\frac{t1}{\frac{u}{v}}\right) \cdot \left(-\frac{t1}{\frac{u}{v}}\right)}}}{u} \]
      3. sqr-neg84.4%

        \[\leadsto \frac{\sqrt{\color{blue}{\frac{t1}{\frac{u}{v}} \cdot \frac{t1}{\frac{u}{v}}}}}{u} \]
      4. sqrt-unprod56.0%

        \[\leadsto \frac{\color{blue}{\sqrt{\frac{t1}{\frac{u}{v}}} \cdot \sqrt{\frac{t1}{\frac{u}{v}}}}}{u} \]
      5. add-sqr-sqrt73.1%

        \[\leadsto \frac{\color{blue}{\frac{t1}{\frac{u}{v}}}}{u} \]
      6. associate-/r*73.3%

        \[\leadsto \color{blue}{\frac{t1}{\frac{u}{v} \cdot u}} \]
      7. *-un-lft-identity73.3%

        \[\leadsto \frac{\color{blue}{1 \cdot t1}}{\frac{u}{v} \cdot u} \]
      8. times-frac73.2%

        \[\leadsto \color{blue}{\frac{1}{\frac{u}{v}} \cdot \frac{t1}{u}} \]
      9. clear-num71.9%

        \[\leadsto \color{blue}{\frac{v}{u}} \cdot \frac{t1}{u} \]
    10. Applied egg-rr71.9%

      \[\leadsto \color{blue}{\frac{v}{u} \cdot \frac{t1}{u}} \]

    if -9.4999999999999992e102 < u < 1.70000000000000001e168

    1. Initial program 71.1%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac98.0%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg98.0%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac298.0%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative98.0%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in98.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg98.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified98.0%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 64.3%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. mul-1-neg64.3%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-neg-frac264.3%

        \[\leadsto \color{blue}{\frac{v}{-\left(t1 + u\right)}} \]
      3. +-commutative64.3%

        \[\leadsto \frac{v}{-\color{blue}{\left(u + t1\right)}} \]
      4. distribute-neg-in64.3%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \]
      5. sub-neg64.3%

        \[\leadsto \frac{v}{\color{blue}{\left(-u\right) - t1}} \]
      6. add-sqr-sqrt24.3%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \]
      7. sqrt-unprod64.9%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1} \]
      8. sqr-neg64.9%

        \[\leadsto \frac{v}{\sqrt{\color{blue}{u \cdot u}} - t1} \]
      9. sqrt-unprod41.1%

        \[\leadsto \frac{v}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1} \]
      10. add-sqr-sqrt65.3%

        \[\leadsto \frac{v}{\color{blue}{u} - t1} \]
    7. Applied egg-rr65.3%

      \[\leadsto \color{blue}{\frac{v}{u - t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification67.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -9.5 \cdot 10^{+102} \lor \neg \left(u \leq 1.7 \cdot 10^{+168}\right):\\ \;\;\;\;\frac{v}{u} \cdot \frac{t1}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u - t1}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 59.4% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -3 \cdot 10^{+164}:\\ \;\;\;\;\frac{1}{\frac{u}{v}}\\ \mathbf{elif}\;u \leq 1.3 \cdot 10^{+112}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= u -3e+164)
   (/ 1.0 (/ u v))
   (if (<= u 1.3e+112) (/ v (- t1)) (/ (- v) u))))
double code(double u, double v, double t1) {
	double tmp;
	if (u <= -3e+164) {
		tmp = 1.0 / (u / v);
	} else if (u <= 1.3e+112) {
		tmp = v / -t1;
	} else {
		tmp = -v / u;
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (u <= (-3d+164)) then
        tmp = 1.0d0 / (u / v)
    else if (u <= 1.3d+112) then
        tmp = v / -t1
    else
        tmp = -v / u
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (u <= -3e+164) {
		tmp = 1.0 / (u / v);
	} else if (u <= 1.3e+112) {
		tmp = v / -t1;
	} else {
		tmp = -v / u;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if u <= -3e+164:
		tmp = 1.0 / (u / v)
	elif u <= 1.3e+112:
		tmp = v / -t1
	else:
		tmp = -v / u
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (u <= -3e+164)
		tmp = Float64(1.0 / Float64(u / v));
	elseif (u <= 1.3e+112)
		tmp = Float64(v / Float64(-t1));
	else
		tmp = Float64(Float64(-v) / u);
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (u <= -3e+164)
		tmp = 1.0 / (u / v);
	elseif (u <= 1.3e+112)
		tmp = v / -t1;
	else
		tmp = -v / u;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[u, -3e+164], N[(1.0 / N[(u / v), $MachinePrecision]), $MachinePrecision], If[LessEqual[u, 1.3e+112], N[(v / (-t1)), $MachinePrecision], N[((-v) / u), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -3 \cdot 10^{+164}:\\
\;\;\;\;\frac{1}{\frac{u}{v}}\\

\mathbf{elif}\;u \leq 1.3 \cdot 10^{+112}:\\
\;\;\;\;\frac{v}{-t1}\\

\mathbf{else}:\\
\;\;\;\;\frac{-v}{u}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if u < -3.00000000000000001e164

    1. Initial program 79.5%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac95.1%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg95.1%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac295.1%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative95.1%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in95.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg95.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified95.1%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 47.6%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. associate-*r/47.6%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1 + u}} \]
      2. neg-mul-147.6%

        \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
      3. add-sqr-sqrt16.1%

        \[\leadsto \frac{\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}}{t1 + u} \]
      4. sqrt-unprod47.1%

        \[\leadsto \frac{\color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}}}{t1 + u} \]
      5. sqr-neg47.1%

        \[\leadsto \frac{\sqrt{\color{blue}{v \cdot v}}}{t1 + u} \]
      6. sqrt-unprod31.5%

        \[\leadsto \frac{\color{blue}{\sqrt{v} \cdot \sqrt{v}}}{t1 + u} \]
      7. add-sqr-sqrt47.6%

        \[\leadsto \frac{\color{blue}{v}}{t1 + u} \]
      8. clear-num49.4%

        \[\leadsto \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
    7. Applied egg-rr49.4%

      \[\leadsto \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
    8. Taylor expanded in t1 around 0 49.4%

      \[\leadsto \frac{1}{\color{blue}{\frac{u}{v}}} \]

    if -3.00000000000000001e164 < u < 1.3e112

    1. Initial program 71.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/75.3%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative75.3%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified75.3%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 62.2%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/62.2%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-162.2%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified62.2%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]

    if 1.3e112 < u

    1. Initial program 76.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.3%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg97.3%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.3%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.3%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.3%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.3%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.3%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 36.2%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Taylor expanded in t1 around 0 33.6%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{u}} \]
    7. Step-by-step derivation
      1. neg-mul-133.6%

        \[\leadsto \color{blue}{-\frac{v}{u}} \]
      2. distribute-neg-frac233.6%

        \[\leadsto \color{blue}{\frac{v}{-u}} \]
    8. Simplified33.6%

      \[\leadsto \color{blue}{\frac{v}{-u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification56.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -3 \cdot 10^{+164}:\\ \;\;\;\;\frac{1}{\frac{u}{v}}\\ \mathbf{elif}\;u \leq 1.3 \cdot 10^{+112}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 59.2% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -6.5 \cdot 10^{+163}:\\ \;\;\;\;\frac{v}{u}\\ \mathbf{elif}\;u \leq 1.05 \cdot 10^{+111}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= u -6.5e+163) (/ v u) (if (<= u 1.05e+111) (/ v (- t1)) (/ (- v) u))))
double code(double u, double v, double t1) {
	double tmp;
	if (u <= -6.5e+163) {
		tmp = v / u;
	} else if (u <= 1.05e+111) {
		tmp = v / -t1;
	} else {
		tmp = -v / u;
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (u <= (-6.5d+163)) then
        tmp = v / u
    else if (u <= 1.05d+111) then
        tmp = v / -t1
    else
        tmp = -v / u
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (u <= -6.5e+163) {
		tmp = v / u;
	} else if (u <= 1.05e+111) {
		tmp = v / -t1;
	} else {
		tmp = -v / u;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if u <= -6.5e+163:
		tmp = v / u
	elif u <= 1.05e+111:
		tmp = v / -t1
	else:
		tmp = -v / u
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (u <= -6.5e+163)
		tmp = Float64(v / u);
	elseif (u <= 1.05e+111)
		tmp = Float64(v / Float64(-t1));
	else
		tmp = Float64(Float64(-v) / u);
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (u <= -6.5e+163)
		tmp = v / u;
	elseif (u <= 1.05e+111)
		tmp = v / -t1;
	else
		tmp = -v / u;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[u, -6.5e+163], N[(v / u), $MachinePrecision], If[LessEqual[u, 1.05e+111], N[(v / (-t1)), $MachinePrecision], N[((-v) / u), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -6.5 \cdot 10^{+163}:\\
\;\;\;\;\frac{v}{u}\\

\mathbf{elif}\;u \leq 1.05 \cdot 10^{+111}:\\
\;\;\;\;\frac{v}{-t1}\\

\mathbf{else}:\\
\;\;\;\;\frac{-v}{u}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if u < -6.4999999999999998e163

    1. Initial program 79.5%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac95.1%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg95.1%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac295.1%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative95.1%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in95.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg95.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified95.1%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 47.6%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. associate-*r/47.6%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1 + u}} \]
      2. neg-mul-147.6%

        \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
      3. add-sqr-sqrt16.1%

        \[\leadsto \frac{\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}}{t1 + u} \]
      4. sqrt-unprod47.1%

        \[\leadsto \frac{\color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}}}{t1 + u} \]
      5. sqr-neg47.1%

        \[\leadsto \frac{\sqrt{\color{blue}{v \cdot v}}}{t1 + u} \]
      6. sqrt-unprod31.5%

        \[\leadsto \frac{\color{blue}{\sqrt{v} \cdot \sqrt{v}}}{t1 + u} \]
      7. add-sqr-sqrt47.6%

        \[\leadsto \frac{\color{blue}{v}}{t1 + u} \]
      8. clear-num49.4%

        \[\leadsto \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
    7. Applied egg-rr49.4%

      \[\leadsto \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
    8. Taylor expanded in t1 around 0 47.6%

      \[\leadsto \color{blue}{\frac{v}{u}} \]

    if -6.4999999999999998e163 < u < 1.04999999999999997e111

    1. Initial program 71.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/75.3%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative75.3%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified75.3%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 62.2%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/62.2%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-162.2%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified62.2%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]

    if 1.04999999999999997e111 < u

    1. Initial program 76.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.3%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg97.3%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.3%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.3%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.3%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.3%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.3%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 36.2%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Taylor expanded in t1 around 0 33.6%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{u}} \]
    7. Step-by-step derivation
      1. neg-mul-133.6%

        \[\leadsto \color{blue}{-\frac{v}{u}} \]
      2. distribute-neg-frac233.6%

        \[\leadsto \color{blue}{\frac{v}{-u}} \]
    8. Simplified33.6%

      \[\leadsto \color{blue}{\frac{v}{-u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification56.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -6.5 \cdot 10^{+163}:\\ \;\;\;\;\frac{v}{u}\\ \mathbf{elif}\;u \leq 1.05 \cdot 10^{+111}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 21.1% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -6.3 \cdot 10^{+128}:\\ \;\;\;\;\frac{v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= t1 -6.3e+128) (/ v t1) (/ (- v) u)))
double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -6.3e+128) {
		tmp = v / t1;
	} else {
		tmp = -v / u;
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (t1 <= (-6.3d+128)) then
        tmp = v / t1
    else
        tmp = -v / u
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -6.3e+128) {
		tmp = v / t1;
	} else {
		tmp = -v / u;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if t1 <= -6.3e+128:
		tmp = v / t1
	else:
		tmp = -v / u
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (t1 <= -6.3e+128)
		tmp = Float64(v / t1);
	else
		tmp = Float64(Float64(-v) / u);
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (t1 <= -6.3e+128)
		tmp = v / t1;
	else
		tmp = -v / u;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[t1, -6.3e+128], N[(v / t1), $MachinePrecision], N[((-v) / u), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -6.3 \cdot 10^{+128}:\\
\;\;\;\;\frac{v}{t1}\\

\mathbf{else}:\\
\;\;\;\;\frac{-v}{u}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t1 < -6.2999999999999999e128

    1. Initial program 52.7%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac100.0%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg100.0%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac2100.0%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative100.0%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in100.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg100.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 91.0%

      \[\leadsto \color{blue}{\left(\frac{u}{t1} - 1\right)} \cdot \frac{v}{t1 + u} \]
    6. Taylor expanded in u around inf 39.3%

      \[\leadsto \color{blue}{\frac{v}{t1}} \]

    if -6.2999999999999999e128 < t1

    1. Initial program 77.2%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.1%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg97.1%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.1%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.1%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.1%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 50.3%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Taylor expanded in t1 around 0 15.7%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{u}} \]
    7. Step-by-step derivation
      1. neg-mul-115.7%

        \[\leadsto \color{blue}{-\frac{v}{u}} \]
      2. distribute-neg-frac215.7%

        \[\leadsto \color{blue}{\frac{v}{-u}} \]
    8. Simplified15.7%

      \[\leadsto \color{blue}{\frac{v}{-u}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification19.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -6.3 \cdot 10^{+128}:\\ \;\;\;\;\frac{v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 20.7% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -2.3 \cdot 10^{+122}:\\ \;\;\;\;\frac{v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u}\\ \end{array} \end{array} \]
(FPCore (u v t1) :precision binary64 (if (<= t1 -2.3e+122) (/ v t1) (/ v u)))
double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -2.3e+122) {
		tmp = v / t1;
	} else {
		tmp = v / u;
	}
	return tmp;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    real(8) :: tmp
    if (t1 <= (-2.3d+122)) then
        tmp = v / t1
    else
        tmp = v / u
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -2.3e+122) {
		tmp = v / t1;
	} else {
		tmp = v / u;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if t1 <= -2.3e+122:
		tmp = v / t1
	else:
		tmp = v / u
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (t1 <= -2.3e+122)
		tmp = Float64(v / t1);
	else
		tmp = Float64(v / u);
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (t1 <= -2.3e+122)
		tmp = v / t1;
	else
		tmp = v / u;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[t1, -2.3e+122], N[(v / t1), $MachinePrecision], N[(v / u), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -2.3 \cdot 10^{+122}:\\
\;\;\;\;\frac{v}{t1}\\

\mathbf{else}:\\
\;\;\;\;\frac{v}{u}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t1 < -2.3000000000000001e122

    1. Initial program 54.8%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac100.0%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg100.0%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac2100.0%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative100.0%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in100.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg100.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 91.4%

      \[\leadsto \color{blue}{\left(\frac{u}{t1} - 1\right)} \cdot \frac{v}{t1 + u} \]
    6. Taylor expanded in u around inf 37.7%

      \[\leadsto \color{blue}{\frac{v}{t1}} \]

    if -2.3000000000000001e122 < t1

    1. Initial program 77.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.1%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg97.1%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.1%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.1%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.1%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 49.8%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. associate-*r/49.8%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1 + u}} \]
      2. neg-mul-149.8%

        \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
      3. add-sqr-sqrt29.2%

        \[\leadsto \frac{\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}}{t1 + u} \]
      4. sqrt-unprod33.3%

        \[\leadsto \frac{\color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}}}{t1 + u} \]
      5. sqr-neg33.3%

        \[\leadsto \frac{\sqrt{\color{blue}{v \cdot v}}}{t1 + u} \]
      6. sqrt-unprod9.5%

        \[\leadsto \frac{\color{blue}{\sqrt{v} \cdot \sqrt{v}}}{t1 + u} \]
      7. add-sqr-sqrt17.3%

        \[\leadsto \frac{\color{blue}{v}}{t1 + u} \]
      8. clear-num17.5%

        \[\leadsto \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
    7. Applied egg-rr17.5%

      \[\leadsto \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
    8. Taylor expanded in t1 around 0 15.8%

      \[\leadsto \color{blue}{\frac{v}{u}} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 14: 62.3% accurate, 2.4× speedup?

\[\begin{array}{l} \\ \frac{v}{u - t1} \end{array} \]
(FPCore (u v t1) :precision binary64 (/ v (- u t1)))
double code(double u, double v, double t1) {
	return v / (u - t1);
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    code = v / (u - t1)
end function
public static double code(double u, double v, double t1) {
	return v / (u - t1);
}
def code(u, v, t1):
	return v / (u - t1)
function code(u, v, t1)
	return Float64(v / Float64(u - t1))
end
function tmp = code(u, v, t1)
	tmp = v / (u - t1);
end
code[u_, v_, t1_] := N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{v}{u - t1}
\end{array}
Derivation
  1. Initial program 73.1%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  2. Step-by-step derivation
    1. times-frac97.6%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    2. distribute-frac-neg97.6%

      \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
    3. distribute-neg-frac297.6%

      \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
    4. +-commutative97.6%

      \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
    5. distribute-neg-in97.6%

      \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
    6. unsub-neg97.6%

      \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
  3. Simplified97.6%

    \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
  4. Add Preprocessing
  5. Taylor expanded in t1 around inf 57.2%

    \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
  6. Step-by-step derivation
    1. mul-1-neg57.2%

      \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
    2. distribute-neg-frac257.2%

      \[\leadsto \color{blue}{\frac{v}{-\left(t1 + u\right)}} \]
    3. +-commutative57.2%

      \[\leadsto \frac{v}{-\color{blue}{\left(u + t1\right)}} \]
    4. distribute-neg-in57.2%

      \[\leadsto \frac{v}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \]
    5. sub-neg57.2%

      \[\leadsto \frac{v}{\color{blue}{\left(-u\right) - t1}} \]
    6. add-sqr-sqrt26.0%

      \[\leadsto \frac{v}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \]
    7. sqrt-unprod66.1%

      \[\leadsto \frac{v}{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}} - t1} \]
    8. sqr-neg66.1%

      \[\leadsto \frac{v}{\sqrt{\color{blue}{u \cdot u}} - t1} \]
    9. sqrt-unprod32.0%

      \[\leadsto \frac{v}{\color{blue}{\sqrt{u} \cdot \sqrt{u}} - t1} \]
    10. add-sqr-sqrt57.9%

      \[\leadsto \frac{v}{\color{blue}{u} - t1} \]
  7. Applied egg-rr57.9%

    \[\leadsto \color{blue}{\frac{v}{u - t1}} \]
  8. Add Preprocessing

Alternative 15: 14.8% accurate, 4.0× speedup?

\[\begin{array}{l} \\ \frac{v}{t1} \end{array} \]
(FPCore (u v t1) :precision binary64 (/ v t1))
double code(double u, double v, double t1) {
	return v / t1;
}
real(8) function code(u, v, t1)
    real(8), intent (in) :: u
    real(8), intent (in) :: v
    real(8), intent (in) :: t1
    code = v / t1
end function
public static double code(double u, double v, double t1) {
	return v / t1;
}
def code(u, v, t1):
	return v / t1
function code(u, v, t1)
	return Float64(v / t1)
end
function tmp = code(u, v, t1)
	tmp = v / t1;
end
code[u_, v_, t1_] := N[(v / t1), $MachinePrecision]
\begin{array}{l}

\\
\frac{v}{t1}
\end{array}
Derivation
  1. Initial program 73.1%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  2. Step-by-step derivation
    1. times-frac97.6%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    2. distribute-frac-neg97.6%

      \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
    3. distribute-neg-frac297.6%

      \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
    4. +-commutative97.6%

      \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
    5. distribute-neg-in97.6%

      \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
    6. unsub-neg97.6%

      \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
  3. Simplified97.6%

    \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
  4. Add Preprocessing
  5. Taylor expanded in t1 around inf 51.0%

    \[\leadsto \color{blue}{\left(\frac{u}{t1} - 1\right)} \cdot \frac{v}{t1 + u} \]
  6. Taylor expanded in u around inf 11.7%

    \[\leadsto \color{blue}{\frac{v}{t1}} \]
  7. Add Preprocessing

Reproduce

?
herbie shell --seed 2024157 
(FPCore (u v t1)
  :name "Rosa's DopplerBench"
  :precision binary64
  (/ (* (- t1) v) (* (+ t1 u) (+ t1 u))))