Rosa's DopplerBench

Percentage Accurate: 71.5% → 98.2%
Time: 23.7s
Alternatives: 17
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 17 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: 71.5% 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: 98.2% accurate, 1.0× speedup?

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

\\
\frac{\frac{t1}{t1 + u} \cdot v}{\left(-u\right) - t1}
\end{array}
Derivation
  1. Initial program 70.1%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  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. Step-by-step derivation
    1. frac-2neg97.9%

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

      \[\leadsto \frac{-t1}{-\left(\left(-u\right) - t1\right)} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
    3. frac-times70.1%

      \[\leadsto \color{blue}{\frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(\left(-u\right) - t1\right)\right) \cdot \left(-\left(t1 + u\right)\right)}} \]
    4. sub-neg70.1%

      \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
    5. distribute-neg-in70.1%

      \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(-\left(u + t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
    6. +-commutative70.1%

      \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(-\color{blue}{\left(t1 + u\right)}\right)\right) \cdot \left(-\left(t1 + u\right)\right)} \]
    7. remove-double-neg70.1%

      \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\color{blue}{\left(t1 + u\right)} \cdot \left(-\left(t1 + u\right)\right)} \]
    8. frac-times97.9%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{-v}{-\left(t1 + u\right)}} \]
    9. associate-*r/99.1%

      \[\leadsto \color{blue}{\frac{\frac{-t1}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)}} \]
    10. add-sqr-sqrt46.7%

      \[\leadsto \frac{\frac{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    11. sqrt-unprod42.4%

      \[\leadsto \frac{\frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    12. sqr-neg42.4%

      \[\leadsto \frac{\frac{\sqrt{\color{blue}{t1 \cdot t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    13. sqrt-unprod19.8%

      \[\leadsto \frac{\frac{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    14. add-sqr-sqrt39.5%

      \[\leadsto \frac{\frac{\color{blue}{t1}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    15. add-sqr-sqrt25.2%

      \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{-\left(t1 + u\right)} \cdot \sqrt{-\left(t1 + u\right)}}} \]
    16. sqrt-unprod58.3%

      \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{\left(-\left(t1 + u\right)\right) \cdot \left(-\left(t1 + u\right)\right)}}} \]
  6. Applied egg-rr99.1%

    \[\leadsto \color{blue}{\frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{t1 + u}} \]
  7. Final simplification99.1%

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

Alternative 2: 85.7% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -1.12 \cdot 10^{-111} \lor \neg \left(u \leq 1.3 \cdot 10^{-123}\right):\\ \;\;\;\;t1 \cdot \frac{\frac{v}{t1 + u}}{\left(-u\right) - t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -1.12e-111) (not (<= u 1.3e-123)))
   (* t1 (/ (/ v (+ t1 u)) (- (- u) t1)))
   (/ (- v) (+ t1 u))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -1.12e-111) || !(u <= 1.3e-123)) {
		tmp = t1 * ((v / (t1 + u)) / (-u - t1));
	} 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 ((u <= (-1.12d-111)) .or. (.not. (u <= 1.3d-123))) then
        tmp = t1 * ((v / (t1 + u)) / (-u - t1))
    else
        tmp = -v / (t1 + u)
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -1.12e-111) || !(u <= 1.3e-123)) {
		tmp = t1 * ((v / (t1 + u)) / (-u - t1));
	} else {
		tmp = -v / (t1 + u);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -1.12e-111) or not (u <= 1.3e-123):
		tmp = t1 * ((v / (t1 + u)) / (-u - t1))
	else:
		tmp = -v / (t1 + u)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -1.12e-111) || !(u <= 1.3e-123))
		tmp = Float64(t1 * Float64(Float64(v / Float64(t1 + u)) / Float64(Float64(-u) - t1)));
	else
		tmp = Float64(Float64(-v) / Float64(t1 + u));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -1.12e-111) || ~((u <= 1.3e-123)))
		tmp = t1 * ((v / (t1 + u)) / (-u - t1));
	else
		tmp = -v / (t1 + u);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -1.12e-111], N[Not[LessEqual[u, 1.3e-123]], $MachinePrecision]], N[(t1 * N[(N[(v / N[(t1 + u), $MachinePrecision]), $MachinePrecision] / N[((-u) - t1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[((-v) / N[(t1 + u), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -1.12 \cdot 10^{-111} \lor \neg \left(u \leq 1.3 \cdot 10^{-123}\right):\\
\;\;\;\;t1 \cdot \frac{\frac{v}{t1 + u}}{\left(-u\right) - t1}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -1.12000000000000009e-111 or 1.29999999999999998e-123 < u

    1. Initial program 76.1%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-/l*77.9%

        \[\leadsto \color{blue}{\left(-t1\right) \cdot \frac{v}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
      2. distribute-lft-neg-out77.9%

        \[\leadsto \color{blue}{-t1 \cdot \frac{v}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
      3. distribute-rgt-neg-in77.9%

        \[\leadsto \color{blue}{t1 \cdot \left(-\frac{v}{\left(t1 + u\right) \cdot \left(t1 + u\right)}\right)} \]
      4. associate-/r*91.1%

        \[\leadsto t1 \cdot \left(-\color{blue}{\frac{\frac{v}{t1 + u}}{t1 + u}}\right) \]
      5. distribute-neg-frac291.1%

        \[\leadsto t1 \cdot \color{blue}{\frac{\frac{v}{t1 + u}}{-\left(t1 + u\right)}} \]
    3. Simplified91.1%

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

    if -1.12000000000000009e-111 < u < 1.29999999999999998e-123

    1. Initial program 57.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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. Step-by-step derivation
      1. frac-2neg100.0%

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

        \[\leadsto \frac{-t1}{-\left(\left(-u\right) - t1\right)} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
      3. frac-times57.3%

        \[\leadsto \color{blue}{\frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(\left(-u\right) - t1\right)\right) \cdot \left(-\left(t1 + u\right)\right)}} \]
      4. sub-neg57.3%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
      5. distribute-neg-in57.3%

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

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(-\color{blue}{\left(t1 + u\right)}\right)\right) \cdot \left(-\left(t1 + u\right)\right)} \]
      7. remove-double-neg57.3%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\color{blue}{\left(t1 + u\right)} \cdot \left(-\left(t1 + u\right)\right)} \]
      8. frac-times100.0%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{-v}{-\left(t1 + u\right)}} \]
      9. associate-*r/100.0%

        \[\leadsto \color{blue}{\frac{\frac{-t1}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)}} \]
      10. add-sqr-sqrt46.0%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      11. sqrt-unprod24.2%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      12. sqr-neg24.2%

        \[\leadsto \frac{\frac{\sqrt{\color{blue}{t1 \cdot t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      13. sqrt-unprod10.4%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      14. add-sqr-sqrt20.2%

        \[\leadsto \frac{\frac{\color{blue}{t1}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      15. add-sqr-sqrt9.9%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{-\left(t1 + u\right)} \cdot \sqrt{-\left(t1 + u\right)}}} \]
      16. sqrt-unprod43.9%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{\left(-\left(t1 + u\right)\right) \cdot \left(-\left(t1 + u\right)\right)}}} \]
    6. Applied egg-rr100.0%

      \[\leadsto \color{blue}{\frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{t1 + u}} \]
    7. Taylor expanded in t1 around inf 94.2%

      \[\leadsto \frac{\color{blue}{-1 \cdot v}}{t1 + u} \]
    8. Step-by-step derivation
      1. mul-1-neg94.2%

        \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
    9. Simplified94.2%

      \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification92.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -1.12 \cdot 10^{-111} \lor \neg \left(u \leq 1.3 \cdot 10^{-123}\right):\\ \;\;\;\;t1 \cdot \frac{\frac{v}{t1 + u}}{\left(-u\right) - t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 77.9% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -5 \cdot 10^{+18} \lor \neg \left(u \leq 10^{-29}\right):\\ \;\;\;\;\frac{\frac{t1}{\frac{u}{v}}}{t1 - u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -5e+18) (not (<= u 1e-29)))
   (/ (/ t1 (/ u v)) (- t1 u))
   (/ v (- t1))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -5e+18) || !(u <= 1e-29)) {
		tmp = (t1 / (u / v)) / (t1 - u);
	} else {
		tmp = v / -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 <= (-5d+18)) .or. (.not. (u <= 1d-29))) then
        tmp = (t1 / (u / v)) / (t1 - u)
    else
        tmp = v / -t1
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -5e+18) || !(u <= 1e-29)) {
		tmp = (t1 / (u / v)) / (t1 - u);
	} else {
		tmp = v / -t1;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -5e+18) or not (u <= 1e-29):
		tmp = (t1 / (u / v)) / (t1 - u)
	else:
		tmp = v / -t1
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -5e+18) || !(u <= 1e-29))
		tmp = Float64(Float64(t1 / Float64(u / v)) / Float64(t1 - u));
	else
		tmp = Float64(v / Float64(-t1));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -5e+18) || ~((u <= 1e-29)))
		tmp = (t1 / (u / v)) / (t1 - u);
	else
		tmp = v / -t1;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -5e+18], N[Not[LessEqual[u, 1e-29]], $MachinePrecision]], N[(N[(t1 / N[(u / v), $MachinePrecision]), $MachinePrecision] / N[(t1 - u), $MachinePrecision]), $MachinePrecision], N[(v / (-t1)), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -5 \cdot 10^{+18} \lor \neg \left(u \leq 10^{-29}\right):\\
\;\;\;\;\frac{\frac{t1}{\frac{u}{v}}}{t1 - u}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -5e18 or 9.99999999999999943e-30 < u

    1. Initial program 78.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t1 around 0 76.7%

      \[\leadsto \frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \color{blue}{u}} \]
    4. Taylor expanded in v around 0 76.7%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{u \cdot \left(t1 + u\right)}} \]
    5. Step-by-step derivation
      1. mul-1-neg76.7%

        \[\leadsto \color{blue}{-\frac{t1 \cdot v}{u \cdot \left(t1 + u\right)}} \]
      2. *-commutative76.7%

        \[\leadsto -\frac{\color{blue}{v \cdot t1}}{u \cdot \left(t1 + u\right)} \]
      3. times-frac84.1%

        \[\leadsto -\color{blue}{\frac{v}{u} \cdot \frac{t1}{t1 + u}} \]
      4. distribute-rgt-neg-in84.1%

        \[\leadsto \color{blue}{\frac{v}{u} \cdot \left(-\frac{t1}{t1 + u}\right)} \]
      5. distribute-neg-frac84.1%

        \[\leadsto \frac{v}{u} \cdot \color{blue}{\frac{-t1}{t1 + u}} \]
    6. Simplified84.1%

      \[\leadsto \color{blue}{\frac{v}{u} \cdot \frac{-t1}{t1 + u}} \]
    7. Step-by-step derivation
      1. *-commutative84.1%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{u}} \]
      2. frac-2neg84.1%

        \[\leadsto \color{blue}{\frac{-\left(-t1\right)}{-\left(t1 + u\right)}} \cdot \frac{v}{u} \]
      3. remove-double-neg84.1%

        \[\leadsto \frac{\color{blue}{t1}}{-\left(t1 + u\right)} \cdot \frac{v}{u} \]
      4. associate-*l/85.2%

        \[\leadsto \color{blue}{\frac{t1 \cdot \frac{v}{u}}{-\left(t1 + u\right)}} \]
      5. add-sqr-sqrt46.7%

        \[\leadsto \frac{\color{blue}{\left(\sqrt{t1} \cdot \sqrt{t1}\right)} \cdot \frac{v}{u}}{-\left(t1 + u\right)} \]
      6. sqrt-unprod65.5%

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

        \[\leadsto \frac{\sqrt{\color{blue}{\left(-t1\right) \cdot \left(-t1\right)}} \cdot \frac{v}{u}}{-\left(t1 + u\right)} \]
      8. sqrt-unprod29.1%

        \[\leadsto \frac{\color{blue}{\left(\sqrt{-t1} \cdot \sqrt{-t1}\right)} \cdot \frac{v}{u}}{-\left(t1 + u\right)} \]
      9. add-sqr-sqrt59.1%

        \[\leadsto \frac{\color{blue}{\left(-t1\right)} \cdot \frac{v}{u}}{-\left(t1 + u\right)} \]
      10. *-commutative59.1%

        \[\leadsto \frac{\color{blue}{\frac{v}{u} \cdot \left(-t1\right)}}{-\left(t1 + u\right)} \]
      11. clear-num59.9%

        \[\leadsto \frac{\color{blue}{\frac{1}{\frac{u}{v}}} \cdot \left(-t1\right)}{-\left(t1 + u\right)} \]
      12. associate-*l/59.9%

        \[\leadsto \frac{\color{blue}{\frac{1 \cdot \left(-t1\right)}{\frac{u}{v}}}}{-\left(t1 + u\right)} \]
      13. *-un-lft-identity59.9%

        \[\leadsto \frac{\frac{\color{blue}{-t1}}{\frac{u}{v}}}{-\left(t1 + u\right)} \]
      14. add-sqr-sqrt29.6%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}{\frac{u}{v}}}{-\left(t1 + u\right)} \]
      15. sqrt-unprod65.4%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}{\frac{u}{v}}}{-\left(t1 + u\right)} \]
      16. sqr-neg65.4%

        \[\leadsto \frac{\frac{\sqrt{\color{blue}{t1 \cdot t1}}}{\frac{u}{v}}}{-\left(t1 + u\right)} \]
      17. sqrt-unprod47.1%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}}}{\frac{u}{v}}}{-\left(t1 + u\right)} \]
      18. add-sqr-sqrt86.0%

        \[\leadsto \frac{\frac{\color{blue}{t1}}{\frac{u}{v}}}{-\left(t1 + u\right)} \]
      19. distribute-neg-in86.0%

        \[\leadsto \frac{\frac{t1}{\frac{u}{v}}}{\color{blue}{\left(-t1\right) + \left(-u\right)}} \]
      20. add-sqr-sqrt38.8%

        \[\leadsto \frac{\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}} + \left(-u\right)} \]
      21. sqrt-unprod84.9%

        \[\leadsto \frac{\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} + \left(-u\right)} \]
      22. sqr-neg84.9%

        \[\leadsto \frac{\frac{t1}{\frac{u}{v}}}{\sqrt{\color{blue}{t1 \cdot t1}} + \left(-u\right)} \]
      23. sqrt-unprod47.0%

        \[\leadsto \frac{\frac{t1}{\frac{u}{v}}}{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}} + \left(-u\right)} \]
      24. add-sqr-sqrt86.1%

        \[\leadsto \frac{\frac{t1}{\frac{u}{v}}}{\color{blue}{t1} + \left(-u\right)} \]
    8. Applied egg-rr86.1%

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

    if -5e18 < u < 9.99999999999999943e-30

    1. Initial program 61.7%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 inf 82.2%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/82.2%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-182.2%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified82.2%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification84.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -5 \cdot 10^{+18} \lor \neg \left(u \leq 10^{-29}\right):\\ \;\;\;\;\frac{\frac{t1}{\frac{u}{v}}}{t1 - u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 76.8% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -70000000000000 \lor \neg \left(u \leq 1.32 \cdot 10^{-52}\right):\\ \;\;\;\;\frac{v \cdot \frac{t1}{u}}{t1 - u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -70000000000000.0) (not (<= u 1.32e-52)))
   (/ (* v (/ t1 u)) (- t1 u))
   (/ v (- t1))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -70000000000000.0) || !(u <= 1.32e-52)) {
		tmp = (v * (t1 / u)) / (t1 - u);
	} else {
		tmp = v / -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 <= (-70000000000000.0d0)) .or. (.not. (u <= 1.32d-52))) then
        tmp = (v * (t1 / u)) / (t1 - u)
    else
        tmp = v / -t1
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -70000000000000.0) || !(u <= 1.32e-52)) {
		tmp = (v * (t1 / u)) / (t1 - u);
	} else {
		tmp = v / -t1;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -70000000000000.0) or not (u <= 1.32e-52):
		tmp = (v * (t1 / u)) / (t1 - u)
	else:
		tmp = v / -t1
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -70000000000000.0) || !(u <= 1.32e-52))
		tmp = Float64(Float64(v * Float64(t1 / u)) / Float64(t1 - u));
	else
		tmp = Float64(v / Float64(-t1));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -70000000000000.0) || ~((u <= 1.32e-52)))
		tmp = (v * (t1 / u)) / (t1 - u);
	else
		tmp = v / -t1;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -70000000000000.0], N[Not[LessEqual[u, 1.32e-52]], $MachinePrecision]], N[(N[(v * N[(t1 / u), $MachinePrecision]), $MachinePrecision] / N[(t1 - u), $MachinePrecision]), $MachinePrecision], N[(v / (-t1)), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -70000000000000 \lor \neg \left(u \leq 1.32 \cdot 10^{-52}\right):\\
\;\;\;\;\frac{v \cdot \frac{t1}{u}}{t1 - u}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -7e13 or 1.32000000000000002e-52 < u

    1. Initial program 79.2%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t1 around 0 76.3%

      \[\leadsto \frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \color{blue}{u}} \]
    4. Step-by-step derivation
      1. associate-/l*77.8%

        \[\leadsto \color{blue}{\left(-t1\right) \cdot \frac{v}{\left(t1 + u\right) \cdot u}} \]
      2. add-sqr-sqrt35.1%

        \[\leadsto \color{blue}{\left(\sqrt{-t1} \cdot \sqrt{-t1}\right)} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      3. sqrt-unprod55.4%

        \[\leadsto \color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      4. sqr-neg55.4%

        \[\leadsto \sqrt{\color{blue}{t1 \cdot t1}} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      5. sqrt-unprod30.6%

        \[\leadsto \color{blue}{\left(\sqrt{t1} \cdot \sqrt{t1}\right)} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      6. add-sqr-sqrt60.5%

        \[\leadsto \color{blue}{t1} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      7. associate-/r*60.5%

        \[\leadsto t1 \cdot \color{blue}{\frac{\frac{v}{t1 + u}}{u}} \]
    5. Applied egg-rr60.5%

      \[\leadsto \color{blue}{t1 \cdot \frac{\frac{v}{t1 + u}}{u}} \]
    6. Step-by-step derivation
      1. associate-/l/60.5%

        \[\leadsto t1 \cdot \color{blue}{\frac{v}{u \cdot \left(t1 + u\right)}} \]
      2. associate-/l*59.1%

        \[\leadsto \color{blue}{\frac{t1 \cdot v}{u \cdot \left(t1 + u\right)}} \]
      3. *-commutative59.1%

        \[\leadsto \frac{\color{blue}{v \cdot t1}}{u \cdot \left(t1 + u\right)} \]
      4. associate-*r/59.5%

        \[\leadsto \color{blue}{v \cdot \frac{t1}{u \cdot \left(t1 + u\right)}} \]
      5. associate-/r*58.3%

        \[\leadsto v \cdot \color{blue}{\frac{\frac{t1}{u}}{t1 + u}} \]
    7. Simplified58.3%

      \[\leadsto \color{blue}{v \cdot \frac{\frac{t1}{u}}{t1 + u}} \]
    8. Step-by-step derivation
      1. add-sqr-sqrt57.1%

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

        \[\leadsto \color{blue}{\sqrt{\left(v \cdot \frac{\frac{t1}{u}}{t1 + u}\right) \cdot \left(v \cdot \frac{\frac{t1}{u}}{t1 + u}\right)}} \]
      3. swap-sqr54.9%

        \[\leadsto \sqrt{\color{blue}{\left(v \cdot v\right) \cdot \left(\frac{\frac{t1}{u}}{t1 + u} \cdot \frac{\frac{t1}{u}}{t1 + u}\right)}} \]
      4. sqr-neg54.9%

        \[\leadsto \sqrt{\left(v \cdot v\right) \cdot \color{blue}{\left(\left(-\frac{\frac{t1}{u}}{t1 + u}\right) \cdot \left(-\frac{\frac{t1}{u}}{t1 + u}\right)\right)}} \]
      5. associate-/l/54.9%

        \[\leadsto \sqrt{\left(v \cdot v\right) \cdot \left(\left(-\color{blue}{\frac{t1}{\left(t1 + u\right) \cdot u}}\right) \cdot \left(-\frac{\frac{t1}{u}}{t1 + u}\right)\right)} \]
      6. distribute-frac-neg54.9%

        \[\leadsto \sqrt{\left(v \cdot v\right) \cdot \left(\color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot u}} \cdot \left(-\frac{\frac{t1}{u}}{t1 + u}\right)\right)} \]
      7. associate-/l/54.9%

        \[\leadsto \sqrt{\left(v \cdot v\right) \cdot \left(\frac{-t1}{\left(t1 + u\right) \cdot u} \cdot \left(-\color{blue}{\frac{t1}{\left(t1 + u\right) \cdot u}}\right)\right)} \]
      8. distribute-frac-neg54.9%

        \[\leadsto \sqrt{\left(v \cdot v\right) \cdot \left(\frac{-t1}{\left(t1 + u\right) \cdot u} \cdot \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot u}}\right)} \]
      9. swap-sqr66.0%

        \[\leadsto \sqrt{\color{blue}{\left(v \cdot \frac{-t1}{\left(t1 + u\right) \cdot u}\right) \cdot \left(v \cdot \frac{-t1}{\left(t1 + u\right) \cdot u}\right)}} \]
      10. sqrt-unprod65.7%

        \[\leadsto \color{blue}{\sqrt{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot u}} \cdot \sqrt{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot u}}} \]
      11. add-sqr-sqrt75.6%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot u}} \]
      12. distribute-frac-neg75.6%

        \[\leadsto v \cdot \color{blue}{\left(-\frac{t1}{\left(t1 + u\right) \cdot u}\right)} \]
      13. distribute-frac-neg275.6%

        \[\leadsto v \cdot \color{blue}{\frac{t1}{-\left(t1 + u\right) \cdot u}} \]
      14. associate-*r/76.3%

        \[\leadsto \color{blue}{\frac{v \cdot t1}{-\left(t1 + u\right) \cdot u}} \]
    9. Applied egg-rr76.4%

      \[\leadsto \color{blue}{\frac{t1 \cdot v}{u \cdot \left(t1 - u\right)}} \]
    10. Step-by-step derivation
      1. associate-/r*79.8%

        \[\leadsto \color{blue}{\frac{\frac{t1 \cdot v}{u}}{t1 - u}} \]
      2. *-commutative79.8%

        \[\leadsto \frac{\frac{\color{blue}{v \cdot t1}}{u}}{t1 - u} \]
      3. associate-*r/83.6%

        \[\leadsto \frac{\color{blue}{v \cdot \frac{t1}{u}}}{t1 - u} \]
    11. Simplified83.6%

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

    if -7e13 < u < 1.32000000000000002e-52

    1. Initial program 61.1%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.7%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg97.7%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.7%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.7%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.7%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.7%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.7%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 82.7%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/82.7%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-182.7%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified82.7%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -70000000000000 \lor \neg \left(u \leq 1.32 \cdot 10^{-52}\right):\\ \;\;\;\;\frac{v \cdot \frac{t1}{u}}{t1 - u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 76.9% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -4.9 \cdot 10^{+15} \lor \neg \left(u \leq 4.1 \cdot 10^{-31}\right):\\ \;\;\;\;\frac{t1}{u} \cdot \frac{v}{-u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -4.9e+15) (not (<= u 4.1e-31)))
   (* (/ t1 u) (/ v (- u)))
   (/ v (- t1))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -4.9e+15) || !(u <= 4.1e-31)) {
		tmp = (t1 / u) * (v / -u);
	} else {
		tmp = v / -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 <= (-4.9d+15)) .or. (.not. (u <= 4.1d-31))) then
        tmp = (t1 / u) * (v / -u)
    else
        tmp = v / -t1
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -4.9e+15) || !(u <= 4.1e-31)) {
		tmp = (t1 / u) * (v / -u);
	} else {
		tmp = v / -t1;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -4.9e+15) or not (u <= 4.1e-31):
		tmp = (t1 / u) * (v / -u)
	else:
		tmp = v / -t1
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -4.9e+15) || !(u <= 4.1e-31))
		tmp = Float64(Float64(t1 / u) * Float64(v / Float64(-u)));
	else
		tmp = Float64(v / Float64(-t1));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -4.9e+15) || ~((u <= 4.1e-31)))
		tmp = (t1 / u) * (v / -u);
	else
		tmp = v / -t1;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -4.9e+15], N[Not[LessEqual[u, 4.1e-31]], $MachinePrecision]], N[(N[(t1 / u), $MachinePrecision] * N[(v / (-u)), $MachinePrecision]), $MachinePrecision], N[(v / (-t1)), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -4.9 \cdot 10^{+15} \lor \neg \left(u \leq 4.1 \cdot 10^{-31}\right):\\
\;\;\;\;\frac{t1}{u} \cdot \frac{v}{-u}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -4.9e15 or 4.0999999999999996e-31 < u

    1. Initial program 78.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t1 around 0 76.7%

      \[\leadsto \frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \color{blue}{u}} \]
    4. Taylor expanded in v around 0 76.7%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{u \cdot \left(t1 + u\right)}} \]
    5. Step-by-step derivation
      1. mul-1-neg76.7%

        \[\leadsto \color{blue}{-\frac{t1 \cdot v}{u \cdot \left(t1 + u\right)}} \]
      2. *-commutative76.7%

        \[\leadsto -\frac{\color{blue}{v \cdot t1}}{u \cdot \left(t1 + u\right)} \]
      3. times-frac84.1%

        \[\leadsto -\color{blue}{\frac{v}{u} \cdot \frac{t1}{t1 + u}} \]
      4. distribute-rgt-neg-in84.1%

        \[\leadsto \color{blue}{\frac{v}{u} \cdot \left(-\frac{t1}{t1 + u}\right)} \]
      5. distribute-neg-frac84.1%

        \[\leadsto \frac{v}{u} \cdot \color{blue}{\frac{-t1}{t1 + u}} \]
    6. Simplified84.1%

      \[\leadsto \color{blue}{\frac{v}{u} \cdot \frac{-t1}{t1 + u}} \]
    7. Taylor expanded in t1 around 0 83.5%

      \[\leadsto \frac{v}{u} \cdot \color{blue}{\left(-1 \cdot \frac{t1}{u}\right)} \]
    8. Step-by-step derivation
      1. associate-*r/83.5%

        \[\leadsto \frac{v}{u} \cdot \color{blue}{\frac{-1 \cdot t1}{u}} \]
      2. mul-1-neg83.5%

        \[\leadsto \frac{v}{u} \cdot \frac{\color{blue}{-t1}}{u} \]
    9. Simplified83.5%

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

    if -4.9e15 < u < 4.0999999999999996e-31

    1. Initial program 61.7%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 inf 82.2%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/82.2%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-182.2%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified82.2%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification82.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -4.9 \cdot 10^{+15} \lor \neg \left(u \leq 4.1 \cdot 10^{-31}\right):\\ \;\;\;\;\frac{t1}{u} \cdot \frac{v}{-u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 75.7% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -4.8 \cdot 10^{-6}:\\ \;\;\;\;\frac{-1}{\frac{t1 + u}{v}}\\ \mathbf{elif}\;t1 \leq 1.1 \cdot 10^{-77}:\\ \;\;\;\;v \cdot \frac{t1}{u \cdot \left(-u\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u - t1}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= t1 -4.8e-6)
   (/ -1.0 (/ (+ t1 u) v))
   (if (<= t1 1.1e-77) (* v (/ t1 (* u (- u)))) (/ v (- u t1)))))
double code(double u, double v, double t1) {
	double tmp;
	if (t1 <= -4.8e-6) {
		tmp = -1.0 / ((t1 + u) / v);
	} else if (t1 <= 1.1e-77) {
		tmp = v * (t1 / (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 (t1 <= (-4.8d-6)) then
        tmp = (-1.0d0) / ((t1 + u) / v)
    else if (t1 <= 1.1d-77) then
        tmp = v * (t1 / (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 (t1 <= -4.8e-6) {
		tmp = -1.0 / ((t1 + u) / v);
	} else if (t1 <= 1.1e-77) {
		tmp = v * (t1 / (u * -u));
	} else {
		tmp = v / (u - t1);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if t1 <= -4.8e-6:
		tmp = -1.0 / ((t1 + u) / v)
	elif t1 <= 1.1e-77:
		tmp = v * (t1 / (u * -u))
	else:
		tmp = v / (u - t1)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (t1 <= -4.8e-6)
		tmp = Float64(-1.0 / Float64(Float64(t1 + u) / v));
	elseif (t1 <= 1.1e-77)
		tmp = Float64(v * Float64(t1 / Float64(u * Float64(-u))));
	else
		tmp = Float64(v / Float64(u - t1));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (t1 <= -4.8e-6)
		tmp = -1.0 / ((t1 + u) / v);
	elseif (t1 <= 1.1e-77)
		tmp = v * (t1 / (u * -u));
	else
		tmp = v / (u - t1);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[t1, -4.8e-6], N[(-1.0 / N[(N[(t1 + u), $MachinePrecision] / v), $MachinePrecision]), $MachinePrecision], If[LessEqual[t1, 1.1e-77], N[(v * N[(t1 / N[(u * (-u)), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(v / N[(u - t1), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -4.8 \cdot 10^{-6}:\\
\;\;\;\;\frac{-1}{\frac{t1 + u}{v}}\\

\mathbf{elif}\;t1 \leq 1.1 \cdot 10^{-77}:\\
\;\;\;\;v \cdot \frac{t1}{u \cdot \left(-u\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t1 < -4.7999999999999998e-6

    1. Initial program 57.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 84.7%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. clear-num84.7%

        \[\leadsto -1 \cdot \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
      2. un-div-inv84.7%

        \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    7. Applied egg-rr84.7%

      \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]

    if -4.7999999999999998e-6 < t1 < 1.10000000000000003e-77

    1. Initial program 82.8%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-*l/87.1%

        \[\leadsto \color{blue}{\frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \cdot v} \]
      2. *-commutative87.1%

        \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    3. Simplified87.1%

      \[\leadsto \color{blue}{v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \left(t1 + u\right)}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around 0 75.7%

      \[\leadsto v \cdot \frac{-t1}{\left(t1 + u\right) \cdot \color{blue}{u}} \]
    6. Taylor expanded in t1 around 0 78.0%

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

    if 1.10000000000000003e-77 < t1

    1. Initial program 66.0%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 77.7%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{t1}} \]
    6. Step-by-step derivation
      1. add-sqr-sqrt44.8%

        \[\leadsto \frac{t1}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \cdot \frac{v}{t1} \]
      2. add-sqr-sqrt44.6%

        \[\leadsto \frac{t1}{\sqrt{-u} \cdot \sqrt{-u} - \color{blue}{\sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
      3. difference-of-squares44.6%

        \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{-u} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
      4. add-sqr-sqrt44.6%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      5. sqrt-unprod46.9%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      6. sqr-neg46.9%

        \[\leadsto \frac{t1}{\left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      7. sqrt-unprod0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      8. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{u}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      9. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      10. sqrt-unprod32.7%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      11. sqr-neg32.7%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      12. sqrt-unprod32.3%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      13. add-sqr-sqrt32.3%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{u}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    7. Applied egg-rr32.3%

      \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
    8. Step-by-step derivation
      1. difference-of-squares32.3%

        \[\leadsto \frac{t1}{\color{blue}{\sqrt{u} \cdot \sqrt{u} - \sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
      2. rem-square-sqrt77.2%

        \[\leadsto \frac{t1}{\color{blue}{u} - \sqrt{t1} \cdot \sqrt{t1}} \cdot \frac{v}{t1} \]
      3. rem-square-sqrt77.7%

        \[\leadsto \frac{t1}{u - \color{blue}{t1}} \cdot \frac{v}{t1} \]
    9. Simplified77.7%

      \[\leadsto \frac{t1}{\color{blue}{u - t1}} \cdot \frac{v}{t1} \]
    10. Taylor expanded in v around 0 77.7%

      \[\leadsto \color{blue}{\frac{v}{u - t1}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification79.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -4.8 \cdot 10^{-6}:\\ \;\;\;\;\frac{-1}{\frac{t1 + u}{v}}\\ \mathbf{elif}\;t1 \leq 1.1 \cdot 10^{-77}:\\ \;\;\;\;v \cdot \frac{t1}{u \cdot \left(-u\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u - t1}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 66.2% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -3.4 \cdot 10^{+44} \lor \neg \left(u \leq 8 \cdot 10^{+167}\right):\\ \;\;\;\;v \cdot \frac{\frac{t1}{u}}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -3.4e+44) (not (<= u 8e+167)))
   (* v (/ (/ t1 u) u))
   (/ (- v) (+ t1 u))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -3.4e+44) || !(u <= 8e+167)) {
		tmp = v * ((t1 / u) / 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 ((u <= (-3.4d+44)) .or. (.not. (u <= 8d+167))) then
        tmp = v * ((t1 / u) / 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 ((u <= -3.4e+44) || !(u <= 8e+167)) {
		tmp = v * ((t1 / u) / u);
	} else {
		tmp = -v / (t1 + u);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -3.4e+44) or not (u <= 8e+167):
		tmp = v * ((t1 / u) / u)
	else:
		tmp = -v / (t1 + u)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -3.4e+44) || !(u <= 8e+167))
		tmp = Float64(v * Float64(Float64(t1 / u) / u));
	else
		tmp = Float64(Float64(-v) / Float64(t1 + u));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -3.4e+44) || ~((u <= 8e+167)))
		tmp = v * ((t1 / u) / u);
	else
		tmp = -v / (t1 + u);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -3.4e+44], N[Not[LessEqual[u, 8e+167]], $MachinePrecision]], N[(v * N[(N[(t1 / u), $MachinePrecision] / u), $MachinePrecision]), $MachinePrecision], N[((-v) / N[(t1 + u), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -3.4 \cdot 10^{+44} \lor \neg \left(u \leq 8 \cdot 10^{+167}\right):\\
\;\;\;\;v \cdot \frac{\frac{t1}{u}}{u}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -3.4e44 or 8.0000000000000003e167 < u

    1. Initial program 83.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t1 around 0 83.4%

      \[\leadsto \frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \color{blue}{u}} \]
    4. Step-by-step derivation
      1. associate-/l*86.1%

        \[\leadsto \color{blue}{\left(-t1\right) \cdot \frac{v}{\left(t1 + u\right) \cdot u}} \]
      2. add-sqr-sqrt38.2%

        \[\leadsto \color{blue}{\left(\sqrt{-t1} \cdot \sqrt{-t1}\right)} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      3. sqrt-unprod69.1%

        \[\leadsto \color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      4. sqr-neg69.1%

        \[\leadsto \sqrt{\color{blue}{t1 \cdot t1}} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      5. sqrt-unprod39.6%

        \[\leadsto \color{blue}{\left(\sqrt{t1} \cdot \sqrt{t1}\right)} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      6. add-sqr-sqrt74.3%

        \[\leadsto \color{blue}{t1} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      7. associate-/r*74.2%

        \[\leadsto t1 \cdot \color{blue}{\frac{\frac{v}{t1 + u}}{u}} \]
    5. Applied egg-rr74.2%

      \[\leadsto \color{blue}{t1 \cdot \frac{\frac{v}{t1 + u}}{u}} \]
    6. Step-by-step derivation
      1. associate-/l/74.3%

        \[\leadsto t1 \cdot \color{blue}{\frac{v}{u \cdot \left(t1 + u\right)}} \]
      2. associate-/l*74.0%

        \[\leadsto \color{blue}{\frac{t1 \cdot v}{u \cdot \left(t1 + u\right)}} \]
      3. *-commutative74.0%

        \[\leadsto \frac{\color{blue}{v \cdot t1}}{u \cdot \left(t1 + u\right)} \]
      4. associate-*r/74.4%

        \[\leadsto \color{blue}{v \cdot \frac{t1}{u \cdot \left(t1 + u\right)}} \]
      5. associate-/r*74.4%

        \[\leadsto v \cdot \color{blue}{\frac{\frac{t1}{u}}{t1 + u}} \]
    7. Simplified74.4%

      \[\leadsto \color{blue}{v \cdot \frac{\frac{t1}{u}}{t1 + u}} \]
    8. Taylor expanded in t1 around 0 74.2%

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

    if -3.4e44 < u < 8.0000000000000003e167

    1. Initial program 63.8%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.7%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
      2. distribute-frac-neg97.7%

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.7%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.7%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.7%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.7%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.7%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. frac-2neg97.7%

        \[\leadsto \color{blue}{\frac{-t1}{-\left(\left(-u\right) - t1\right)}} \cdot \frac{v}{t1 + u} \]
      2. frac-2neg97.7%

        \[\leadsto \frac{-t1}{-\left(\left(-u\right) - t1\right)} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
      3. frac-times63.8%

        \[\leadsto \color{blue}{\frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(\left(-u\right) - t1\right)\right) \cdot \left(-\left(t1 + u\right)\right)}} \]
      4. sub-neg63.8%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
      5. distribute-neg-in63.8%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(-\left(u + t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
      6. +-commutative63.8%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(-\color{blue}{\left(t1 + u\right)}\right)\right) \cdot \left(-\left(t1 + u\right)\right)} \]
      7. remove-double-neg63.8%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\color{blue}{\left(t1 + u\right)} \cdot \left(-\left(t1 + u\right)\right)} \]
      8. frac-times97.7%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{-v}{-\left(t1 + u\right)}} \]
      9. associate-*r/99.5%

        \[\leadsto \color{blue}{\frac{\frac{-t1}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)}} \]
      10. add-sqr-sqrt47.5%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      11. sqrt-unprod28.1%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      12. sqr-neg28.1%

        \[\leadsto \frac{\frac{\sqrt{\color{blue}{t1 \cdot t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      13. sqrt-unprod10.5%

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

        \[\leadsto \frac{\frac{\color{blue}{t1}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      15. add-sqr-sqrt10.3%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{-\left(t1 + u\right)} \cdot \sqrt{-\left(t1 + u\right)}}} \]
      16. sqrt-unprod50.8%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{\left(-\left(t1 + u\right)\right) \cdot \left(-\left(t1 + u\right)\right)}}} \]
    6. Applied egg-rr99.5%

      \[\leadsto \color{blue}{\frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{t1 + u}} \]
    7. Taylor expanded in t1 around inf 72.8%

      \[\leadsto \frac{\color{blue}{-1 \cdot v}}{t1 + u} \]
    8. Step-by-step derivation
      1. mul-1-neg72.8%

        \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
    9. Simplified72.8%

      \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification73.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -3.4 \cdot 10^{+44} \lor \neg \left(u \leq 8 \cdot 10^{+167}\right):\\ \;\;\;\;v \cdot \frac{\frac{t1}{u}}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 63.8% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -3.4 \cdot 10^{+81} \lor \neg \left(u \leq 5.6 \cdot 10^{+137}\right):\\ \;\;\;\;v \cdot \frac{\frac{t1}{u}}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -3.4e+81) (not (<= u 5.6e+137)))
   (* v (/ (/ t1 u) t1))
   (/ (- v) (+ t1 u))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -3.4e+81) || !(u <= 5.6e+137)) {
		tmp = v * ((t1 / u) / t1);
	} 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 ((u <= (-3.4d+81)) .or. (.not. (u <= 5.6d+137))) then
        tmp = v * ((t1 / u) / t1)
    else
        tmp = -v / (t1 + u)
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -3.4e+81) || !(u <= 5.6e+137)) {
		tmp = v * ((t1 / u) / t1);
	} else {
		tmp = -v / (t1 + u);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -3.4e+81) or not (u <= 5.6e+137):
		tmp = v * ((t1 / u) / t1)
	else:
		tmp = -v / (t1 + u)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -3.4e+81) || !(u <= 5.6e+137))
		tmp = Float64(v * Float64(Float64(t1 / u) / t1));
	else
		tmp = Float64(Float64(-v) / Float64(t1 + u));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -3.4e+81) || ~((u <= 5.6e+137)))
		tmp = v * ((t1 / u) / t1);
	else
		tmp = -v / (t1 + u);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -3.4e+81], N[Not[LessEqual[u, 5.6e+137]], $MachinePrecision]], N[(v * N[(N[(t1 / u), $MachinePrecision] / t1), $MachinePrecision]), $MachinePrecision], N[((-v) / N[(t1 + u), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -3.4 \cdot 10^{+81} \lor \neg \left(u \leq 5.6 \cdot 10^{+137}\right):\\
\;\;\;\;v \cdot \frac{\frac{t1}{u}}{t1}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -3.40000000000000003e81 or 5.60000000000000002e137 < u

    1. Initial program 80.7%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t1 around 0 80.8%

      \[\leadsto \frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \color{blue}{u}} \]
    4. Step-by-step derivation
      1. associate-/l*83.4%

        \[\leadsto \color{blue}{\left(-t1\right) \cdot \frac{v}{\left(t1 + u\right) \cdot u}} \]
      2. add-sqr-sqrt36.5%

        \[\leadsto \color{blue}{\left(\sqrt{-t1} \cdot \sqrt{-t1}\right)} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      3. sqrt-unprod65.9%

        \[\leadsto \color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      4. sqr-neg65.9%

        \[\leadsto \sqrt{\color{blue}{t1 \cdot t1}} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      5. sqrt-unprod37.8%

        \[\leadsto \color{blue}{\left(\sqrt{t1} \cdot \sqrt{t1}\right)} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      6. add-sqr-sqrt72.1%

        \[\leadsto \color{blue}{t1} \cdot \frac{v}{\left(t1 + u\right) \cdot u} \]
      7. associate-/r*72.0%

        \[\leadsto t1 \cdot \color{blue}{\frac{\frac{v}{t1 + u}}{u}} \]
    5. Applied egg-rr72.0%

      \[\leadsto \color{blue}{t1 \cdot \frac{\frac{v}{t1 + u}}{u}} \]
    6. Step-by-step derivation
      1. associate-/l/72.1%

        \[\leadsto t1 \cdot \color{blue}{\frac{v}{u \cdot \left(t1 + u\right)}} \]
      2. associate-/l*71.7%

        \[\leadsto \color{blue}{\frac{t1 \cdot v}{u \cdot \left(t1 + u\right)}} \]
      3. *-commutative71.7%

        \[\leadsto \frac{\color{blue}{v \cdot t1}}{u \cdot \left(t1 + u\right)} \]
      4. associate-*r/72.2%

        \[\leadsto \color{blue}{v \cdot \frac{t1}{u \cdot \left(t1 + u\right)}} \]
      5. associate-/r*72.2%

        \[\leadsto v \cdot \color{blue}{\frac{\frac{t1}{u}}{t1 + u}} \]
    7. Simplified72.2%

      \[\leadsto \color{blue}{v \cdot \frac{\frac{t1}{u}}{t1 + u}} \]
    8. Taylor expanded in t1 around inf 60.7%

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

    if -3.40000000000000003e81 < u < 5.60000000000000002e137

    1. Initial program 64.7%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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. Step-by-step derivation
      1. frac-2neg97.1%

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

        \[\leadsto \frac{-t1}{-\left(\left(-u\right) - t1\right)} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
      3. frac-times64.7%

        \[\leadsto \color{blue}{\frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(\left(-u\right) - t1\right)\right) \cdot \left(-\left(t1 + u\right)\right)}} \]
      4. sub-neg64.7%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
      5. distribute-neg-in64.7%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(-\left(u + t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
      6. +-commutative64.7%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(-\color{blue}{\left(t1 + u\right)}\right)\right) \cdot \left(-\left(t1 + u\right)\right)} \]
      7. remove-double-neg64.7%

        \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\color{blue}{\left(t1 + u\right)} \cdot \left(-\left(t1 + u\right)\right)} \]
      8. frac-times97.1%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{-v}{-\left(t1 + u\right)}} \]
      9. associate-*r/98.9%

        \[\leadsto \color{blue}{\frac{\frac{-t1}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)}} \]
      10. add-sqr-sqrt46.9%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      11. sqrt-unprod28.2%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      12. sqr-neg28.2%

        \[\leadsto \frac{\frac{\sqrt{\color{blue}{t1 \cdot t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      13. sqrt-unprod10.7%

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

        \[\leadsto \frac{\frac{\color{blue}{t1}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
      15. add-sqr-sqrt11.2%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{-\left(t1 + u\right)} \cdot \sqrt{-\left(t1 + u\right)}}} \]
      16. sqrt-unprod50.8%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{\left(-\left(t1 + u\right)\right) \cdot \left(-\left(t1 + u\right)\right)}}} \]
    6. Applied egg-rr98.9%

      \[\leadsto \color{blue}{\frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{t1 + u}} \]
    7. Taylor expanded in t1 around inf 73.8%

      \[\leadsto \frac{\color{blue}{-1 \cdot v}}{t1 + u} \]
    8. Step-by-step derivation
      1. mul-1-neg73.8%

        \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
    9. Simplified73.8%

      \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification69.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -3.4 \cdot 10^{+81} \lor \neg \left(u \leq 5.6 \cdot 10^{+137}\right):\\ \;\;\;\;v \cdot \frac{\frac{t1}{u}}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 59.3% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -1.7 \cdot 10^{+136} \lor \neg \left(u \leq 5.8 \cdot 10^{+174}\right):\\ \;\;\;\;\frac{-1}{\frac{u}{v}}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -1.7e+136) (not (<= u 5.8e+174)))
   (/ -1.0 (/ u v))
   (/ v (- t1))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -1.7e+136) || !(u <= 5.8e+174)) {
		tmp = -1.0 / (u / v);
	} else {
		tmp = v / -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 <= (-1.7d+136)) .or. (.not. (u <= 5.8d+174))) then
        tmp = (-1.0d0) / (u / v)
    else
        tmp = v / -t1
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -1.7e+136) || !(u <= 5.8e+174)) {
		tmp = -1.0 / (u / v);
	} else {
		tmp = v / -t1;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -1.7e+136) or not (u <= 5.8e+174):
		tmp = -1.0 / (u / v)
	else:
		tmp = v / -t1
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -1.7e+136) || !(u <= 5.8e+174))
		tmp = Float64(-1.0 / Float64(u / v));
	else
		tmp = Float64(v / Float64(-t1));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -1.7e+136) || ~((u <= 5.8e+174)))
		tmp = -1.0 / (u / v);
	else
		tmp = v / -t1;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -1.7e+136], N[Not[LessEqual[u, 5.8e+174]], $MachinePrecision]], N[(-1.0 / N[(u / v), $MachinePrecision]), $MachinePrecision], N[(v / (-t1)), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -1.7 \cdot 10^{+136} \lor \neg \left(u \leq 5.8 \cdot 10^{+174}\right):\\
\;\;\;\;\frac{-1}{\frac{u}{v}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -1.69999999999999998e136 or 5.7999999999999999e174 < u

    1. Initial program 85.1%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 45.6%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. clear-num47.8%

        \[\leadsto -1 \cdot \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
      2. un-div-inv47.8%

        \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    7. Applied egg-rr47.8%

      \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    8. Taylor expanded in t1 around 0 47.4%

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

    if -1.69999999999999998e136 < u < 5.7999999999999999e174

    1. Initial program 65.0%

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

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

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.2%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.2%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 67.0%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/67.0%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-167.0%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified67.0%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification62.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -1.7 \cdot 10^{+136} \lor \neg \left(u \leq 5.8 \cdot 10^{+174}\right):\\ \;\;\;\;\frac{-1}{\frac{u}{v}}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 59.4% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -6.5 \cdot 10^{+132}:\\ \;\;\;\;\frac{-1}{\frac{u}{v}}\\ \mathbf{elif}\;u \leq 2.7 \cdot 10^{+168}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{u}{v}}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= u -6.5e+132)
   (/ -1.0 (/ u v))
   (if (<= u 2.7e+168) (/ v (- t1)) (/ 1.0 (/ u v)))))
double code(double u, double v, double t1) {
	double tmp;
	if (u <= -6.5e+132) {
		tmp = -1.0 / (u / v);
	} else if (u <= 2.7e+168) {
		tmp = v / -t1;
	} else {
		tmp = 1.0 / (u / v);
	}
	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+132)) then
        tmp = (-1.0d0) / (u / v)
    else if (u <= 2.7d+168) then
        tmp = v / -t1
    else
        tmp = 1.0d0 / (u / v)
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if (u <= -6.5e+132) {
		tmp = -1.0 / (u / v);
	} else if (u <= 2.7e+168) {
		tmp = v / -t1;
	} else {
		tmp = 1.0 / (u / v);
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if u <= -6.5e+132:
		tmp = -1.0 / (u / v)
	elif u <= 2.7e+168:
		tmp = v / -t1
	else:
		tmp = 1.0 / (u / v)
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (u <= -6.5e+132)
		tmp = Float64(-1.0 / Float64(u / v));
	elseif (u <= 2.7e+168)
		tmp = Float64(v / Float64(-t1));
	else
		tmp = Float64(1.0 / Float64(u / v));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (u <= -6.5e+132)
		tmp = -1.0 / (u / v);
	elseif (u <= 2.7e+168)
		tmp = v / -t1;
	else
		tmp = 1.0 / (u / v);
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[u, -6.5e+132], N[(-1.0 / N[(u / v), $MachinePrecision]), $MachinePrecision], If[LessEqual[u, 2.7e+168], N[(v / (-t1)), $MachinePrecision], N[(1.0 / N[(u / v), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -6.5 \cdot 10^{+132}:\\
\;\;\;\;\frac{-1}{\frac{u}{v}}\\

\mathbf{elif}\;u \leq 2.7 \cdot 10^{+168}:\\
\;\;\;\;\frac{v}{-t1}\\

\mathbf{else}:\\
\;\;\;\;\frac{1}{\frac{u}{v}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if u < -6.4999999999999994e132

    1. Initial program 87.2%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 45.7%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. clear-num47.2%

        \[\leadsto -1 \cdot \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
      2. un-div-inv47.2%

        \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    7. Applied egg-rr47.2%

      \[\leadsto \color{blue}{\frac{-1}{\frac{t1 + u}{v}}} \]
    8. Taylor expanded in t1 around 0 47.2%

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

    if -6.4999999999999994e132 < u < 2.70000000000000016e168

    1. Initial program 65.3%

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

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

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.2%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.2%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 67.3%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/67.3%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-167.3%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified67.3%

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

    if 2.70000000000000016e168 < u

    1. Initial program 76.8%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 43.4%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Step-by-step derivation
      1. associate-*r/43.4%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1 + u}} \]
      2. neg-mul-143.4%

        \[\leadsto \frac{\color{blue}{-v}}{t1 + u} \]
      3. clear-num47.0%

        \[\leadsto \color{blue}{\frac{1}{\frac{t1 + u}{-v}}} \]
      4. add-sqr-sqrt27.3%

        \[\leadsto \frac{1}{\frac{t1 + u}{\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}}} \]
      5. sqrt-unprod45.7%

        \[\leadsto \frac{1}{\frac{t1 + u}{\color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}}}} \]
      6. sqr-neg45.7%

        \[\leadsto \frac{1}{\frac{t1 + u}{\sqrt{\color{blue}{v \cdot v}}}} \]
      7. sqrt-unprod20.0%

        \[\leadsto \frac{1}{\frac{t1 + u}{\color{blue}{\sqrt{v} \cdot \sqrt{v}}}} \]
      8. add-sqr-sqrt46.1%

        \[\leadsto \frac{1}{\frac{t1 + u}{\color{blue}{v}}} \]
    7. Applied egg-rr46.1%

      \[\leadsto \color{blue}{\frac{1}{\frac{t1 + u}{v}}} \]
    8. Taylor expanded in t1 around 0 46.7%

      \[\leadsto \frac{1}{\frac{\color{blue}{u}}{v}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification62.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -6.5 \cdot 10^{+132}:\\ \;\;\;\;\frac{-1}{\frac{u}{v}}\\ \mathbf{elif}\;u \leq 2.7 \cdot 10^{+168}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{u}{v}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 59.1% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -2.3 \cdot 10^{+134} \lor \neg \left(u \leq 9.6 \cdot 10^{+172}\right):\\ \;\;\;\;\frac{v}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= u -2.3e+134) (not (<= u 9.6e+172))) (/ v u) (/ v (- t1))))
double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -2.3e+134) || !(u <= 9.6e+172)) {
		tmp = v / u;
	} else {
		tmp = v / -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 <= (-2.3d+134)) .or. (.not. (u <= 9.6d+172))) then
        tmp = v / u
    else
        tmp = v / -t1
    end if
    code = tmp
end function
public static double code(double u, double v, double t1) {
	double tmp;
	if ((u <= -2.3e+134) || !(u <= 9.6e+172)) {
		tmp = v / u;
	} else {
		tmp = v / -t1;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (u <= -2.3e+134) or not (u <= 9.6e+172):
		tmp = v / u
	else:
		tmp = v / -t1
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((u <= -2.3e+134) || !(u <= 9.6e+172))
		tmp = Float64(v / u);
	else
		tmp = Float64(v / Float64(-t1));
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if ((u <= -2.3e+134) || ~((u <= 9.6e+172)))
		tmp = v / u;
	else
		tmp = v / -t1;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[u, -2.3e+134], N[Not[LessEqual[u, 9.6e+172]], $MachinePrecision]], N[(v / u), $MachinePrecision], N[(v / (-t1)), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -2.3 \cdot 10^{+134} \lor \neg \left(u \leq 9.6 \cdot 10^{+172}\right):\\
\;\;\;\;\frac{v}{u}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if u < -2.2999999999999998e134 or 9.6000000000000002e172 < u

    1. Initial program 83.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 59.9%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{t1}} \]
    6. Step-by-step derivation
      1. add-sqr-sqrt40.5%

        \[\leadsto \frac{t1}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \cdot \frac{v}{t1} \]
      2. add-sqr-sqrt23.1%

        \[\leadsto \frac{t1}{\sqrt{-u} \cdot \sqrt{-u} - \color{blue}{\sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
      3. difference-of-squares23.1%

        \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{-u} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
      4. add-sqr-sqrt23.1%

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

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      6. sqr-neg26.1%

        \[\leadsto \frac{t1}{\left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      7. sqrt-unprod0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      8. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{u}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      9. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      10. sqrt-unprod12.2%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      11. sqr-neg12.2%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      12. sqrt-unprod10.8%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      13. add-sqr-sqrt10.8%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{u}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    7. Applied egg-rr10.8%

      \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
    8. Step-by-step derivation
      1. difference-of-squares10.8%

        \[\leadsto \frac{t1}{\color{blue}{\sqrt{u} \cdot \sqrt{u} - \sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
      2. rem-square-sqrt34.1%

        \[\leadsto \frac{t1}{\color{blue}{u} - \sqrt{t1} \cdot \sqrt{t1}} \cdot \frac{v}{t1} \]
      3. rem-square-sqrt59.9%

        \[\leadsto \frac{t1}{u - \color{blue}{t1}} \cdot \frac{v}{t1} \]
    9. Simplified59.9%

      \[\leadsto \frac{t1}{\color{blue}{u - t1}} \cdot \frac{v}{t1} \]
    10. Taylor expanded in t1 around 0 44.8%

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

    if -2.2999999999999998e134 < u < 9.6000000000000002e172

    1. Initial program 65.3%

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

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

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.2%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.2%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 67.3%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/67.3%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-167.3%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified67.3%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification61.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -2.3 \cdot 10^{+134} \lor \neg \left(u \leq 9.6 \cdot 10^{+172}\right):\\ \;\;\;\;\frac{v}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{-t1}\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 59.1% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;u \leq -1.45 \cdot 10^{+136}:\\ \;\;\;\;\frac{v}{-u}\\ \mathbf{elif}\;u \leq 9.4 \cdot 10^{+167}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (<= u -1.45e+136) (/ v (- u)) (if (<= u 9.4e+167) (/ v (- t1)) (/ v u))))
double code(double u, double v, double t1) {
	double tmp;
	if (u <= -1.45e+136) {
		tmp = v / -u;
	} else if (u <= 9.4e+167) {
		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 <= (-1.45d+136)) then
        tmp = v / -u
    else if (u <= 9.4d+167) 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 <= -1.45e+136) {
		tmp = v / -u;
	} else if (u <= 9.4e+167) {
		tmp = v / -t1;
	} else {
		tmp = v / u;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if u <= -1.45e+136:
		tmp = v / -u
	elif u <= 9.4e+167:
		tmp = v / -t1
	else:
		tmp = v / u
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if (u <= -1.45e+136)
		tmp = Float64(v / Float64(-u));
	elseif (u <= 9.4e+167)
		tmp = Float64(v / Float64(-t1));
	else
		tmp = Float64(v / u);
	end
	return tmp
end
function tmp_2 = code(u, v, t1)
	tmp = 0.0;
	if (u <= -1.45e+136)
		tmp = v / -u;
	elseif (u <= 9.4e+167)
		tmp = v / -t1;
	else
		tmp = v / u;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[LessEqual[u, -1.45e+136], N[(v / (-u)), $MachinePrecision], If[LessEqual[u, 9.4e+167], N[(v / (-t1)), $MachinePrecision], N[(v / u), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;u \leq -1.45 \cdot 10^{+136}:\\
\;\;\;\;\frac{v}{-u}\\

\mathbf{elif}\;u \leq 9.4 \cdot 10^{+167}:\\
\;\;\;\;\frac{v}{-t1}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if u < -1.44999999999999987e136

    1. Initial program 87.2%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 45.7%

      \[\leadsto \color{blue}{-1} \cdot \frac{v}{t1 + u} \]
    6. Taylor expanded in t1 around 0 45.7%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{u}} \]
    7. Step-by-step derivation
      1. associate-*r/45.7%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{u}} \]
      2. mul-1-neg45.7%

        \[\leadsto \frac{\color{blue}{-v}}{u} \]
    8. Simplified45.7%

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

    if -1.44999999999999987e136 < u < 9.40000000000000026e167

    1. Initial program 65.3%

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

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

        \[\leadsto \color{blue}{\left(-\frac{t1}{t1 + u}\right)} \cdot \frac{v}{t1 + u} \]
      3. distribute-neg-frac297.2%

        \[\leadsto \color{blue}{\frac{t1}{-\left(t1 + u\right)}} \cdot \frac{v}{t1 + u} \]
      4. +-commutative97.2%

        \[\leadsto \frac{t1}{-\color{blue}{\left(u + t1\right)}} \cdot \frac{v}{t1 + u} \]
      5. distribute-neg-in97.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) + \left(-t1\right)}} \cdot \frac{v}{t1 + u} \]
      6. unsub-neg97.2%

        \[\leadsto \frac{t1}{\color{blue}{\left(-u\right) - t1}} \cdot \frac{v}{t1 + u} \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\frac{t1}{\left(-u\right) - t1} \cdot \frac{v}{t1 + u}} \]
    4. Add Preprocessing
    5. Taylor expanded in t1 around inf 67.3%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/67.3%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-167.3%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified67.3%

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

    if 9.40000000000000026e167 < u

    1. Initial program 76.8%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 61.1%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{t1}} \]
    6. Step-by-step derivation
      1. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \cdot \frac{v}{t1} \]
      2. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\sqrt{-u} \cdot \sqrt{-u} - \color{blue}{\sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
      3. difference-of-squares0.0%

        \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{-u} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
      4. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      5. sqrt-unprod0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      6. sqr-neg0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      7. sqrt-unprod0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      8. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{u}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      9. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      10. sqrt-unprod38.4%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      11. sqr-neg38.4%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      12. sqrt-unprod33.9%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      13. add-sqr-sqrt33.9%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{u}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    7. Applied egg-rr33.9%

      \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
    8. Step-by-step derivation
      1. difference-of-squares33.9%

        \[\leadsto \frac{t1}{\color{blue}{\sqrt{u} \cdot \sqrt{u} - \sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
      2. rem-square-sqrt33.9%

        \[\leadsto \frac{t1}{\color{blue}{u} - \sqrt{t1} \cdot \sqrt{t1}} \cdot \frac{v}{t1} \]
      3. rem-square-sqrt61.3%

        \[\leadsto \frac{t1}{u - \color{blue}{t1}} \cdot \frac{v}{t1} \]
    9. Simplified61.3%

      \[\leadsto \frac{t1}{\color{blue}{u - t1}} \cdot \frac{v}{t1} \]
    10. Taylor expanded in t1 around 0 43.2%

      \[\leadsto \color{blue}{\frac{v}{u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification61.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -1.45 \cdot 10^{+136}:\\ \;\;\;\;\frac{v}{-u}\\ \mathbf{elif}\;u \leq 9.4 \cdot 10^{+167}:\\ \;\;\;\;\frac{v}{-t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 23.1% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t1 \leq -4.4 \cdot 10^{+111} \lor \neg \left(t1 \leq 1.3 \cdot 10^{+169}\right):\\ \;\;\;\;\frac{v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u}\\ \end{array} \end{array} \]
(FPCore (u v t1)
 :precision binary64
 (if (or (<= t1 -4.4e+111) (not (<= t1 1.3e+169))) (/ v t1) (/ v u)))
double code(double u, double v, double t1) {
	double tmp;
	if ((t1 <= -4.4e+111) || !(t1 <= 1.3e+169)) {
		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 <= (-4.4d+111)) .or. (.not. (t1 <= 1.3d+169))) 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 <= -4.4e+111) || !(t1 <= 1.3e+169)) {
		tmp = v / t1;
	} else {
		tmp = v / u;
	}
	return tmp;
}
def code(u, v, t1):
	tmp = 0
	if (t1 <= -4.4e+111) or not (t1 <= 1.3e+169):
		tmp = v / t1
	else:
		tmp = v / u
	return tmp
function code(u, v, t1)
	tmp = 0.0
	if ((t1 <= -4.4e+111) || !(t1 <= 1.3e+169))
		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 <= -4.4e+111) || ~((t1 <= 1.3e+169)))
		tmp = v / t1;
	else
		tmp = v / u;
	end
	tmp_2 = tmp;
end
code[u_, v_, t1_] := If[Or[LessEqual[t1, -4.4e+111], N[Not[LessEqual[t1, 1.3e+169]], $MachinePrecision]], N[(v / t1), $MachinePrecision], N[(v / u), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t1 \leq -4.4 \cdot 10^{+111} \lor \neg \left(t1 \leq 1.3 \cdot 10^{+169}\right):\\
\;\;\;\;\frac{v}{t1}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t1 < -4.39999999999999997e111 or 1.3e169 < t1

    1. Initial program 44.5%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 91.8%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    6. Step-by-step derivation
      1. associate-*r/91.8%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-191.8%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    7. Simplified91.8%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
    8. Step-by-step derivation
      1. distribute-frac-neg91.8%

        \[\leadsto \color{blue}{-\frac{v}{t1}} \]
      2. div-inv91.6%

        \[\leadsto -\color{blue}{v \cdot \frac{1}{t1}} \]
      3. distribute-rgt-neg-in91.6%

        \[\leadsto \color{blue}{v \cdot \left(-\frac{1}{t1}\right)} \]
      4. frac-2neg91.6%

        \[\leadsto v \cdot \left(-\color{blue}{\frac{-1}{-t1}}\right) \]
      5. metadata-eval91.6%

        \[\leadsto v \cdot \left(-\frac{\color{blue}{-1}}{-t1}\right) \]
      6. add-sqr-sqrt52.5%

        \[\leadsto v \cdot \left(-\frac{-1}{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}\right) \]
      7. sqrt-unprod45.1%

        \[\leadsto v \cdot \left(-\frac{-1}{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}\right) \]
      8. sqr-neg45.1%

        \[\leadsto v \cdot \left(-\frac{-1}{\sqrt{\color{blue}{t1 \cdot t1}}}\right) \]
      9. sqrt-unprod16.5%

        \[\leadsto v \cdot \left(-\frac{-1}{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}}}\right) \]
      10. add-sqr-sqrt36.4%

        \[\leadsto v \cdot \left(-\frac{-1}{\color{blue}{t1}}\right) \]
    9. Applied egg-rr36.4%

      \[\leadsto \color{blue}{v \cdot \left(-\frac{-1}{t1}\right)} \]
    10. Step-by-step derivation
      1. distribute-rgt-neg-out36.4%

        \[\leadsto \color{blue}{-v \cdot \frac{-1}{t1}} \]
      2. *-commutative36.4%

        \[\leadsto -\color{blue}{\frac{-1}{t1} \cdot v} \]
      3. associate-*l/36.4%

        \[\leadsto -\color{blue}{\frac{-1 \cdot v}{t1}} \]
      4. mul-1-neg36.4%

        \[\leadsto -\frac{\color{blue}{-v}}{t1} \]
      5. distribute-neg-frac36.4%

        \[\leadsto -\color{blue}{\left(-\frac{v}{t1}\right)} \]
      6. remove-double-neg36.4%

        \[\leadsto \color{blue}{\frac{v}{t1}} \]
    11. Simplified36.4%

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

    if -4.39999999999999997e111 < t1 < 1.3e169

    1. Initial program 80.9%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    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 inf 55.4%

      \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{t1}} \]
    6. Step-by-step derivation
      1. add-sqr-sqrt32.1%

        \[\leadsto \frac{t1}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \cdot \frac{v}{t1} \]
      2. add-sqr-sqrt19.8%

        \[\leadsto \frac{t1}{\sqrt{-u} \cdot \sqrt{-u} - \color{blue}{\sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
      3. difference-of-squares19.8%

        \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{-u} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
      4. add-sqr-sqrt19.8%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      5. sqrt-unprod20.9%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      6. sqr-neg20.9%

        \[\leadsto \frac{t1}{\left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      7. sqrt-unprod0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      8. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{u}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      9. add-sqr-sqrt0.0%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      10. sqrt-unprod13.6%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      11. sqr-neg13.6%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      12. sqrt-unprod13.0%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
      13. add-sqr-sqrt13.0%

        \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{u}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    7. Applied egg-rr13.0%

      \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
    8. Step-by-step derivation
      1. difference-of-squares13.0%

        \[\leadsto \frac{t1}{\color{blue}{\sqrt{u} \cdot \sqrt{u} - \sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
      2. rem-square-sqrt33.6%

        \[\leadsto \frac{t1}{\color{blue}{u} - \sqrt{t1} \cdot \sqrt{t1}} \cdot \frac{v}{t1} \]
      3. rem-square-sqrt55.3%

        \[\leadsto \frac{t1}{u - \color{blue}{t1}} \cdot \frac{v}{t1} \]
    9. Simplified55.3%

      \[\leadsto \frac{t1}{\color{blue}{u - t1}} \cdot \frac{v}{t1} \]
    10. Taylor expanded in t1 around 0 19.3%

      \[\leadsto \color{blue}{\frac{v}{u}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification24.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -4.4 \cdot 10^{+111} \lor \neg \left(t1 \leq 1.3 \cdot 10^{+169}\right):\\ \;\;\;\;\frac{v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{v}{u}\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 97.9% 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(t1 / Float64(t1 + u)) * Float64(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 70.1%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  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. Final simplification97.9%

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

Alternative 15: 61.9% accurate, 2.0× speedup?

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

\\
\frac{-v}{t1 + u}
\end{array}
Derivation
  1. Initial program 70.1%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  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. Step-by-step derivation
    1. frac-2neg97.9%

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

      \[\leadsto \frac{-t1}{-\left(\left(-u\right) - t1\right)} \cdot \color{blue}{\frac{-v}{-\left(t1 + u\right)}} \]
    3. frac-times70.1%

      \[\leadsto \color{blue}{\frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(\left(-u\right) - t1\right)\right) \cdot \left(-\left(t1 + u\right)\right)}} \]
    4. sub-neg70.1%

      \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(\left(-u\right) + \left(-t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
    5. distribute-neg-in70.1%

      \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\color{blue}{\left(-\left(u + t1\right)\right)}\right) \cdot \left(-\left(t1 + u\right)\right)} \]
    6. +-commutative70.1%

      \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\left(-\left(-\color{blue}{\left(t1 + u\right)}\right)\right) \cdot \left(-\left(t1 + u\right)\right)} \]
    7. remove-double-neg70.1%

      \[\leadsto \frac{\left(-t1\right) \cdot \left(-v\right)}{\color{blue}{\left(t1 + u\right)} \cdot \left(-\left(t1 + u\right)\right)} \]
    8. frac-times97.9%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{-v}{-\left(t1 + u\right)}} \]
    9. associate-*r/99.1%

      \[\leadsto \color{blue}{\frac{\frac{-t1}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)}} \]
    10. add-sqr-sqrt46.7%

      \[\leadsto \frac{\frac{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    11. sqrt-unprod42.4%

      \[\leadsto \frac{\frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    12. sqr-neg42.4%

      \[\leadsto \frac{\frac{\sqrt{\color{blue}{t1 \cdot t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    13. sqrt-unprod19.8%

      \[\leadsto \frac{\frac{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    14. add-sqr-sqrt39.5%

      \[\leadsto \frac{\frac{\color{blue}{t1}}{t1 + u} \cdot \left(-v\right)}{-\left(t1 + u\right)} \]
    15. add-sqr-sqrt25.2%

      \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{-\left(t1 + u\right)} \cdot \sqrt{-\left(t1 + u\right)}}} \]
    16. sqrt-unprod58.3%

      \[\leadsto \frac{\frac{t1}{t1 + u} \cdot \left(-v\right)}{\color{blue}{\sqrt{\left(-\left(t1 + u\right)\right) \cdot \left(-\left(t1 + u\right)\right)}}} \]
  6. Applied egg-rr99.1%

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

    \[\leadsto \frac{\color{blue}{-1 \cdot v}}{t1 + u} \]
  8. Step-by-step derivation
    1. mul-1-neg62.2%

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

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

Alternative 16: 61.8% 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 70.1%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  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 66.8%

    \[\leadsto \frac{t1}{\left(-u\right) - t1} \cdot \color{blue}{\frac{v}{t1}} \]
  6. Step-by-step derivation
    1. add-sqr-sqrt34.4%

      \[\leadsto \frac{t1}{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}} - t1} \cdot \frac{v}{t1} \]
    2. add-sqr-sqrt20.1%

      \[\leadsto \frac{t1}{\sqrt{-u} \cdot \sqrt{-u} - \color{blue}{\sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
    3. difference-of-squares20.1%

      \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{-u} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
    4. add-sqr-sqrt20.1%

      \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    5. sqrt-unprod20.9%

      \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    6. sqr-neg20.9%

      \[\leadsto \frac{t1}{\left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    7. sqrt-unprod0.0%

      \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    8. add-sqr-sqrt0.0%

      \[\leadsto \frac{t1}{\left(\sqrt{\color{blue}{u}} + \sqrt{t1}\right) \cdot \left(\sqrt{-u} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    9. add-sqr-sqrt0.0%

      \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{-u} \cdot \sqrt{-u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    10. sqrt-unprod14.6%

      \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    11. sqr-neg14.6%

      \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\sqrt{\color{blue}{u \cdot u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    12. sqrt-unprod14.5%

      \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{\sqrt{u} \cdot \sqrt{u}}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
    13. add-sqr-sqrt14.5%

      \[\leadsto \frac{t1}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{\color{blue}{u}} - \sqrt{t1}\right)} \cdot \frac{v}{t1} \]
  7. Applied egg-rr14.5%

    \[\leadsto \frac{t1}{\color{blue}{\left(\sqrt{u} + \sqrt{t1}\right) \cdot \left(\sqrt{u} - \sqrt{t1}\right)}} \cdot \frac{v}{t1} \]
  8. Step-by-step derivation
    1. difference-of-squares14.5%

      \[\leadsto \frac{t1}{\color{blue}{\sqrt{u} \cdot \sqrt{u} - \sqrt{t1} \cdot \sqrt{t1}}} \cdot \frac{v}{t1} \]
    2. rem-square-sqrt35.2%

      \[\leadsto \frac{t1}{\color{blue}{u} - \sqrt{t1} \cdot \sqrt{t1}} \cdot \frac{v}{t1} \]
    3. rem-square-sqrt66.7%

      \[\leadsto \frac{t1}{u - \color{blue}{t1}} \cdot \frac{v}{t1} \]
  9. Simplified66.7%

    \[\leadsto \frac{t1}{\color{blue}{u - t1}} \cdot \frac{v}{t1} \]
  10. Taylor expanded in v around 0 62.1%

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

Alternative 17: 14.2% 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 70.1%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  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 54.1%

    \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
  6. Step-by-step derivation
    1. associate-*r/54.1%

      \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
    2. neg-mul-154.1%

      \[\leadsto \frac{\color{blue}{-v}}{t1} \]
  7. Simplified54.1%

    \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  8. Step-by-step derivation
    1. distribute-frac-neg54.1%

      \[\leadsto \color{blue}{-\frac{v}{t1}} \]
    2. div-inv54.0%

      \[\leadsto -\color{blue}{v \cdot \frac{1}{t1}} \]
    3. distribute-rgt-neg-in54.0%

      \[\leadsto \color{blue}{v \cdot \left(-\frac{1}{t1}\right)} \]
    4. frac-2neg54.0%

      \[\leadsto v \cdot \left(-\color{blue}{\frac{-1}{-t1}}\right) \]
    5. metadata-eval54.0%

      \[\leadsto v \cdot \left(-\frac{\color{blue}{-1}}{-t1}\right) \]
    6. add-sqr-sqrt26.0%

      \[\leadsto v \cdot \left(-\frac{-1}{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}\right) \]
    7. sqrt-unprod25.2%

      \[\leadsto v \cdot \left(-\frac{-1}{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}\right) \]
    8. sqr-neg25.2%

      \[\leadsto v \cdot \left(-\frac{-1}{\sqrt{\color{blue}{t1 \cdot t1}}}\right) \]
    9. sqrt-unprod7.1%

      \[\leadsto v \cdot \left(-\frac{-1}{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}}}\right) \]
    10. add-sqr-sqrt15.1%

      \[\leadsto v \cdot \left(-\frac{-1}{\color{blue}{t1}}\right) \]
  9. Applied egg-rr15.1%

    \[\leadsto \color{blue}{v \cdot \left(-\frac{-1}{t1}\right)} \]
  10. Step-by-step derivation
    1. distribute-rgt-neg-out15.1%

      \[\leadsto \color{blue}{-v \cdot \frac{-1}{t1}} \]
    2. *-commutative15.1%

      \[\leadsto -\color{blue}{\frac{-1}{t1} \cdot v} \]
    3. associate-*l/15.1%

      \[\leadsto -\color{blue}{\frac{-1 \cdot v}{t1}} \]
    4. mul-1-neg15.1%

      \[\leadsto -\frac{\color{blue}{-v}}{t1} \]
    5. distribute-neg-frac15.1%

      \[\leadsto -\color{blue}{\left(-\frac{v}{t1}\right)} \]
    6. remove-double-neg15.1%

      \[\leadsto \color{blue}{\frac{v}{t1}} \]
  11. Simplified15.1%

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

Reproduce

?
herbie shell --seed 2024143 
(FPCore (u v t1)
  :name "Rosa's DopplerBench"
  :precision binary64
  (/ (* (- t1) v) (* (+ t1 u) (+ t1 u))))