Data.Random.Distribution.Triangular:triangularCDF from random-fu-0.2.6.2, B

Percentage Accurate: 88.8% → 96.8%
Time: 7.5s
Alternatives: 9
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \end{array} \]
(FPCore (x y z t) :precision binary64 (/ x (* (- y z) (- t z))))
double code(double x, double y, double z, double t) {
	return x / ((y - z) * (t - z));
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = x / ((y - z) * (t - z))
end function
public static double code(double x, double y, double z, double t) {
	return x / ((y - z) * (t - z));
}
def code(x, y, z, t):
	return x / ((y - z) * (t - z))
function code(x, y, z, t)
	return Float64(x / Float64(Float64(y - z) * Float64(t - z)))
end
function tmp = code(x, y, z, t)
	tmp = x / ((y - z) * (t - z));
end
code[x_, y_, z_, t_] := N[(x / N[(N[(y - z), $MachinePrecision] * N[(t - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{x}{\left(y - z\right) \cdot \left(t - z\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 9 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: 88.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \end{array} \]
(FPCore (x y z t) :precision binary64 (/ x (* (- y z) (- t z))))
double code(double x, double y, double z, double t) {
	return x / ((y - z) * (t - z));
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = x / ((y - z) * (t - z))
end function
public static double code(double x, double y, double z, double t) {
	return x / ((y - z) * (t - z));
}
def code(x, y, z, t):
	return x / ((y - z) * (t - z))
function code(x, y, z, t)
	return Float64(x / Float64(Float64(y - z) * Float64(t - z)))
end
function tmp = code(x, y, z, t)
	tmp = x / ((y - z) * (t - z));
end
code[x_, y_, z_, t_] := N[(x / N[(N[(y - z), $MachinePrecision] * N[(t - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{x}{\left(y - z\right) \cdot \left(t - z\right)}
\end{array}

Alternative 1: 96.8% accurate, 0.8× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \frac{\frac{x}{t - z}}{y - z} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t) :precision binary64 (/ (/ x (- t z)) (- y z)))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	return (x / (t - z)) / (y - z);
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = (x / (t - z)) / (y - z)
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	return (x / (t - z)) / (y - z);
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	return (x / (t - z)) / (y - z)
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	return Float64(Float64(x / Float64(t - z)) / Float64(y - z))
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp = code(x, y, z, t)
	tmp = (x / (t - z)) / (y - z);
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := N[(N[(x / N[(t - z), $MachinePrecision]), $MachinePrecision] / N[(y - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\frac{\frac{x}{t - z}}{y - z}
\end{array}
Derivation
  1. Initial program 93.2%

    \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-/.f64N/A

      \[\leadsto \color{blue}{\frac{x}{\left(y - z\right) \cdot \left(t - z\right)}} \]
    2. lift-*.f64N/A

      \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot \left(t - z\right)}} \]
    3. associate-/l/N/A

      \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y - z}} \]
    4. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y - z}} \]
    5. lower-/.f6496.5

      \[\leadsto \frac{\color{blue}{\frac{x}{t - z}}}{y - z} \]
  4. Applied rewrites96.5%

    \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y - z}} \]
  5. Add Preprocessing

Alternative 2: 73.2% accurate, 0.7× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \begin{array}{l} t_1 := \frac{x}{\left(z - y\right) \cdot z}\\ \mathbf{if}\;z \leq -5.2 \cdot 10^{-59}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 7.8 \cdot 10^{-28}:\\ \;\;\;\;\frac{x}{\left(y - z\right) \cdot t}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (/ x (* (- z y) z))))
   (if (<= z -5.2e-59) t_1 (if (<= z 7.8e-28) (/ x (* (- y z) t)) t_1))))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	double t_1 = x / ((z - y) * z);
	double tmp;
	if (z <= -5.2e-59) {
		tmp = t_1;
	} else if (z <= 7.8e-28) {
		tmp = x / ((y - z) * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x / ((z - y) * z)
    if (z <= (-5.2d-59)) then
        tmp = t_1
    else if (z <= 7.8d-28) then
        tmp = x / ((y - z) * t)
    else
        tmp = t_1
    end if
    code = tmp
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	double t_1 = x / ((z - y) * z);
	double tmp;
	if (z <= -5.2e-59) {
		tmp = t_1;
	} else if (z <= 7.8e-28) {
		tmp = x / ((y - z) * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	t_1 = x / ((z - y) * z)
	tmp = 0
	if z <= -5.2e-59:
		tmp = t_1
	elif z <= 7.8e-28:
		tmp = x / ((y - z) * t)
	else:
		tmp = t_1
	return tmp
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	t_1 = Float64(x / Float64(Float64(z - y) * z))
	tmp = 0.0
	if (z <= -5.2e-59)
		tmp = t_1;
	elseif (z <= 7.8e-28)
		tmp = Float64(x / Float64(Float64(y - z) * t));
	else
		tmp = t_1;
	end
	return tmp
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp_2 = code(x, y, z, t)
	t_1 = x / ((z - y) * z);
	tmp = 0.0;
	if (z <= -5.2e-59)
		tmp = t_1;
	elseif (z <= 7.8e-28)
		tmp = x / ((y - z) * t);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(x / N[(N[(z - y), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -5.2e-59], t$95$1, If[LessEqual[z, 7.8e-28], N[(x / N[(N[(y - z), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\begin{array}{l}
t_1 := \frac{x}{\left(z - y\right) \cdot z}\\
\mathbf{if}\;z \leq -5.2 \cdot 10^{-59}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 7.8 \cdot 10^{-28}:\\
\;\;\;\;\frac{x}{\left(y - z\right) \cdot t}\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -5.19999999999999996e-59 or 7.79999999999999998e-28 < z

    1. Initial program 93.0%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t around 0

      \[\leadsto \frac{x}{\color{blue}{-1 \cdot \left(z \cdot \left(y - z\right)\right)}} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \frac{x}{-1 \cdot \color{blue}{\left(\left(y - z\right) \cdot z\right)}} \]
      2. associate-*r*N/A

        \[\leadsto \frac{x}{\color{blue}{\left(-1 \cdot \left(y - z\right)\right) \cdot z}} \]
      3. lower-*.f64N/A

        \[\leadsto \frac{x}{\color{blue}{\left(-1 \cdot \left(y - z\right)\right) \cdot z}} \]
      4. mul-1-negN/A

        \[\leadsto \frac{x}{\color{blue}{\left(\mathsf{neg}\left(\left(y - z\right)\right)\right)} \cdot z} \]
      5. sub-negN/A

        \[\leadsto \frac{x}{\left(\mathsf{neg}\left(\color{blue}{\left(y + \left(\mathsf{neg}\left(z\right)\right)\right)}\right)\right) \cdot z} \]
      6. +-commutativeN/A

        \[\leadsto \frac{x}{\left(\mathsf{neg}\left(\color{blue}{\left(\left(\mathsf{neg}\left(z\right)\right) + y\right)}\right)\right) \cdot z} \]
      7. distribute-neg-inN/A

        \[\leadsto \frac{x}{\color{blue}{\left(\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(z\right)\right)\right)\right) + \left(\mathsf{neg}\left(y\right)\right)\right)} \cdot z} \]
      8. unsub-negN/A

        \[\leadsto \frac{x}{\color{blue}{\left(\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(z\right)\right)\right)\right) - y\right)} \cdot z} \]
      9. remove-double-negN/A

        \[\leadsto \frac{x}{\left(\color{blue}{z} - y\right) \cdot z} \]
      10. lower--.f6485.2

        \[\leadsto \frac{x}{\color{blue}{\left(z - y\right)} \cdot z} \]
    5. Applied rewrites85.2%

      \[\leadsto \frac{x}{\color{blue}{\left(z - y\right) \cdot z}} \]

    if -5.19999999999999996e-59 < z < 7.79999999999999998e-28

    1. Initial program 93.4%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf

      \[\leadsto \frac{x}{\color{blue}{t \cdot \left(y - z\right)}} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
      2. lower-*.f64N/A

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
      3. lower--.f6479.3

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right)} \cdot t} \]
    5. Applied rewrites79.3%

      \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 3: 73.3% accurate, 0.7× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \begin{array}{l} t_1 := \frac{x}{\left(z - t\right) \cdot z}\\ \mathbf{if}\;z \leq -1.2 \cdot 10^{-41}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 5.2 \cdot 10^{-41}:\\ \;\;\;\;\frac{x}{\left(y - z\right) \cdot t}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (/ x (* (- z t) z))))
   (if (<= z -1.2e-41) t_1 (if (<= z 5.2e-41) (/ x (* (- y z) t)) t_1))))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	double t_1 = x / ((z - t) * z);
	double tmp;
	if (z <= -1.2e-41) {
		tmp = t_1;
	} else if (z <= 5.2e-41) {
		tmp = x / ((y - z) * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x / ((z - t) * z)
    if (z <= (-1.2d-41)) then
        tmp = t_1
    else if (z <= 5.2d-41) then
        tmp = x / ((y - z) * t)
    else
        tmp = t_1
    end if
    code = tmp
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	double t_1 = x / ((z - t) * z);
	double tmp;
	if (z <= -1.2e-41) {
		tmp = t_1;
	} else if (z <= 5.2e-41) {
		tmp = x / ((y - z) * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	t_1 = x / ((z - t) * z)
	tmp = 0
	if z <= -1.2e-41:
		tmp = t_1
	elif z <= 5.2e-41:
		tmp = x / ((y - z) * t)
	else:
		tmp = t_1
	return tmp
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	t_1 = Float64(x / Float64(Float64(z - t) * z))
	tmp = 0.0
	if (z <= -1.2e-41)
		tmp = t_1;
	elseif (z <= 5.2e-41)
		tmp = Float64(x / Float64(Float64(y - z) * t));
	else
		tmp = t_1;
	end
	return tmp
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp_2 = code(x, y, z, t)
	t_1 = x / ((z - t) * z);
	tmp = 0.0;
	if (z <= -1.2e-41)
		tmp = t_1;
	elseif (z <= 5.2e-41)
		tmp = x / ((y - z) * t);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(x / N[(N[(z - t), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1.2e-41], t$95$1, If[LessEqual[z, 5.2e-41], N[(x / N[(N[(y - z), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\begin{array}{l}
t_1 := \frac{x}{\left(z - t\right) \cdot z}\\
\mathbf{if}\;z \leq -1.2 \cdot 10^{-41}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 5.2 \cdot 10^{-41}:\\
\;\;\;\;\frac{x}{\left(y - z\right) \cdot t}\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.20000000000000011e-41 or 5.1999999999999999e-41 < z

    1. Initial program 92.9%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0

      \[\leadsto \frac{x}{\color{blue}{-1 \cdot \left(z \cdot \left(t - z\right)\right)}} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \frac{x}{-1 \cdot \color{blue}{\left(\left(t - z\right) \cdot z\right)}} \]
      2. associate-*r*N/A

        \[\leadsto \frac{x}{\color{blue}{\left(-1 \cdot \left(t - z\right)\right) \cdot z}} \]
      3. lower-*.f64N/A

        \[\leadsto \frac{x}{\color{blue}{\left(-1 \cdot \left(t - z\right)\right) \cdot z}} \]
      4. mul-1-negN/A

        \[\leadsto \frac{x}{\color{blue}{\left(\mathsf{neg}\left(\left(t - z\right)\right)\right)} \cdot z} \]
      5. sub-negN/A

        \[\leadsto \frac{x}{\left(\mathsf{neg}\left(\color{blue}{\left(t + \left(\mathsf{neg}\left(z\right)\right)\right)}\right)\right) \cdot z} \]
      6. +-commutativeN/A

        \[\leadsto \frac{x}{\left(\mathsf{neg}\left(\color{blue}{\left(\left(\mathsf{neg}\left(z\right)\right) + t\right)}\right)\right) \cdot z} \]
      7. distribute-neg-inN/A

        \[\leadsto \frac{x}{\color{blue}{\left(\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(z\right)\right)\right)\right) + \left(\mathsf{neg}\left(t\right)\right)\right)} \cdot z} \]
      8. unsub-negN/A

        \[\leadsto \frac{x}{\color{blue}{\left(\left(\mathsf{neg}\left(\left(\mathsf{neg}\left(z\right)\right)\right)\right) - t\right)} \cdot z} \]
      9. remove-double-negN/A

        \[\leadsto \frac{x}{\left(\color{blue}{z} - t\right) \cdot z} \]
      10. lower--.f6486.6

        \[\leadsto \frac{x}{\color{blue}{\left(z - t\right)} \cdot z} \]
    5. Applied rewrites86.6%

      \[\leadsto \frac{x}{\color{blue}{\left(z - t\right) \cdot z}} \]

    if -1.20000000000000011e-41 < z < 5.1999999999999999e-41

    1. Initial program 93.4%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf

      \[\leadsto \frac{x}{\color{blue}{t \cdot \left(y - z\right)}} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
      2. lower-*.f64N/A

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
      3. lower--.f6478.8

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right)} \cdot t} \]
    5. Applied rewrites78.8%

      \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 4: 68.5% accurate, 0.7× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \begin{array}{l} t_1 := \frac{x}{z \cdot z}\\ \mathbf{if}\;z \leq -4.5 \cdot 10^{+51}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 10^{-27}:\\ \;\;\;\;\frac{x}{\left(y - z\right) \cdot t}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (/ x (* z z))))
   (if (<= z -4.5e+51) t_1 (if (<= z 1e-27) (/ x (* (- y z) t)) t_1))))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	double t_1 = x / (z * z);
	double tmp;
	if (z <= -4.5e+51) {
		tmp = t_1;
	} else if (z <= 1e-27) {
		tmp = x / ((y - z) * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x / (z * z)
    if (z <= (-4.5d+51)) then
        tmp = t_1
    else if (z <= 1d-27) then
        tmp = x / ((y - z) * t)
    else
        tmp = t_1
    end if
    code = tmp
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	double t_1 = x / (z * z);
	double tmp;
	if (z <= -4.5e+51) {
		tmp = t_1;
	} else if (z <= 1e-27) {
		tmp = x / ((y - z) * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	t_1 = x / (z * z)
	tmp = 0
	if z <= -4.5e+51:
		tmp = t_1
	elif z <= 1e-27:
		tmp = x / ((y - z) * t)
	else:
		tmp = t_1
	return tmp
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	t_1 = Float64(x / Float64(z * z))
	tmp = 0.0
	if (z <= -4.5e+51)
		tmp = t_1;
	elseif (z <= 1e-27)
		tmp = Float64(x / Float64(Float64(y - z) * t));
	else
		tmp = t_1;
	end
	return tmp
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp_2 = code(x, y, z, t)
	t_1 = x / (z * z);
	tmp = 0.0;
	if (z <= -4.5e+51)
		tmp = t_1;
	elseif (z <= 1e-27)
		tmp = x / ((y - z) * t);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(x / N[(z * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -4.5e+51], t$95$1, If[LessEqual[z, 1e-27], N[(x / N[(N[(y - z), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\begin{array}{l}
t_1 := \frac{x}{z \cdot z}\\
\mathbf{if}\;z \leq -4.5 \cdot 10^{+51}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 10^{-27}:\\
\;\;\;\;\frac{x}{\left(y - z\right) \cdot t}\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -4.5e51 or 1e-27 < z

    1. Initial program 93.1%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf

      \[\leadsto \frac{x}{\color{blue}{{z}^{2}}} \]
    4. Step-by-step derivation
      1. unpow2N/A

        \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]
      2. lower-*.f6484.8

        \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]
    5. Applied rewrites84.8%

      \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]

    if -4.5e51 < z < 1e-27

    1. Initial program 93.2%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf

      \[\leadsto \frac{x}{\color{blue}{t \cdot \left(y - z\right)}} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
      2. lower-*.f64N/A

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
      3. lower--.f6476.9

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right)} \cdot t} \]
    5. Applied rewrites76.9%

      \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot t}} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 5: 68.5% accurate, 0.7× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \begin{array}{l} t_1 := \frac{x}{z \cdot z}\\ \mathbf{if}\;z \leq -1200000:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 2.6 \cdot 10^{-26}:\\ \;\;\;\;\frac{x}{y \cdot \left(t - z\right)}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (/ x (* z z))))
   (if (<= z -1200000.0) t_1 (if (<= z 2.6e-26) (/ x (* y (- t z))) t_1))))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	double t_1 = x / (z * z);
	double tmp;
	if (z <= -1200000.0) {
		tmp = t_1;
	} else if (z <= 2.6e-26) {
		tmp = x / (y * (t - z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x / (z * z)
    if (z <= (-1200000.0d0)) then
        tmp = t_1
    else if (z <= 2.6d-26) then
        tmp = x / (y * (t - z))
    else
        tmp = t_1
    end if
    code = tmp
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	double t_1 = x / (z * z);
	double tmp;
	if (z <= -1200000.0) {
		tmp = t_1;
	} else if (z <= 2.6e-26) {
		tmp = x / (y * (t - z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	t_1 = x / (z * z)
	tmp = 0
	if z <= -1200000.0:
		tmp = t_1
	elif z <= 2.6e-26:
		tmp = x / (y * (t - z))
	else:
		tmp = t_1
	return tmp
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	t_1 = Float64(x / Float64(z * z))
	tmp = 0.0
	if (z <= -1200000.0)
		tmp = t_1;
	elseif (z <= 2.6e-26)
		tmp = Float64(x / Float64(y * Float64(t - z)));
	else
		tmp = t_1;
	end
	return tmp
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp_2 = code(x, y, z, t)
	t_1 = x / (z * z);
	tmp = 0.0;
	if (z <= -1200000.0)
		tmp = t_1;
	elseif (z <= 2.6e-26)
		tmp = x / (y * (t - z));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(x / N[(z * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -1200000.0], t$95$1, If[LessEqual[z, 2.6e-26], N[(x / N[(y * N[(t - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\begin{array}{l}
t_1 := \frac{x}{z \cdot z}\\
\mathbf{if}\;z \leq -1200000:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 2.6 \cdot 10^{-26}:\\
\;\;\;\;\frac{x}{y \cdot \left(t - z\right)}\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.2e6 or 2.6000000000000001e-26 < z

    1. Initial program 92.5%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf

      \[\leadsto \frac{x}{\color{blue}{{z}^{2}}} \]
    4. Step-by-step derivation
      1. unpow2N/A

        \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]
      2. lower-*.f6483.5

        \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]
    5. Applied rewrites83.5%

      \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]

    if -1.2e6 < z < 2.6000000000000001e-26

    1. Initial program 93.8%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf

      \[\leadsto \frac{x}{\color{blue}{y \cdot \left(t - z\right)}} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \frac{x}{\color{blue}{\left(t - z\right) \cdot y}} \]
      2. lower-*.f64N/A

        \[\leadsto \frac{x}{\color{blue}{\left(t - z\right) \cdot y}} \]
      3. lower--.f6475.5

        \[\leadsto \frac{x}{\color{blue}{\left(t - z\right)} \cdot y} \]
    5. Applied rewrites75.5%

      \[\leadsto \frac{x}{\color{blue}{\left(t - z\right) \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification79.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -1200000:\\ \;\;\;\;\frac{x}{z \cdot z}\\ \mathbf{elif}\;z \leq 2.6 \cdot 10^{-26}:\\ \;\;\;\;\frac{x}{y \cdot \left(t - z\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{z \cdot z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 90.8% accurate, 0.7× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \begin{array}{l} \mathbf{if}\;y \leq -3.1 \cdot 10^{+164}:\\ \;\;\;\;\frac{\frac{x}{t - z}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\left(y - z\right) \cdot \left(t - z\right)}\\ \end{array} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t)
 :precision binary64
 (if (<= y -3.1e+164) (/ (/ x (- t z)) y) (/ x (* (- y z) (- t z)))))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -3.1e+164) {
		tmp = (x / (t - z)) / y;
	} else {
		tmp = x / ((y - z) * (t - z));
	}
	return tmp;
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (y <= (-3.1d+164)) then
        tmp = (x / (t - z)) / y
    else
        tmp = x / ((y - z) * (t - z))
    end if
    code = tmp
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -3.1e+164) {
		tmp = (x / (t - z)) / y;
	} else {
		tmp = x / ((y - z) * (t - z));
	}
	return tmp;
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	tmp = 0
	if y <= -3.1e+164:
		tmp = (x / (t - z)) / y
	else:
		tmp = x / ((y - z) * (t - z))
	return tmp
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	tmp = 0.0
	if (y <= -3.1e+164)
		tmp = Float64(Float64(x / Float64(t - z)) / y);
	else
		tmp = Float64(x / Float64(Float64(y - z) * Float64(t - z)));
	end
	return tmp
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (y <= -3.1e+164)
		tmp = (x / (t - z)) / y;
	else
		tmp = x / ((y - z) * (t - z));
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := If[LessEqual[y, -3.1e+164], N[(N[(x / N[(t - z), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision], N[(x / N[(N[(y - z), $MachinePrecision] * N[(t - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.1 \cdot 10^{+164}:\\
\;\;\;\;\frac{\frac{x}{t - z}}{y}\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{\left(y - z\right) \cdot \left(t - z\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.1000000000000002e164

    1. Initial program 89.2%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift-/.f64N/A

        \[\leadsto \color{blue}{\frac{x}{\left(y - z\right) \cdot \left(t - z\right)}} \]
      2. lift-*.f64N/A

        \[\leadsto \frac{x}{\color{blue}{\left(y - z\right) \cdot \left(t - z\right)}} \]
      3. associate-/l/N/A

        \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y - z}} \]
      4. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y - z}} \]
      5. lower-/.f6499.9

        \[\leadsto \frac{\color{blue}{\frac{x}{t - z}}}{y - z} \]
    4. Applied rewrites99.9%

      \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y - z}} \]
    5. Taylor expanded in y around inf

      \[\leadsto \color{blue}{\frac{x}{y \cdot \left(t - z\right)}} \]
    6. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \frac{x}{\color{blue}{\left(t - z\right) \cdot y}} \]
      2. associate-/r*N/A

        \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y}} \]
      3. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y}} \]
      4. lower-/.f64N/A

        \[\leadsto \frac{\color{blue}{\frac{x}{t - z}}}{y} \]
      5. lower--.f6496.7

        \[\leadsto \frac{\frac{x}{\color{blue}{t - z}}}{y} \]
    7. Applied rewrites96.7%

      \[\leadsto \color{blue}{\frac{\frac{x}{t - z}}{y}} \]

    if -3.1000000000000002e164 < y

    1. Initial program 93.7%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 7: 61.4% accurate, 0.8× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \begin{array}{l} t_1 := \frac{x}{z \cdot z}\\ \mathbf{if}\;z \leq -0.0195:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 8 \cdot 10^{-28}:\\ \;\;\;\;\frac{x}{y \cdot t}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (/ x (* z z))))
   (if (<= z -0.0195) t_1 (if (<= z 8e-28) (/ x (* y t)) t_1))))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	double t_1 = x / (z * z);
	double tmp;
	if (z <= -0.0195) {
		tmp = t_1;
	} else if (z <= 8e-28) {
		tmp = x / (y * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x / (z * z)
    if (z <= (-0.0195d0)) then
        tmp = t_1
    else if (z <= 8d-28) then
        tmp = x / (y * t)
    else
        tmp = t_1
    end if
    code = tmp
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	double t_1 = x / (z * z);
	double tmp;
	if (z <= -0.0195) {
		tmp = t_1;
	} else if (z <= 8e-28) {
		tmp = x / (y * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	t_1 = x / (z * z)
	tmp = 0
	if z <= -0.0195:
		tmp = t_1
	elif z <= 8e-28:
		tmp = x / (y * t)
	else:
		tmp = t_1
	return tmp
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	t_1 = Float64(x / Float64(z * z))
	tmp = 0.0
	if (z <= -0.0195)
		tmp = t_1;
	elseif (z <= 8e-28)
		tmp = Float64(x / Float64(y * t));
	else
		tmp = t_1;
	end
	return tmp
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp_2 = code(x, y, z, t)
	t_1 = x / (z * z);
	tmp = 0.0;
	if (z <= -0.0195)
		tmp = t_1;
	elseif (z <= 8e-28)
		tmp = x / (y * t);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(x / N[(z * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -0.0195], t$95$1, If[LessEqual[z, 8e-28], N[(x / N[(y * t), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\begin{array}{l}
t_1 := \frac{x}{z \cdot z}\\
\mathbf{if}\;z \leq -0.0195:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 8 \cdot 10^{-28}:\\
\;\;\;\;\frac{x}{y \cdot t}\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -0.0195 or 7.99999999999999977e-28 < z

    1. Initial program 92.6%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf

      \[\leadsto \frac{x}{\color{blue}{{z}^{2}}} \]
    4. Step-by-step derivation
      1. unpow2N/A

        \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]
      2. lower-*.f6482.9

        \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]
    5. Applied rewrites82.9%

      \[\leadsto \frac{x}{\color{blue}{z \cdot z}} \]

    if -0.0195 < z < 7.99999999999999977e-28

    1. Initial program 93.7%

      \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0

      \[\leadsto \frac{x}{\color{blue}{t \cdot y}} \]
    4. Step-by-step derivation
      1. lower-*.f6465.1

        \[\leadsto \frac{x}{\color{blue}{t \cdot y}} \]
    5. Applied rewrites65.1%

      \[\leadsto \frac{x}{\color{blue}{t \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification73.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -0.0195:\\ \;\;\;\;\frac{x}{z \cdot z}\\ \mathbf{elif}\;z \leq 8 \cdot 10^{-28}:\\ \;\;\;\;\frac{x}{y \cdot t}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{z \cdot z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 88.8% accurate, 1.0× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t) :precision binary64 (/ x (* (- y z) (- t z))))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	return x / ((y - z) * (t - z));
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = x / ((y - z) * (t - z))
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	return x / ((y - z) * (t - z));
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	return x / ((y - z) * (t - z))
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	return Float64(x / Float64(Float64(y - z) * Float64(t - z)))
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp = code(x, y, z, t)
	tmp = x / ((y - z) * (t - z));
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := N[(x / N[(N[(y - z), $MachinePrecision] * N[(t - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\frac{x}{\left(y - z\right) \cdot \left(t - z\right)}
\end{array}
Derivation
  1. Initial program 93.2%

    \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
  2. Add Preprocessing
  3. Add Preprocessing

Alternative 9: 39.1% accurate, 1.4× speedup?

\[\begin{array}{l} [x, y, z, t] = \mathsf{sort}([x, y, z, t])\\ \\ \frac{x}{y \cdot t} \end{array} \]
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
(FPCore (x y z t) :precision binary64 (/ x (* y t)))
assert(x < y && y < z && z < t);
double code(double x, double y, double z, double t) {
	return x / (y * t);
}
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = x / (y * t)
end function
assert x < y && y < z && z < t;
public static double code(double x, double y, double z, double t) {
	return x / (y * t);
}
[x, y, z, t] = sort([x, y, z, t])
def code(x, y, z, t):
	return x / (y * t)
x, y, z, t = sort([x, y, z, t])
function code(x, y, z, t)
	return Float64(x / Float64(y * t))
end
x, y, z, t = num2cell(sort([x, y, z, t])){:}
function tmp = code(x, y, z, t)
	tmp = x / (y * t);
end
NOTE: x, y, z, and t should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_] := N[(x / N[(y * t), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t] = \mathsf{sort}([x, y, z, t])\\
\\
\frac{x}{y \cdot t}
\end{array}
Derivation
  1. Initial program 93.2%

    \[\frac{x}{\left(y - z\right) \cdot \left(t - z\right)} \]
  2. Add Preprocessing
  3. Taylor expanded in z around 0

    \[\leadsto \frac{x}{\color{blue}{t \cdot y}} \]
  4. Step-by-step derivation
    1. lower-*.f6446.7

      \[\leadsto \frac{x}{\color{blue}{t \cdot y}} \]
  5. Applied rewrites46.7%

    \[\leadsto \frac{x}{\color{blue}{t \cdot y}} \]
  6. Final simplification46.7%

    \[\leadsto \frac{x}{y \cdot t} \]
  7. Add Preprocessing

Developer Target 1: 87.5% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(y - z\right) \cdot \left(t - z\right)\\ \mathbf{if}\;\frac{x}{t\_1} < 0:\\ \;\;\;\;\frac{\frac{x}{y - z}}{t - z}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{1}{t\_1}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (* (- y z) (- t z))))
   (if (< (/ x t_1) 0.0) (/ (/ x (- y z)) (- t z)) (* x (/ 1.0 t_1)))))
double code(double x, double y, double z, double t) {
	double t_1 = (y - z) * (t - z);
	double tmp;
	if ((x / t_1) < 0.0) {
		tmp = (x / (y - z)) / (t - z);
	} else {
		tmp = x * (1.0 / t_1);
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = (y - z) * (t - z)
    if ((x / t_1) < 0.0d0) then
        tmp = (x / (y - z)) / (t - z)
    else
        tmp = x * (1.0d0 / t_1)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double t_1 = (y - z) * (t - z);
	double tmp;
	if ((x / t_1) < 0.0) {
		tmp = (x / (y - z)) / (t - z);
	} else {
		tmp = x * (1.0 / t_1);
	}
	return tmp;
}
def code(x, y, z, t):
	t_1 = (y - z) * (t - z)
	tmp = 0
	if (x / t_1) < 0.0:
		tmp = (x / (y - z)) / (t - z)
	else:
		tmp = x * (1.0 / t_1)
	return tmp
function code(x, y, z, t)
	t_1 = Float64(Float64(y - z) * Float64(t - z))
	tmp = 0.0
	if (Float64(x / t_1) < 0.0)
		tmp = Float64(Float64(x / Float64(y - z)) / Float64(t - z));
	else
		tmp = Float64(x * Float64(1.0 / t_1));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	t_1 = (y - z) * (t - z);
	tmp = 0.0;
	if ((x / t_1) < 0.0)
		tmp = (x / (y - z)) / (t - z);
	else
		tmp = x * (1.0 / t_1);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(N[(y - z), $MachinePrecision] * N[(t - z), $MachinePrecision]), $MachinePrecision]}, If[Less[N[(x / t$95$1), $MachinePrecision], 0.0], N[(N[(x / N[(y - z), $MachinePrecision]), $MachinePrecision] / N[(t - z), $MachinePrecision]), $MachinePrecision], N[(x * N[(1.0 / t$95$1), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(y - z\right) \cdot \left(t - z\right)\\
\mathbf{if}\;\frac{x}{t\_1} < 0:\\
\;\;\;\;\frac{\frac{x}{y - z}}{t - z}\\

\mathbf{else}:\\
\;\;\;\;x \cdot \frac{1}{t\_1}\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024332 
(FPCore (x y z t)
  :name "Data.Random.Distribution.Triangular:triangularCDF from random-fu-0.2.6.2, B"
  :precision binary64

  :alt
  (! :herbie-platform default (if (< (/ x (* (- y z) (- t z))) 0) (/ (/ x (- y z)) (- t z)) (* x (/ 1 (* (- y z) (- t z))))))

  (/ x (* (- y z) (- t z))))