Numeric.Signal:interpolate from hsignal-0.2.7.1

Percentage Accurate: 80.4% → 94.5%
Time: 18.1s
Alternatives: 19
Speedup: 0.3×

Specification

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

\\
x + \left(y - z\right) \cdot \frac{t - x}{a - z}
\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 19 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: 80.4% accurate, 1.0× speedup?

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

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

Alternative 1: 94.5% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(y - z\right) \cdot \frac{t - x}{a - z}\\ \mathbf{if}\;t\_1 \leq -4 \cdot 10^{-265}:\\ \;\;\;\;x + \left(t - x\right) \cdot \frac{y - z}{a - z}\\ \mathbf{elif}\;t\_1 \leq 0:\\ \;\;\;\;t - \left(t - x\right) \cdot \frac{y - a}{z}\\ \mathbf{else}:\\ \;\;\;\;x + \frac{t - x}{\frac{a - z}{y - z}}\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (+ x (* (- y z) (/ (- t x) (- a z))))))
   (if (<= t_1 -4e-265)
     (+ x (* (- t x) (/ (- y z) (- a z))))
     (if (<= t_1 0.0)
       (- t (* (- t x) (/ (- y a) z)))
       (+ x (/ (- t x) (/ (- a z) (- y z))))))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x + ((y - z) * ((t - x) / (a - z)));
	double tmp;
	if (t_1 <= -4e-265) {
		tmp = x + ((t - x) * ((y - z) / (a - z)));
	} else if (t_1 <= 0.0) {
		tmp = t - ((t - x) * ((y - a) / z));
	} else {
		tmp = x + ((t - x) / ((a - z) / (y - z)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x + ((y - z) * ((t - x) / (a - z)))
    if (t_1 <= (-4d-265)) then
        tmp = x + ((t - x) * ((y - z) / (a - z)))
    else if (t_1 <= 0.0d0) then
        tmp = t - ((t - x) * ((y - a) / z))
    else
        tmp = x + ((t - x) / ((a - z) / (y - z)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x + ((y - z) * ((t - x) / (a - z)));
	double tmp;
	if (t_1 <= -4e-265) {
		tmp = x + ((t - x) * ((y - z) / (a - z)));
	} else if (t_1 <= 0.0) {
		tmp = t - ((t - x) * ((y - a) / z));
	} else {
		tmp = x + ((t - x) / ((a - z) / (y - z)));
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x + ((y - z) * ((t - x) / (a - z)))
	tmp = 0
	if t_1 <= -4e-265:
		tmp = x + ((t - x) * ((y - z) / (a - z)))
	elif t_1 <= 0.0:
		tmp = t - ((t - x) * ((y - a) / z))
	else:
		tmp = x + ((t - x) / ((a - z) / (y - z)))
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x + Float64(Float64(y - z) * Float64(Float64(t - x) / Float64(a - z))))
	tmp = 0.0
	if (t_1 <= -4e-265)
		tmp = Float64(x + Float64(Float64(t - x) * Float64(Float64(y - z) / Float64(a - z))));
	elseif (t_1 <= 0.0)
		tmp = Float64(t - Float64(Float64(t - x) * Float64(Float64(y - a) / z)));
	else
		tmp = Float64(x + Float64(Float64(t - x) / Float64(Float64(a - z) / Float64(y - z))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x + ((y - z) * ((t - x) / (a - z)));
	tmp = 0.0;
	if (t_1 <= -4e-265)
		tmp = x + ((t - x) * ((y - z) / (a - z)));
	elseif (t_1 <= 0.0)
		tmp = t - ((t - x) * ((y - a) / z));
	else
		tmp = x + ((t - x) / ((a - z) / (y - z)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(N[(y - z), $MachinePrecision] * N[(N[(t - x), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -4e-265], N[(x + N[(N[(t - x), $MachinePrecision] * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 0.0], N[(t - N[(N[(t - x), $MachinePrecision] * N[(N[(y - a), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(t - x), $MachinePrecision] / N[(N[(a - z), $MachinePrecision] / N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(y - z\right) \cdot \frac{t - x}{a - z}\\
\mathbf{if}\;t\_1 \leq -4 \cdot 10^{-265}:\\
\;\;\;\;x + \left(t - x\right) \cdot \frac{y - z}{a - z}\\

\mathbf{elif}\;t\_1 \leq 0:\\
\;\;\;\;t - \left(t - x\right) \cdot \frac{y - a}{z}\\

\mathbf{else}:\\
\;\;\;\;x + \frac{t - x}{\frac{a - z}{y - z}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (+.f64 x (*.f64 (-.f64 y z) (/.f64 (-.f64 t x) (-.f64 a z)))) < -3.99999999999999994e-265

    1. Initial program 93.8%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing

    if -3.99999999999999994e-265 < (+.f64 x (*.f64 (-.f64 y z) (/.f64 (-.f64 t x) (-.f64 a z)))) < 0.0

    1. Initial program 4.0%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
    5. Applied egg-rr0

      \[\leadsto expr\]
    6. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]

    if 0.0 < (+.f64 x (*.f64 (-.f64 y z) (/.f64 (-.f64 t x) (-.f64 a z))))

    1. Initial program 89.2%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 2: 94.5% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(t - x\right) \cdot \frac{y - z}{a - z}\\ t_2 := x + \left(y - z\right) \cdot \frac{t - x}{a - z}\\ \mathbf{if}\;t\_2 \leq -4 \cdot 10^{-265}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t\_2 \leq 0:\\ \;\;\;\;t - \left(t - x\right) \cdot \frac{y - a}{z}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (+ x (* (- t x) (/ (- y z) (- a z)))))
        (t_2 (+ x (* (- y z) (/ (- t x) (- a z))))))
   (if (<= t_2 -4e-265)
     t_1
     (if (<= t_2 0.0) (- t (* (- t x) (/ (- y a) z))) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x + ((t - x) * ((y - z) / (a - z)));
	double t_2 = x + ((y - z) * ((t - x) / (a - z)));
	double tmp;
	if (t_2 <= -4e-265) {
		tmp = t_1;
	} else if (t_2 <= 0.0) {
		tmp = t - ((t - x) * ((y - a) / z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = x + ((t - x) * ((y - z) / (a - z)))
    t_2 = x + ((y - z) * ((t - x) / (a - z)))
    if (t_2 <= (-4d-265)) then
        tmp = t_1
    else if (t_2 <= 0.0d0) then
        tmp = t - ((t - x) * ((y - a) / z))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x + ((t - x) * ((y - z) / (a - z)));
	double t_2 = x + ((y - z) * ((t - x) / (a - z)));
	double tmp;
	if (t_2 <= -4e-265) {
		tmp = t_1;
	} else if (t_2 <= 0.0) {
		tmp = t - ((t - x) * ((y - a) / z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x + ((t - x) * ((y - z) / (a - z)))
	t_2 = x + ((y - z) * ((t - x) / (a - z)))
	tmp = 0
	if t_2 <= -4e-265:
		tmp = t_1
	elif t_2 <= 0.0:
		tmp = t - ((t - x) * ((y - a) / z))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x + Float64(Float64(t - x) * Float64(Float64(y - z) / Float64(a - z))))
	t_2 = Float64(x + Float64(Float64(y - z) * Float64(Float64(t - x) / Float64(a - z))))
	tmp = 0.0
	if (t_2 <= -4e-265)
		tmp = t_1;
	elseif (t_2 <= 0.0)
		tmp = Float64(t - Float64(Float64(t - x) * Float64(Float64(y - a) / z)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x + ((t - x) * ((y - z) / (a - z)));
	t_2 = x + ((y - z) * ((t - x) / (a - z)));
	tmp = 0.0;
	if (t_2 <= -4e-265)
		tmp = t_1;
	elseif (t_2 <= 0.0)
		tmp = t - ((t - x) * ((y - a) / z));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(N[(t - x), $MachinePrecision] * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(N[(y - z), $MachinePrecision] * N[(N[(t - x), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -4e-265], t$95$1, If[LessEqual[t$95$2, 0.0], N[(t - N[(N[(t - x), $MachinePrecision] * N[(N[(y - a), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(t - x\right) \cdot \frac{y - z}{a - z}\\
t_2 := x + \left(y - z\right) \cdot \frac{t - x}{a - z}\\
\mathbf{if}\;t\_2 \leq -4 \cdot 10^{-265}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t\_2 \leq 0:\\
\;\;\;\;t - \left(t - x\right) \cdot \frac{y - a}{z}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (+.f64 x (*.f64 (-.f64 y z) (/.f64 (-.f64 t x) (-.f64 a z)))) < -3.99999999999999994e-265 or 0.0 < (+.f64 x (*.f64 (-.f64 y z) (/.f64 (-.f64 t x) (-.f64 a z))))

    1. Initial program 91.4%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing

    if -3.99999999999999994e-265 < (+.f64 x (*.f64 (-.f64 y z) (/.f64 (-.f64 t x) (-.f64 a z)))) < 0.0

    1. Initial program 4.0%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
    5. Applied egg-rr0

      \[\leadsto expr\]
    6. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 3: 37.0% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -6.4 \cdot 10^{+43}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq -4 \cdot 10^{+24}:\\ \;\;\;\;y \cdot \frac{t}{a}\\ \mathbf{elif}\;a \leq -5.2 \cdot 10^{-51}:\\ \;\;\;\;t\\ \mathbf{elif}\;a \leq -4.4 \cdot 10^{-160}:\\ \;\;\;\;\frac{t \cdot y}{a}\\ \mathbf{elif}\;a \leq -2.95 \cdot 10^{-272}:\\ \;\;\;\;\frac{x \cdot y}{z}\\ \mathbf{elif}\;a \leq 1700:\\ \;\;\;\;t\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= a -6.4e+43)
   x
   (if (<= a -4e+24)
     (* y (/ t a))
     (if (<= a -5.2e-51)
       t
       (if (<= a -4.4e-160)
         (/ (* t y) a)
         (if (<= a -2.95e-272) (/ (* x y) z) (if (<= a 1700.0) t x)))))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (a <= -6.4e+43) {
		tmp = x;
	} else if (a <= -4e+24) {
		tmp = y * (t / a);
	} else if (a <= -5.2e-51) {
		tmp = t;
	} else if (a <= -4.4e-160) {
		tmp = (t * y) / a;
	} else if (a <= -2.95e-272) {
		tmp = (x * y) / z;
	} else if (a <= 1700.0) {
		tmp = t;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (a <= (-6.4d+43)) then
        tmp = x
    else if (a <= (-4d+24)) then
        tmp = y * (t / a)
    else if (a <= (-5.2d-51)) then
        tmp = t
    else if (a <= (-4.4d-160)) then
        tmp = (t * y) / a
    else if (a <= (-2.95d-272)) then
        tmp = (x * y) / z
    else if (a <= 1700.0d0) then
        tmp = t
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (a <= -6.4e+43) {
		tmp = x;
	} else if (a <= -4e+24) {
		tmp = y * (t / a);
	} else if (a <= -5.2e-51) {
		tmp = t;
	} else if (a <= -4.4e-160) {
		tmp = (t * y) / a;
	} else if (a <= -2.95e-272) {
		tmp = (x * y) / z;
	} else if (a <= 1700.0) {
		tmp = t;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if a <= -6.4e+43:
		tmp = x
	elif a <= -4e+24:
		tmp = y * (t / a)
	elif a <= -5.2e-51:
		tmp = t
	elif a <= -4.4e-160:
		tmp = (t * y) / a
	elif a <= -2.95e-272:
		tmp = (x * y) / z
	elif a <= 1700.0:
		tmp = t
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (a <= -6.4e+43)
		tmp = x;
	elseif (a <= -4e+24)
		tmp = Float64(y * Float64(t / a));
	elseif (a <= -5.2e-51)
		tmp = t;
	elseif (a <= -4.4e-160)
		tmp = Float64(Float64(t * y) / a);
	elseif (a <= -2.95e-272)
		tmp = Float64(Float64(x * y) / z);
	elseif (a <= 1700.0)
		tmp = t;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (a <= -6.4e+43)
		tmp = x;
	elseif (a <= -4e+24)
		tmp = y * (t / a);
	elseif (a <= -5.2e-51)
		tmp = t;
	elseif (a <= -4.4e-160)
		tmp = (t * y) / a;
	elseif (a <= -2.95e-272)
		tmp = (x * y) / z;
	elseif (a <= 1700.0)
		tmp = t;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[a, -6.4e+43], x, If[LessEqual[a, -4e+24], N[(y * N[(t / a), $MachinePrecision]), $MachinePrecision], If[LessEqual[a, -5.2e-51], t, If[LessEqual[a, -4.4e-160], N[(N[(t * y), $MachinePrecision] / a), $MachinePrecision], If[LessEqual[a, -2.95e-272], N[(N[(x * y), $MachinePrecision] / z), $MachinePrecision], If[LessEqual[a, 1700.0], t, x]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -6.4 \cdot 10^{+43}:\\
\;\;\;\;x\\

\mathbf{elif}\;a \leq -4 \cdot 10^{+24}:\\
\;\;\;\;y \cdot \frac{t}{a}\\

\mathbf{elif}\;a \leq -5.2 \cdot 10^{-51}:\\
\;\;\;\;t\\

\mathbf{elif}\;a \leq -4.4 \cdot 10^{-160}:\\
\;\;\;\;\frac{t \cdot y}{a}\\

\mathbf{elif}\;a \leq -2.95 \cdot 10^{-272}:\\
\;\;\;\;\frac{x \cdot y}{z}\\

\mathbf{elif}\;a \leq 1700:\\
\;\;\;\;t\\

\mathbf{else}:\\
\;\;\;\;x\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if a < -6.40000000000000029e43 or 1700 < a

    1. Initial program 85.2%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -6.40000000000000029e43 < a < -3.9999999999999999e24

    1. Initial program 99.5%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    8. Simplified0

      \[\leadsto expr\]

    if -3.9999999999999999e24 < a < -5.2e-51 or -2.95e-272 < a < 1700

    1. Initial program 77.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -5.2e-51 < a < -4.4e-160

    1. Initial program 87.8%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
    6. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]

    if -4.4e-160 < a < -2.95e-272

    1. Initial program 71.4%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in t around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
    6. Taylor expanded in a around 0 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]
    8. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    9. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 4: 79.3% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t - \left(t - x\right) \cdot \frac{y - a}{z}\\ \mathbf{if}\;z \leq -6.3 \cdot 10^{+69}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 7.8 \cdot 10^{-120}:\\ \;\;\;\;x + \frac{t - x}{\frac{a - z}{y}}\\ \mathbf{elif}\;z \leq 2.6 \cdot 10^{+81}:\\ \;\;\;\;x + \frac{t - x}{\frac{a}{y - z}}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (- t (* (- t x) (/ (- y a) z)))))
   (if (<= z -6.3e+69)
     t_1
     (if (<= z 7.8e-120)
       (+ x (/ (- t x) (/ (- a z) y)))
       (if (<= z 2.6e+81) (+ x (/ (- t x) (/ a (- y z)))) t_1)))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = t - ((t - x) * ((y - a) / z));
	double tmp;
	if (z <= -6.3e+69) {
		tmp = t_1;
	} else if (z <= 7.8e-120) {
		tmp = x + ((t - x) / ((a - z) / y));
	} else if (z <= 2.6e+81) {
		tmp = x + ((t - x) / (a / (y - z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = t - ((t - x) * ((y - a) / z))
    if (z <= (-6.3d+69)) then
        tmp = t_1
    else if (z <= 7.8d-120) then
        tmp = x + ((t - x) / ((a - z) / y))
    else if (z <= 2.6d+81) then
        tmp = x + ((t - x) / (a / (y - z)))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = t - ((t - x) * ((y - a) / z));
	double tmp;
	if (z <= -6.3e+69) {
		tmp = t_1;
	} else if (z <= 7.8e-120) {
		tmp = x + ((t - x) / ((a - z) / y));
	} else if (z <= 2.6e+81) {
		tmp = x + ((t - x) / (a / (y - z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = t - ((t - x) * ((y - a) / z))
	tmp = 0
	if z <= -6.3e+69:
		tmp = t_1
	elif z <= 7.8e-120:
		tmp = x + ((t - x) / ((a - z) / y))
	elif z <= 2.6e+81:
		tmp = x + ((t - x) / (a / (y - z)))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(t - Float64(Float64(t - x) * Float64(Float64(y - a) / z)))
	tmp = 0.0
	if (z <= -6.3e+69)
		tmp = t_1;
	elseif (z <= 7.8e-120)
		tmp = Float64(x + Float64(Float64(t - x) / Float64(Float64(a - z) / y)));
	elseif (z <= 2.6e+81)
		tmp = Float64(x + Float64(Float64(t - x) / Float64(a / Float64(y - z))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = t - ((t - x) * ((y - a) / z));
	tmp = 0.0;
	if (z <= -6.3e+69)
		tmp = t_1;
	elseif (z <= 7.8e-120)
		tmp = x + ((t - x) / ((a - z) / y));
	elseif (z <= 2.6e+81)
		tmp = x + ((t - x) / (a / (y - z)));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t - N[(N[(t - x), $MachinePrecision] * N[(N[(y - a), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -6.3e+69], t$95$1, If[LessEqual[z, 7.8e-120], N[(x + N[(N[(t - x), $MachinePrecision] / N[(N[(a - z), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 2.6e+81], N[(x + N[(N[(t - x), $MachinePrecision] / N[(a / N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t - \left(t - x\right) \cdot \frac{y - a}{z}\\
\mathbf{if}\;z \leq -6.3 \cdot 10^{+69}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 7.8 \cdot 10^{-120}:\\
\;\;\;\;x + \frac{t - x}{\frac{a - z}{y}}\\

\mathbf{elif}\;z \leq 2.6 \cdot 10^{+81}:\\
\;\;\;\;x + \frac{t - x}{\frac{a}{y - z}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -6.30000000000000007e69 or 2.59999999999999992e81 < z

    1. Initial program 60.7%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
    5. Applied egg-rr0

      \[\leadsto expr\]
    6. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]

    if -6.30000000000000007e69 < z < 7.8000000000000003e-120

    1. Initial program 93.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 7.8000000000000003e-120 < z < 2.59999999999999992e81

    1. Initial program 97.1%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 5: 73.1% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \frac{y - z}{a - z}\\ \mathbf{if}\;z \leq -5 \cdot 10^{+25}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 7.8 \cdot 10^{-120}:\\ \;\;\;\;x + \frac{t - x}{\frac{a - z}{y}}\\ \mathbf{elif}\;z \leq 1.15 \cdot 10^{+77}:\\ \;\;\;\;x + \frac{t - x}{\frac{a}{y - z}}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* t (/ (- y z) (- a z)))))
   (if (<= z -5e+25)
     t_1
     (if (<= z 7.8e-120)
       (+ x (/ (- t x) (/ (- a z) y)))
       (if (<= z 1.15e+77) (+ x (/ (- t x) (/ a (- y z)))) t_1)))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -5e+25) {
		tmp = t_1;
	} else if (z <= 7.8e-120) {
		tmp = x + ((t - x) / ((a - z) / y));
	} else if (z <= 1.15e+77) {
		tmp = x + ((t - x) / (a / (y - z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = t * ((y - z) / (a - z))
    if (z <= (-5d+25)) then
        tmp = t_1
    else if (z <= 7.8d-120) then
        tmp = x + ((t - x) / ((a - z) / y))
    else if (z <= 1.15d+77) then
        tmp = x + ((t - x) / (a / (y - z)))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -5e+25) {
		tmp = t_1;
	} else if (z <= 7.8e-120) {
		tmp = x + ((t - x) / ((a - z) / y));
	} else if (z <= 1.15e+77) {
		tmp = x + ((t - x) / (a / (y - z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = t * ((y - z) / (a - z))
	tmp = 0
	if z <= -5e+25:
		tmp = t_1
	elif z <= 7.8e-120:
		tmp = x + ((t - x) / ((a - z) / y))
	elif z <= 1.15e+77:
		tmp = x + ((t - x) / (a / (y - z)))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(t * Float64(Float64(y - z) / Float64(a - z)))
	tmp = 0.0
	if (z <= -5e+25)
		tmp = t_1;
	elseif (z <= 7.8e-120)
		tmp = Float64(x + Float64(Float64(t - x) / Float64(Float64(a - z) / y)));
	elseif (z <= 1.15e+77)
		tmp = Float64(x + Float64(Float64(t - x) / Float64(a / Float64(y - z))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = t * ((y - z) / (a - z));
	tmp = 0.0;
	if (z <= -5e+25)
		tmp = t_1;
	elseif (z <= 7.8e-120)
		tmp = x + ((t - x) / ((a - z) / y));
	elseif (z <= 1.15e+77)
		tmp = x + ((t - x) / (a / (y - z)));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -5e+25], t$95$1, If[LessEqual[z, 7.8e-120], N[(x + N[(N[(t - x), $MachinePrecision] / N[(N[(a - z), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 1.15e+77], N[(x + N[(N[(t - x), $MachinePrecision] / N[(a / N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \frac{y - z}{a - z}\\
\mathbf{if}\;z \leq -5 \cdot 10^{+25}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 7.8 \cdot 10^{-120}:\\
\;\;\;\;x + \frac{t - x}{\frac{a - z}{y}}\\

\mathbf{elif}\;z \leq 1.15 \cdot 10^{+77}:\\
\;\;\;\;x + \frac{t - x}{\frac{a}{y - z}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -5.00000000000000024e25 or 1.14999999999999997e77 < z

    1. Initial program 65.7%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -5.00000000000000024e25 < z < 7.8000000000000003e-120

    1. Initial program 93.2%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 7.8000000000000003e-120 < z < 1.14999999999999997e77

    1. Initial program 96.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 6: 72.0% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \frac{y - z}{a - z}\\ \mathbf{if}\;z \leq -4.5 \cdot 10^{+25}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 7.2 \cdot 10^{-121}:\\ \;\;\;\;x + y \cdot \frac{t - x}{a - z}\\ \mathbf{elif}\;z \leq 1.8 \cdot 10^{+77}:\\ \;\;\;\;x + \frac{t - x}{\frac{a}{y - z}}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* t (/ (- y z) (- a z)))))
   (if (<= z -4.5e+25)
     t_1
     (if (<= z 7.2e-121)
       (+ x (* y (/ (- t x) (- a z))))
       (if (<= z 1.8e+77) (+ x (/ (- t x) (/ a (- y z)))) t_1)))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -4.5e+25) {
		tmp = t_1;
	} else if (z <= 7.2e-121) {
		tmp = x + (y * ((t - x) / (a - z)));
	} else if (z <= 1.8e+77) {
		tmp = x + ((t - x) / (a / (y - z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = t * ((y - z) / (a - z))
    if (z <= (-4.5d+25)) then
        tmp = t_1
    else if (z <= 7.2d-121) then
        tmp = x + (y * ((t - x) / (a - z)))
    else if (z <= 1.8d+77) then
        tmp = x + ((t - x) / (a / (y - z)))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -4.5e+25) {
		tmp = t_1;
	} else if (z <= 7.2e-121) {
		tmp = x + (y * ((t - x) / (a - z)));
	} else if (z <= 1.8e+77) {
		tmp = x + ((t - x) / (a / (y - z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = t * ((y - z) / (a - z))
	tmp = 0
	if z <= -4.5e+25:
		tmp = t_1
	elif z <= 7.2e-121:
		tmp = x + (y * ((t - x) / (a - z)))
	elif z <= 1.8e+77:
		tmp = x + ((t - x) / (a / (y - z)))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(t * Float64(Float64(y - z) / Float64(a - z)))
	tmp = 0.0
	if (z <= -4.5e+25)
		tmp = t_1;
	elseif (z <= 7.2e-121)
		tmp = Float64(x + Float64(y * Float64(Float64(t - x) / Float64(a - z))));
	elseif (z <= 1.8e+77)
		tmp = Float64(x + Float64(Float64(t - x) / Float64(a / Float64(y - z))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = t * ((y - z) / (a - z));
	tmp = 0.0;
	if (z <= -4.5e+25)
		tmp = t_1;
	elseif (z <= 7.2e-121)
		tmp = x + (y * ((t - x) / (a - z)));
	elseif (z <= 1.8e+77)
		tmp = x + ((t - x) / (a / (y - z)));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -4.5e+25], t$95$1, If[LessEqual[z, 7.2e-121], N[(x + N[(y * N[(N[(t - x), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 1.8e+77], N[(x + N[(N[(t - x), $MachinePrecision] / N[(a / N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \frac{y - z}{a - z}\\
\mathbf{if}\;z \leq -4.5 \cdot 10^{+25}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 7.2 \cdot 10^{-121}:\\
\;\;\;\;x + y \cdot \frac{t - x}{a - z}\\

\mathbf{elif}\;z \leq 1.8 \cdot 10^{+77}:\\
\;\;\;\;x + \frac{t - x}{\frac{a}{y - z}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -4.5000000000000003e25 or 1.7999999999999999e77 < z

    1. Initial program 65.7%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -4.5000000000000003e25 < z < 7.19999999999999967e-121

    1. Initial program 93.2%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 7.19999999999999967e-121 < z < 1.7999999999999999e77

    1. Initial program 96.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Applied egg-rr0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 7: 72.0% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \frac{y - z}{a - z}\\ \mathbf{if}\;z \leq -4.5 \cdot 10^{+25}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 4.5 \cdot 10^{-119}:\\ \;\;\;\;x + y \cdot \frac{t - x}{a - z}\\ \mathbf{elif}\;z \leq 2.5 \cdot 10^{+78}:\\ \;\;\;\;x + \left(t - x\right) \cdot \frac{y - z}{a}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* t (/ (- y z) (- a z)))))
   (if (<= z -4.5e+25)
     t_1
     (if (<= z 4.5e-119)
       (+ x (* y (/ (- t x) (- a z))))
       (if (<= z 2.5e+78) (+ x (* (- t x) (/ (- y z) a))) t_1)))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -4.5e+25) {
		tmp = t_1;
	} else if (z <= 4.5e-119) {
		tmp = x + (y * ((t - x) / (a - z)));
	} else if (z <= 2.5e+78) {
		tmp = x + ((t - x) * ((y - z) / a));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = t * ((y - z) / (a - z))
    if (z <= (-4.5d+25)) then
        tmp = t_1
    else if (z <= 4.5d-119) then
        tmp = x + (y * ((t - x) / (a - z)))
    else if (z <= 2.5d+78) then
        tmp = x + ((t - x) * ((y - z) / a))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -4.5e+25) {
		tmp = t_1;
	} else if (z <= 4.5e-119) {
		tmp = x + (y * ((t - x) / (a - z)));
	} else if (z <= 2.5e+78) {
		tmp = x + ((t - x) * ((y - z) / a));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = t * ((y - z) / (a - z))
	tmp = 0
	if z <= -4.5e+25:
		tmp = t_1
	elif z <= 4.5e-119:
		tmp = x + (y * ((t - x) / (a - z)))
	elif z <= 2.5e+78:
		tmp = x + ((t - x) * ((y - z) / a))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(t * Float64(Float64(y - z) / Float64(a - z)))
	tmp = 0.0
	if (z <= -4.5e+25)
		tmp = t_1;
	elseif (z <= 4.5e-119)
		tmp = Float64(x + Float64(y * Float64(Float64(t - x) / Float64(a - z))));
	elseif (z <= 2.5e+78)
		tmp = Float64(x + Float64(Float64(t - x) * Float64(Float64(y - z) / a)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = t * ((y - z) / (a - z));
	tmp = 0.0;
	if (z <= -4.5e+25)
		tmp = t_1;
	elseif (z <= 4.5e-119)
		tmp = x + (y * ((t - x) / (a - z)));
	elseif (z <= 2.5e+78)
		tmp = x + ((t - x) * ((y - z) / a));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -4.5e+25], t$95$1, If[LessEqual[z, 4.5e-119], N[(x + N[(y * N[(N[(t - x), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 2.5e+78], N[(x + N[(N[(t - x), $MachinePrecision] * N[(N[(y - z), $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \frac{y - z}{a - z}\\
\mathbf{if}\;z \leq -4.5 \cdot 10^{+25}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 4.5 \cdot 10^{-119}:\\
\;\;\;\;x + y \cdot \frac{t - x}{a - z}\\

\mathbf{elif}\;z \leq 2.5 \cdot 10^{+78}:\\
\;\;\;\;x + \left(t - x\right) \cdot \frac{y - z}{a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -4.5000000000000003e25 or 2.49999999999999992e78 < z

    1. Initial program 65.7%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -4.5000000000000003e25 < z < 4.5000000000000003e-119

    1. Initial program 93.2%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 4.5000000000000003e-119 < z < 2.49999999999999992e78

    1. Initial program 96.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 8: 67.0% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \frac{y - z}{a - z}\\ \mathbf{if}\;z \leq -4 \cdot 10^{+23}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq -7.2 \cdot 10^{-90}:\\ \;\;\;\;\frac{y \cdot \left(t - x\right)}{a - z}\\ \mathbf{elif}\;z \leq 2.8 \cdot 10^{-29}:\\ \;\;\;\;\frac{t - x}{\frac{a}{y}} + x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* t (/ (- y z) (- a z)))))
   (if (<= z -4e+23)
     t_1
     (if (<= z -7.2e-90)
       (/ (* y (- t x)) (- a z))
       (if (<= z 2.8e-29) (+ (/ (- t x) (/ a y)) x) t_1)))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -4e+23) {
		tmp = t_1;
	} else if (z <= -7.2e-90) {
		tmp = (y * (t - x)) / (a - z);
	} else if (z <= 2.8e-29) {
		tmp = ((t - x) / (a / y)) + x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = t * ((y - z) / (a - z))
    if (z <= (-4d+23)) then
        tmp = t_1
    else if (z <= (-7.2d-90)) then
        tmp = (y * (t - x)) / (a - z)
    else if (z <= 2.8d-29) then
        tmp = ((t - x) / (a / y)) + x
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -4e+23) {
		tmp = t_1;
	} else if (z <= -7.2e-90) {
		tmp = (y * (t - x)) / (a - z);
	} else if (z <= 2.8e-29) {
		tmp = ((t - x) / (a / y)) + x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = t * ((y - z) / (a - z))
	tmp = 0
	if z <= -4e+23:
		tmp = t_1
	elif z <= -7.2e-90:
		tmp = (y * (t - x)) / (a - z)
	elif z <= 2.8e-29:
		tmp = ((t - x) / (a / y)) + x
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(t * Float64(Float64(y - z) / Float64(a - z)))
	tmp = 0.0
	if (z <= -4e+23)
		tmp = t_1;
	elseif (z <= -7.2e-90)
		tmp = Float64(Float64(y * Float64(t - x)) / Float64(a - z));
	elseif (z <= 2.8e-29)
		tmp = Float64(Float64(Float64(t - x) / Float64(a / y)) + x);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = t * ((y - z) / (a - z));
	tmp = 0.0;
	if (z <= -4e+23)
		tmp = t_1;
	elseif (z <= -7.2e-90)
		tmp = (y * (t - x)) / (a - z);
	elseif (z <= 2.8e-29)
		tmp = ((t - x) / (a / y)) + x;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -4e+23], t$95$1, If[LessEqual[z, -7.2e-90], N[(N[(y * N[(t - x), $MachinePrecision]), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 2.8e-29], N[(N[(N[(t - x), $MachinePrecision] / N[(a / y), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \frac{y - z}{a - z}\\
\mathbf{if}\;z \leq -4 \cdot 10^{+23}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq -7.2 \cdot 10^{-90}:\\
\;\;\;\;\frac{y \cdot \left(t - x\right)}{a - z}\\

\mathbf{elif}\;z \leq 2.8 \cdot 10^{-29}:\\
\;\;\;\;\frac{t - x}{\frac{a}{y}} + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -3.9999999999999997e23 or 2.8000000000000002e-29 < z

    1. Initial program 71.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -3.9999999999999997e23 < z < -7.19999999999999961e-90

    1. Initial program 82.6%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -7.19999999999999961e-90 < z < 2.8000000000000002e-29

    1. Initial program 97.0%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
    6. Applied egg-rr0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 9: 49.1% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -1.65 \cdot 10^{+90}:\\ \;\;\;\;t\\ \mathbf{elif}\;z \leq -1.55 \cdot 10^{-90}:\\ \;\;\;\;\left(x - t\right) \cdot \frac{y}{z}\\ \mathbf{elif}\;z \leq 4 \cdot 10^{+79}:\\ \;\;\;\;x \cdot \left(1 - \frac{y}{a}\right)\\ \mathbf{else}:\\ \;\;\;\;t\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= z -1.65e+90)
   t
   (if (<= z -1.55e-90)
     (* (- x t) (/ y z))
     (if (<= z 4e+79) (* x (- 1.0 (/ y a))) t))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -1.65e+90) {
		tmp = t;
	} else if (z <= -1.55e-90) {
		tmp = (x - t) * (y / z);
	} else if (z <= 4e+79) {
		tmp = x * (1.0 - (y / a));
	} else {
		tmp = t;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (z <= (-1.65d+90)) then
        tmp = t
    else if (z <= (-1.55d-90)) then
        tmp = (x - t) * (y / z)
    else if (z <= 4d+79) then
        tmp = x * (1.0d0 - (y / a))
    else
        tmp = t
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -1.65e+90) {
		tmp = t;
	} else if (z <= -1.55e-90) {
		tmp = (x - t) * (y / z);
	} else if (z <= 4e+79) {
		tmp = x * (1.0 - (y / a));
	} else {
		tmp = t;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if z <= -1.65e+90:
		tmp = t
	elif z <= -1.55e-90:
		tmp = (x - t) * (y / z)
	elif z <= 4e+79:
		tmp = x * (1.0 - (y / a))
	else:
		tmp = t
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (z <= -1.65e+90)
		tmp = t;
	elseif (z <= -1.55e-90)
		tmp = Float64(Float64(x - t) * Float64(y / z));
	elseif (z <= 4e+79)
		tmp = Float64(x * Float64(1.0 - Float64(y / a)));
	else
		tmp = t;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (z <= -1.65e+90)
		tmp = t;
	elseif (z <= -1.55e-90)
		tmp = (x - t) * (y / z);
	elseif (z <= 4e+79)
		tmp = x * (1.0 - (y / a));
	else
		tmp = t;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[z, -1.65e+90], t, If[LessEqual[z, -1.55e-90], N[(N[(x - t), $MachinePrecision] * N[(y / z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 4e+79], N[(x * N[(1.0 - N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.65 \cdot 10^{+90}:\\
\;\;\;\;t\\

\mathbf{elif}\;z \leq -1.55 \cdot 10^{-90}:\\
\;\;\;\;\left(x - t\right) \cdot \frac{y}{z}\\

\mathbf{elif}\;z \leq 4 \cdot 10^{+79}:\\
\;\;\;\;x \cdot \left(1 - \frac{y}{a}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -1.65000000000000004e90 or 3.99999999999999987e79 < z

    1. Initial program 60.3%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -1.65000000000000004e90 < z < -1.5500000000000001e-90

    1. Initial program 89.3%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -1.5500000000000001e-90 < z < 3.99999999999999987e79

    1. Initial program 96.5%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
    6. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 10: 73.8% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \frac{y - z}{a - z}\\ \mathbf{if}\;z \leq -3.7 \cdot 10^{+25}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 1.6 \cdot 10^{+78}:\\ \;\;\;\;x + y \cdot \frac{t - x}{a - z}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* t (/ (- y z) (- a z)))))
   (if (<= z -3.7e+25)
     t_1
     (if (<= z 1.6e+78) (+ x (* y (/ (- t x) (- a z)))) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -3.7e+25) {
		tmp = t_1;
	} else if (z <= 1.6e+78) {
		tmp = x + (y * ((t - x) / (a - z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = t * ((y - z) / (a - z))
    if (z <= (-3.7d+25)) then
        tmp = t_1
    else if (z <= 1.6d+78) then
        tmp = x + (y * ((t - x) / (a - z)))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -3.7e+25) {
		tmp = t_1;
	} else if (z <= 1.6e+78) {
		tmp = x + (y * ((t - x) / (a - z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = t * ((y - z) / (a - z))
	tmp = 0
	if z <= -3.7e+25:
		tmp = t_1
	elif z <= 1.6e+78:
		tmp = x + (y * ((t - x) / (a - z)))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(t * Float64(Float64(y - z) / Float64(a - z)))
	tmp = 0.0
	if (z <= -3.7e+25)
		tmp = t_1;
	elseif (z <= 1.6e+78)
		tmp = Float64(x + Float64(y * Float64(Float64(t - x) / Float64(a - z))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = t * ((y - z) / (a - z));
	tmp = 0.0;
	if (z <= -3.7e+25)
		tmp = t_1;
	elseif (z <= 1.6e+78)
		tmp = x + (y * ((t - x) / (a - z)));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -3.7e+25], t$95$1, If[LessEqual[z, 1.6e+78], N[(x + N[(y * N[(N[(t - x), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \frac{y - z}{a - z}\\
\mathbf{if}\;z \leq -3.7 \cdot 10^{+25}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 1.6 \cdot 10^{+78}:\\
\;\;\;\;x + y \cdot \frac{t - x}{a - z}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.6999999999999999e25 or 1.59999999999999997e78 < z

    1. Initial program 65.7%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -3.6999999999999999e25 < z < 1.59999999999999997e78

    1. Initial program 94.4%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 11: 67.9% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \frac{y - z}{a - z}\\ \mathbf{if}\;z \leq -3.7 \cdot 10^{+25}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;z \leq 5.4 \cdot 10^{-28}:\\ \;\;\;\;x + \left(t - x\right) \cdot \frac{y}{a}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* t (/ (- y z) (- a z)))))
   (if (<= z -3.7e+25) t_1 (if (<= z 5.4e-28) (+ x (* (- t x) (/ y a))) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -3.7e+25) {
		tmp = t_1;
	} else if (z <= 5.4e-28) {
		tmp = x + ((t - x) * (y / a));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = t * ((y - z) / (a - z))
    if (z <= (-3.7d+25)) then
        tmp = t_1
    else if (z <= 5.4d-28) then
        tmp = x + ((t - x) * (y / a))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = t * ((y - z) / (a - z));
	double tmp;
	if (z <= -3.7e+25) {
		tmp = t_1;
	} else if (z <= 5.4e-28) {
		tmp = x + ((t - x) * (y / a));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = t * ((y - z) / (a - z))
	tmp = 0
	if z <= -3.7e+25:
		tmp = t_1
	elif z <= 5.4e-28:
		tmp = x + ((t - x) * (y / a))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(t * Float64(Float64(y - z) / Float64(a - z)))
	tmp = 0.0
	if (z <= -3.7e+25)
		tmp = t_1;
	elseif (z <= 5.4e-28)
		tmp = Float64(x + Float64(Float64(t - x) * Float64(y / a)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = t * ((y - z) / (a - z));
	tmp = 0.0;
	if (z <= -3.7e+25)
		tmp = t_1;
	elseif (z <= 5.4e-28)
		tmp = x + ((t - x) * (y / a));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(t * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -3.7e+25], t$95$1, If[LessEqual[z, 5.4e-28], N[(x + N[(N[(t - x), $MachinePrecision] * N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \frac{y - z}{a - z}\\
\mathbf{if}\;z \leq -3.7 \cdot 10^{+25}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;z \leq 5.4 \cdot 10^{-28}:\\
\;\;\;\;x + \left(t - x\right) \cdot \frac{y}{a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.6999999999999999e25 or 5.3999999999999998e-28 < z

    1. Initial program 71.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -3.6999999999999999e25 < z < 5.3999999999999998e-28

    1. Initial program 94.3%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 12: 63.0% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x \cdot \left(1 - \frac{y}{a - z}\right)\\ \mathbf{if}\;x \leq -9 \cdot 10^{+30}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq 2.3 \cdot 10^{+100}:\\ \;\;\;\;t \cdot \frac{y - z}{a - z}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* x (- 1.0 (/ y (- a z))))))
   (if (<= x -9e+30) t_1 (if (<= x 2.3e+100) (* t (/ (- y z) (- a z))) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x * (1.0 - (y / (a - z)));
	double tmp;
	if (x <= -9e+30) {
		tmp = t_1;
	} else if (x <= 2.3e+100) {
		tmp = t * ((y - z) / (a - z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x * (1.0d0 - (y / (a - z)))
    if (x <= (-9d+30)) then
        tmp = t_1
    else if (x <= 2.3d+100) then
        tmp = t * ((y - z) / (a - z))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x * (1.0 - (y / (a - z)));
	double tmp;
	if (x <= -9e+30) {
		tmp = t_1;
	} else if (x <= 2.3e+100) {
		tmp = t * ((y - z) / (a - z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x * (1.0 - (y / (a - z)))
	tmp = 0
	if x <= -9e+30:
		tmp = t_1
	elif x <= 2.3e+100:
		tmp = t * ((y - z) / (a - z))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x * Float64(1.0 - Float64(y / Float64(a - z))))
	tmp = 0.0
	if (x <= -9e+30)
		tmp = t_1;
	elseif (x <= 2.3e+100)
		tmp = Float64(t * Float64(Float64(y - z) / Float64(a - z)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x * (1.0 - (y / (a - z)));
	tmp = 0.0;
	if (x <= -9e+30)
		tmp = t_1;
	elseif (x <= 2.3e+100)
		tmp = t * ((y - z) / (a - z));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x * N[(1.0 - N[(y / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -9e+30], t$95$1, If[LessEqual[x, 2.3e+100], N[(t * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x \cdot \left(1 - \frac{y}{a - z}\right)\\
\mathbf{if}\;x \leq -9 \cdot 10^{+30}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq 2.3 \cdot 10^{+100}:\\
\;\;\;\;t \cdot \frac{y - z}{a - z}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -8.9999999999999999e30 or 2.2999999999999999e100 < x

    1. Initial program 76.9%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -8.9999999999999999e30 < x < 2.2999999999999999e100

    1. Initial program 85.7%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 13: 59.3% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x \cdot \left(1 - \frac{y}{a}\right)\\ \mathbf{if}\;x \leq -2.6 \cdot 10^{+37}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq 3.6 \cdot 10^{+142}:\\ \;\;\;\;t \cdot \frac{y - z}{a - z}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (* x (- 1.0 (/ y a)))))
   (if (<= x -2.6e+37)
     t_1
     (if (<= x 3.6e+142) (* t (/ (- y z) (- a z))) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = x * (1.0 - (y / a));
	double tmp;
	if (x <= -2.6e+37) {
		tmp = t_1;
	} else if (x <= 3.6e+142) {
		tmp = t * ((y - z) / (a - z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x * (1.0d0 - (y / a))
    if (x <= (-2.6d+37)) then
        tmp = t_1
    else if (x <= 3.6d+142) then
        tmp = t * ((y - z) / (a - z))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double t_1 = x * (1.0 - (y / a));
	double tmp;
	if (x <= -2.6e+37) {
		tmp = t_1;
	} else if (x <= 3.6e+142) {
		tmp = t * ((y - z) / (a - z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a):
	t_1 = x * (1.0 - (y / a))
	tmp = 0
	if x <= -2.6e+37:
		tmp = t_1
	elif x <= 3.6e+142:
		tmp = t * ((y - z) / (a - z))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a)
	t_1 = Float64(x * Float64(1.0 - Float64(y / a)))
	tmp = 0.0
	if (x <= -2.6e+37)
		tmp = t_1;
	elseif (x <= 3.6e+142)
		tmp = Float64(t * Float64(Float64(y - z) / Float64(a - z)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	t_1 = x * (1.0 - (y / a));
	tmp = 0.0;
	if (x <= -2.6e+37)
		tmp = t_1;
	elseif (x <= 3.6e+142)
		tmp = t * ((y - z) / (a - z));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x * N[(1.0 - N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -2.6e+37], t$95$1, If[LessEqual[x, 3.6e+142], N[(t * N[(N[(y - z), $MachinePrecision] / N[(a - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x \cdot \left(1 - \frac{y}{a}\right)\\
\mathbf{if}\;x \leq -2.6 \cdot 10^{+37}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq 3.6 \cdot 10^{+142}:\\
\;\;\;\;t \cdot \frac{y - z}{a - z}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -2.5999999999999999e37 or 3.6000000000000001e142 < x

    1. Initial program 78.5%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
    6. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]

    if -2.5999999999999999e37 < x < 3.6000000000000001e142

    1. Initial program 84.4%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 14: 54.1% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -6.3 \cdot 10^{+91}:\\ \;\;\;\;t\\ \mathbf{elif}\;z \leq 6 \cdot 10^{+80}:\\ \;\;\;\;x + t \cdot \frac{y}{a}\\ \mathbf{else}:\\ \;\;\;\;t\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= z -6.3e+91) t (if (<= z 6e+80) (+ x (* t (/ y a))) t)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -6.3e+91) {
		tmp = t;
	} else if (z <= 6e+80) {
		tmp = x + (t * (y / a));
	} else {
		tmp = t;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (z <= (-6.3d+91)) then
        tmp = t
    else if (z <= 6d+80) then
        tmp = x + (t * (y / a))
    else
        tmp = t
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -6.3e+91) {
		tmp = t;
	} else if (z <= 6e+80) {
		tmp = x + (t * (y / a));
	} else {
		tmp = t;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if z <= -6.3e+91:
		tmp = t
	elif z <= 6e+80:
		tmp = x + (t * (y / a))
	else:
		tmp = t
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (z <= -6.3e+91)
		tmp = t;
	elseif (z <= 6e+80)
		tmp = Float64(x + Float64(t * Float64(y / a)));
	else
		tmp = t;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (z <= -6.3e+91)
		tmp = t;
	elseif (z <= 6e+80)
		tmp = x + (t * (y / a));
	else
		tmp = t;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[z, -6.3e+91], t, If[LessEqual[z, 6e+80], N[(x + N[(t * N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -6.3 \cdot 10^{+91}:\\
\;\;\;\;t\\

\mathbf{elif}\;z \leq 6 \cdot 10^{+80}:\\
\;\;\;\;x + t \cdot \frac{y}{a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -6.3e91 or 5.99999999999999974e80 < z

    1. Initial program 59.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -6.3e91 < z < 5.99999999999999974e80

    1. Initial program 95.0%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
    6. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 15: 50.2% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -1.6 \cdot 10^{+91}:\\ \;\;\;\;t\\ \mathbf{elif}\;z \leq 1.8 \cdot 10^{+79}:\\ \;\;\;\;x \cdot \left(1 - \frac{y}{a}\right)\\ \mathbf{else}:\\ \;\;\;\;t\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= z -1.6e+91) t (if (<= z 1.8e+79) (* x (- 1.0 (/ y a))) t)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -1.6e+91) {
		tmp = t;
	} else if (z <= 1.8e+79) {
		tmp = x * (1.0 - (y / a));
	} else {
		tmp = t;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (z <= (-1.6d+91)) then
        tmp = t
    else if (z <= 1.8d+79) then
        tmp = x * (1.0d0 - (y / a))
    else
        tmp = t
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (z <= -1.6e+91) {
		tmp = t;
	} else if (z <= 1.8e+79) {
		tmp = x * (1.0 - (y / a));
	} else {
		tmp = t;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if z <= -1.6e+91:
		tmp = t
	elif z <= 1.8e+79:
		tmp = x * (1.0 - (y / a))
	else:
		tmp = t
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (z <= -1.6e+91)
		tmp = t;
	elseif (z <= 1.8e+79)
		tmp = Float64(x * Float64(1.0 - Float64(y / a)));
	else
		tmp = t;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (z <= -1.6e+91)
		tmp = t;
	elseif (z <= 1.8e+79)
		tmp = x * (1.0 - (y / a));
	else
		tmp = t;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[z, -1.6e+91], t, If[LessEqual[z, 1.8e+79], N[(x * N[(1.0 - N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.6 \cdot 10^{+91}:\\
\;\;\;\;t\\

\mathbf{elif}\;z \leq 1.8 \cdot 10^{+79}:\\
\;\;\;\;x \cdot \left(1 - \frac{y}{a}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -1.59999999999999995e91 or 1.8e79 < z

    1. Initial program 60.3%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -1.59999999999999995e91 < z < 1.8e79

    1. Initial program 94.9%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around 0 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
    6. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    7. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 16: 38.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -8.6 \cdot 10^{+43}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq -4.1 \cdot 10^{+24}:\\ \;\;\;\;y \cdot \frac{t}{a}\\ \mathbf{elif}\;a \leq 122:\\ \;\;\;\;t\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= a -8.6e+43)
   x
   (if (<= a -4.1e+24) (* y (/ t a)) (if (<= a 122.0) t x))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (a <= -8.6e+43) {
		tmp = x;
	} else if (a <= -4.1e+24) {
		tmp = y * (t / a);
	} else if (a <= 122.0) {
		tmp = t;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (a <= (-8.6d+43)) then
        tmp = x
    else if (a <= (-4.1d+24)) then
        tmp = y * (t / a)
    else if (a <= 122.0d0) then
        tmp = t
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (a <= -8.6e+43) {
		tmp = x;
	} else if (a <= -4.1e+24) {
		tmp = y * (t / a);
	} else if (a <= 122.0) {
		tmp = t;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if a <= -8.6e+43:
		tmp = x
	elif a <= -4.1e+24:
		tmp = y * (t / a)
	elif a <= 122.0:
		tmp = t
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (a <= -8.6e+43)
		tmp = x;
	elseif (a <= -4.1e+24)
		tmp = Float64(y * Float64(t / a));
	elseif (a <= 122.0)
		tmp = t;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (a <= -8.6e+43)
		tmp = x;
	elseif (a <= -4.1e+24)
		tmp = y * (t / a);
	elseif (a <= 122.0)
		tmp = t;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[a, -8.6e+43], x, If[LessEqual[a, -4.1e+24], N[(y * N[(t / a), $MachinePrecision]), $MachinePrecision], If[LessEqual[a, 122.0], t, x]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -8.6 \cdot 10^{+43}:\\
\;\;\;\;x\\

\mathbf{elif}\;a \leq -4.1 \cdot 10^{+24}:\\
\;\;\;\;y \cdot \frac{t}{a}\\

\mathbf{elif}\;a \leq 122:\\
\;\;\;\;t\\

\mathbf{else}:\\
\;\;\;\;x\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if a < -8.6e43 or 122 < a

    1. Initial program 85.2%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -8.6e43 < a < -4.1000000000000001e24

    1. Initial program 99.5%

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

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    8. Simplified0

      \[\leadsto expr\]

    if -4.1000000000000001e24 < a < 122

    1. Initial program 78.5%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 17: 38.9% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -1.45 \cdot 10^{+54}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq 380:\\ \;\;\;\;t\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= a -1.45e+54) x (if (<= a 380.0) t x)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (a <= -1.45e+54) {
		tmp = x;
	} else if (a <= 380.0) {
		tmp = t;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8) :: tmp
    if (a <= (-1.45d+54)) then
        tmp = x
    else if (a <= 380.0d0) then
        tmp = t
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (a <= -1.45e+54) {
		tmp = x;
	} else if (a <= 380.0) {
		tmp = t;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if a <= -1.45e+54:
		tmp = x
	elif a <= 380.0:
		tmp = t
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (a <= -1.45e+54)
		tmp = x;
	elseif (a <= 380.0)
		tmp = t;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (a <= -1.45e+54)
		tmp = x;
	elseif (a <= 380.0)
		tmp = t;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[a, -1.45e+54], x, If[LessEqual[a, 380.0], t, x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -1.45 \cdot 10^{+54}:\\
\;\;\;\;x\\

\mathbf{elif}\;a \leq 380:\\
\;\;\;\;t\\

\mathbf{else}:\\
\;\;\;\;x\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -1.4499999999999999e54 or 380 < a

    1. Initial program 85.5%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]

    if -1.4499999999999999e54 < a < 380

    1. Initial program 79.3%

      \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
    2. Simplified0

      \[\leadsto expr\]
    3. Add Preprocessing
    4. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    5. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 18: 25.7% accurate, 13.0× speedup?

\[\begin{array}{l} \\ t \end{array} \]
(FPCore (x y z t a) :precision binary64 t)
double code(double x, double y, double z, double t, double a) {
	return t;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    code = t
end function
public static double code(double x, double y, double z, double t, double a) {
	return t;
}
def code(x, y, z, t, a):
	return t
function code(x, y, z, t, a)
	return t
end
function tmp = code(x, y, z, t, a)
	tmp = t;
end
code[x_, y_, z_, t_, a_] := t
\begin{array}{l}

\\
t
\end{array}
Derivation
  1. Initial program 82.2%

    \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
  2. Simplified0

    \[\leadsto expr\]
  3. Add Preprocessing
  4. Taylor expanded in z around inf 0

    \[\leadsto expr\]
  5. Simplified0

    \[\leadsto expr\]
  6. Add Preprocessing

Alternative 19: 2.8% accurate, 13.0× speedup?

\[\begin{array}{l} \\ 0 \end{array} \]
(FPCore (x y z t a) :precision binary64 0.0)
double code(double x, double y, double z, double t, double a) {
	return 0.0;
}
real(8) function code(x, y, z, t, a)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    code = 0.0d0
end function
public static double code(double x, double y, double z, double t, double a) {
	return 0.0;
}
def code(x, y, z, t, a):
	return 0.0
function code(x, y, z, t, a)
	return 0.0
end
function tmp = code(x, y, z, t, a)
	tmp = 0.0;
end
code[x_, y_, z_, t_, a_] := 0.0
\begin{array}{l}

\\
0
\end{array}
Derivation
  1. Initial program 82.2%

    \[x + \left(y - z\right) \cdot \frac{t - x}{a - z} \]
  2. Simplified0

    \[\leadsto expr\]
  3. Add Preprocessing
  4. Taylor expanded in t around 0 0

    \[\leadsto expr\]
  5. Simplified0

    \[\leadsto expr\]
  6. Taylor expanded in z around inf 0

    \[\leadsto expr\]
  7. Simplified0

    \[\leadsto expr\]
  8. Add Preprocessing

Reproduce

?
herbie shell --seed 2024110 
(FPCore (x y z t a)
  :name "Numeric.Signal:interpolate   from hsignal-0.2.7.1"
  :precision binary64
  (+ x (* (- y z) (/ (- t x) (- a z)))))