
(FPCore (x y z t) :precision binary64 (+ x (* (- y x) (/ z t))))
double code(double x, double y, double z, double t) {
return x + ((y - x) * (z / t));
}
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 - x) * (z / t))
end function
public static double code(double x, double y, double z, double t) {
return x + ((y - x) * (z / t));
}
def code(x, y, z, t): return x + ((y - x) * (z / t))
function code(x, y, z, t) return Float64(x + Float64(Float64(y - x) * Float64(z / t))) end
function tmp = code(x, y, z, t) tmp = x + ((y - x) * (z / t)); end
code[x_, y_, z_, t_] := N[(x + N[(N[(y - x), $MachinePrecision] * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \left(y - x\right) \cdot \frac{z}{t}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 9 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z t) :precision binary64 (+ x (* (- y x) (/ z t))))
double code(double x, double y, double z, double t) {
return x + ((y - x) * (z / t));
}
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 - x) * (z / t))
end function
public static double code(double x, double y, double z, double t) {
return x + ((y - x) * (z / t));
}
def code(x, y, z, t): return x + ((y - x) * (z / t))
function code(x, y, z, t) return Float64(x + Float64(Float64(y - x) * Float64(z / t))) end
function tmp = code(x, y, z, t) tmp = x + ((y - x) * (z / t)); end
code[x_, y_, z_, t_] := N[(x + N[(N[(y - x), $MachinePrecision] * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \left(y - x\right) \cdot \frac{z}{t}
\end{array}
(FPCore (x y z t) :precision binary64 (+ x (/ (- y x) (/ t z))))
double code(double x, double y, double z, double t) {
return x + ((y - x) / (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 - x) / (t / z))
end function
public static double code(double x, double y, double z, double t) {
return x + ((y - x) / (t / z));
}
def code(x, y, z, t): return x + ((y - x) / (t / z))
function code(x, y, z, t) return Float64(x + Float64(Float64(y - x) / Float64(t / z))) end
function tmp = code(x, y, z, t) tmp = x + ((y - x) / (t / z)); end
code[x_, y_, z_, t_] := N[(x + N[(N[(y - x), $MachinePrecision] / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \frac{y - x}{\frac{t}{z}}
\end{array}
Initial program 98.1%
clear-num98.0%
un-div-inv98.1%
Applied egg-rr98.1%
(FPCore (x y z t) :precision binary64 (if (or (<= x -5.8e+57) (not (<= x 3e+44))) (* x (- 1.0 (/ z t))) (+ x (* y (/ z t)))))
double code(double x, double y, double z, double t) {
double tmp;
if ((x <= -5.8e+57) || !(x <= 3e+44)) {
tmp = x * (1.0 - (z / t));
} else {
tmp = x + (y * (z / t));
}
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) :: tmp
if ((x <= (-5.8d+57)) .or. (.not. (x <= 3d+44))) then
tmp = x * (1.0d0 - (z / t))
else
tmp = x + (y * (z / t))
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if ((x <= -5.8e+57) || !(x <= 3e+44)) {
tmp = x * (1.0 - (z / t));
} else {
tmp = x + (y * (z / t));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if (x <= -5.8e+57) or not (x <= 3e+44): tmp = x * (1.0 - (z / t)) else: tmp = x + (y * (z / t)) return tmp
function code(x, y, z, t) tmp = 0.0 if ((x <= -5.8e+57) || !(x <= 3e+44)) tmp = Float64(x * Float64(1.0 - Float64(z / t))); else tmp = Float64(x + Float64(y * Float64(z / t))); end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if ((x <= -5.8e+57) || ~((x <= 3e+44))) tmp = x * (1.0 - (z / t)); else tmp = x + (y * (z / t)); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[Or[LessEqual[x, -5.8e+57], N[Not[LessEqual[x, 3e+44]], $MachinePrecision]], N[(x * N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.8 \cdot 10^{+57} \lor \neg \left(x \leq 3 \cdot 10^{+44}\right):\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\
\mathbf{else}:\\
\;\;\;\;x + y \cdot \frac{z}{t}\\
\end{array}
\end{array}
if x < -5.8000000000000003e57 or 2.99999999999999987e44 < x Initial program 99.8%
Taylor expanded in x around inf 88.4%
mul-1-neg88.4%
unsub-neg88.4%
Simplified88.4%
if -5.8000000000000003e57 < x < 2.99999999999999987e44Initial program 96.8%
Taylor expanded in y around inf 82.4%
associate-*r/86.3%
Simplified86.3%
Final simplification87.2%
(FPCore (x y z t) :precision binary64 (if (<= x -3e+54) (- x (/ x (/ t z))) (if (<= x 2.5e+44) (+ x (* y (/ z t))) (* x (- 1.0 (/ z t))))))
double code(double x, double y, double z, double t) {
double tmp;
if (x <= -3e+54) {
tmp = x - (x / (t / z));
} else if (x <= 2.5e+44) {
tmp = x + (y * (z / t));
} else {
tmp = x * (1.0 - (z / t));
}
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) :: tmp
if (x <= (-3d+54)) then
tmp = x - (x / (t / z))
else if (x <= 2.5d+44) then
tmp = x + (y * (z / t))
else
tmp = x * (1.0d0 - (z / t))
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if (x <= -3e+54) {
tmp = x - (x / (t / z));
} else if (x <= 2.5e+44) {
tmp = x + (y * (z / t));
} else {
tmp = x * (1.0 - (z / t));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if x <= -3e+54: tmp = x - (x / (t / z)) elif x <= 2.5e+44: tmp = x + (y * (z / t)) else: tmp = x * (1.0 - (z / t)) return tmp
function code(x, y, z, t) tmp = 0.0 if (x <= -3e+54) tmp = Float64(x - Float64(x / Float64(t / z))); elseif (x <= 2.5e+44) tmp = Float64(x + Float64(y * Float64(z / t))); else tmp = Float64(x * Float64(1.0 - Float64(z / t))); end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if (x <= -3e+54) tmp = x - (x / (t / z)); elseif (x <= 2.5e+44) tmp = x + (y * (z / t)); else tmp = x * (1.0 - (z / t)); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[LessEqual[x, -3e+54], N[(x - N[(x / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 2.5e+44], N[(x + N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x * N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3 \cdot 10^{+54}:\\
\;\;\;\;x - \frac{x}{\frac{t}{z}}\\
\mathbf{elif}\;x \leq 2.5 \cdot 10^{+44}:\\
\;\;\;\;x + y \cdot \frac{z}{t}\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\
\end{array}
\end{array}
if x < -2.9999999999999999e54Initial program 99.8%
clear-num99.8%
un-div-inv99.9%
Applied egg-rr99.9%
Taylor expanded in y around 0 90.3%
neg-mul-190.3%
Simplified90.3%
if -2.9999999999999999e54 < x < 2.4999999999999998e44Initial program 96.8%
Taylor expanded in y around inf 82.4%
associate-*r/86.3%
Simplified86.3%
if 2.4999999999999998e44 < x Initial program 99.8%
Taylor expanded in x around inf 86.8%
mul-1-neg86.8%
unsub-neg86.8%
Simplified86.8%
Final simplification87.2%
(FPCore (x y z t) :precision binary64 (if (<= t -2e+78) x (if (<= t 1.36e-118) (* x (/ z (- t))) x)))
double code(double x, double y, double z, double t) {
double tmp;
if (t <= -2e+78) {
tmp = x;
} else if (t <= 1.36e-118) {
tmp = x * (z / -t);
} else {
tmp = x;
}
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) :: tmp
if (t <= (-2d+78)) then
tmp = x
else if (t <= 1.36d-118) then
tmp = x * (z / -t)
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if (t <= -2e+78) {
tmp = x;
} else if (t <= 1.36e-118) {
tmp = x * (z / -t);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if t <= -2e+78: tmp = x elif t <= 1.36e-118: tmp = x * (z / -t) else: tmp = x return tmp
function code(x, y, z, t) tmp = 0.0 if (t <= -2e+78) tmp = x; elseif (t <= 1.36e-118) tmp = Float64(x * Float64(z / Float64(-t))); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if (t <= -2e+78) tmp = x; elseif (t <= 1.36e-118) tmp = x * (z / -t); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[LessEqual[t, -2e+78], x, If[LessEqual[t, 1.36e-118], N[(x * N[(z / (-t)), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;t \leq -2 \cdot 10^{+78}:\\
\;\;\;\;x\\
\mathbf{elif}\;t \leq 1.36 \cdot 10^{-118}:\\
\;\;\;\;x \cdot \frac{z}{-t}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if t < -2.00000000000000002e78 or 1.36000000000000009e-118 < t Initial program 99.2%
Taylor expanded in z around 0 55.1%
if -2.00000000000000002e78 < t < 1.36000000000000009e-118Initial program 96.9%
Taylor expanded in x around inf 61.9%
mul-1-neg61.9%
unsub-neg61.9%
Simplified61.9%
Taylor expanded in z around inf 46.9%
mul-1-neg46.9%
distribute-frac-neg246.9%
Simplified46.9%
(FPCore (x y z t) :precision binary64 (if (<= t -1.9e+78) x (if (<= t 5.6e-119) (* (/ x t) (- z)) x)))
double code(double x, double y, double z, double t) {
double tmp;
if (t <= -1.9e+78) {
tmp = x;
} else if (t <= 5.6e-119) {
tmp = (x / t) * -z;
} else {
tmp = x;
}
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) :: tmp
if (t <= (-1.9d+78)) then
tmp = x
else if (t <= 5.6d-119) then
tmp = (x / t) * -z
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if (t <= -1.9e+78) {
tmp = x;
} else if (t <= 5.6e-119) {
tmp = (x / t) * -z;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if t <= -1.9e+78: tmp = x elif t <= 5.6e-119: tmp = (x / t) * -z else: tmp = x return tmp
function code(x, y, z, t) tmp = 0.0 if (t <= -1.9e+78) tmp = x; elseif (t <= 5.6e-119) tmp = Float64(Float64(x / t) * Float64(-z)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if (t <= -1.9e+78) tmp = x; elseif (t <= 5.6e-119) tmp = (x / t) * -z; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[LessEqual[t, -1.9e+78], x, If[LessEqual[t, 5.6e-119], N[(N[(x / t), $MachinePrecision] * (-z)), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.9 \cdot 10^{+78}:\\
\;\;\;\;x\\
\mathbf{elif}\;t \leq 5.6 \cdot 10^{-119}:\\
\;\;\;\;\frac{x}{t} \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if t < -1.9e78 or 5.6e-119 < t Initial program 99.2%
Taylor expanded in z around 0 55.1%
if -1.9e78 < t < 5.6e-119Initial program 96.9%
Taylor expanded in x around inf 61.9%
mul-1-neg61.9%
unsub-neg61.9%
Simplified61.9%
Taylor expanded in z around inf 46.9%
mul-1-neg46.9%
distribute-frac-neg246.9%
Simplified46.9%
distribute-frac-neg246.9%
distribute-rgt-neg-out46.9%
clear-num46.9%
un-div-inv46.8%
div-inv46.3%
*-un-lft-identity46.3%
*-commutative46.3%
times-frac43.1%
clear-num43.1%
/-rgt-identity43.1%
Applied egg-rr43.1%
Final simplification49.0%
(FPCore (x y z t) :precision binary64 (+ x (* (- y x) (/ z t))))
double code(double x, double y, double z, double t) {
return x + ((y - x) * (z / t));
}
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 - x) * (z / t))
end function
public static double code(double x, double y, double z, double t) {
return x + ((y - x) * (z / t));
}
def code(x, y, z, t): return x + ((y - x) * (z / t))
function code(x, y, z, t) return Float64(x + Float64(Float64(y - x) * Float64(z / t))) end
function tmp = code(x, y, z, t) tmp = x + ((y - x) * (z / t)); end
code[x_, y_, z_, t_] := N[(x + N[(N[(y - x), $MachinePrecision] * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \left(y - x\right) \cdot \frac{z}{t}
\end{array}
Initial program 98.1%
(FPCore (x y z t) :precision binary64 (+ x (* z (/ (- y x) t))))
double code(double x, double y, double z, double t) {
return x + (z * ((y - x) / t));
}
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 + (z * ((y - x) / t))
end function
public static double code(double x, double y, double z, double t) {
return x + (z * ((y - x) / t));
}
def code(x, y, z, t): return x + (z * ((y - x) / t))
function code(x, y, z, t) return Float64(x + Float64(z * Float64(Float64(y - x) / t))) end
function tmp = code(x, y, z, t) tmp = x + (z * ((y - x) / t)); end
code[x_, y_, z_, t_] := N[(x + N[(z * N[(N[(y - x), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + z \cdot \frac{y - x}{t}
\end{array}
Initial program 98.1%
Taylor expanded in y around 0 88.6%
mul-1-neg88.6%
associate-/l*89.2%
distribute-lft-neg-out89.2%
associate-*r/91.4%
distribute-rgt-in98.1%
+-commutative98.1%
sub-neg98.1%
associate-*l/92.6%
associate-/l*95.1%
Simplified95.1%
(FPCore (x y z t) :precision binary64 (* x (- 1.0 (/ z t))))
double code(double x, double y, double z, double t) {
return x * (1.0 - (z / t));
}
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 * (1.0d0 - (z / t))
end function
public static double code(double x, double y, double z, double t) {
return x * (1.0 - (z / t));
}
def code(x, y, z, t): return x * (1.0 - (z / t))
function code(x, y, z, t) return Float64(x * Float64(1.0 - Float64(z / t))) end
function tmp = code(x, y, z, t) tmp = x * (1.0 - (z / t)); end
code[x_, y_, z_, t_] := N[(x * N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(1 - \frac{z}{t}\right)
\end{array}
Initial program 98.1%
Taylor expanded in x around inf 62.2%
mul-1-neg62.2%
unsub-neg62.2%
Simplified62.2%
(FPCore (x y z t) :precision binary64 x)
double code(double x, double y, double z, double t) {
return x;
}
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
end function
public static double code(double x, double y, double z, double t) {
return x;
}
def code(x, y, z, t): return x
function code(x, y, z, t) return x end
function tmp = code(x, y, z, t) tmp = x; end
code[x_, y_, z_, t_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 98.1%
Taylor expanded in z around 0 35.8%
(FPCore (x y z t)
:precision binary64
(let* ((t_1 (* (- y x) (/ z t))) (t_2 (+ x (/ (- y x) (/ t z)))))
(if (< t_1 -1013646692435.8867)
t_2
(if (< t_1 0.0) (+ x (/ (* (- y x) z) t)) t_2))))
double code(double x, double y, double z, double t) {
double t_1 = (y - x) * (z / t);
double t_2 = x + ((y - x) / (t / z));
double tmp;
if (t_1 < -1013646692435.8867) {
tmp = t_2;
} else if (t_1 < 0.0) {
tmp = x + (((y - x) * z) / t);
} else {
tmp = t_2;
}
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) :: t_2
real(8) :: tmp
t_1 = (y - x) * (z / t)
t_2 = x + ((y - x) / (t / z))
if (t_1 < (-1013646692435.8867d0)) then
tmp = t_2
else if (t_1 < 0.0d0) then
tmp = x + (((y - x) * z) / t)
else
tmp = t_2
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double t_1 = (y - x) * (z / t);
double t_2 = x + ((y - x) / (t / z));
double tmp;
if (t_1 < -1013646692435.8867) {
tmp = t_2;
} else if (t_1 < 0.0) {
tmp = x + (((y - x) * z) / t);
} else {
tmp = t_2;
}
return tmp;
}
def code(x, y, z, t): t_1 = (y - x) * (z / t) t_2 = x + ((y - x) / (t / z)) tmp = 0 if t_1 < -1013646692435.8867: tmp = t_2 elif t_1 < 0.0: tmp = x + (((y - x) * z) / t) else: tmp = t_2 return tmp
function code(x, y, z, t) t_1 = Float64(Float64(y - x) * Float64(z / t)) t_2 = Float64(x + Float64(Float64(y - x) / Float64(t / z))) tmp = 0.0 if (t_1 < -1013646692435.8867) tmp = t_2; elseif (t_1 < 0.0) tmp = Float64(x + Float64(Float64(Float64(y - x) * z) / t)); else tmp = t_2; end return tmp end
function tmp_2 = code(x, y, z, t) t_1 = (y - x) * (z / t); t_2 = x + ((y - x) / (t / z)); tmp = 0.0; if (t_1 < -1013646692435.8867) tmp = t_2; elseif (t_1 < 0.0) tmp = x + (((y - x) * z) / t); else tmp = t_2; end tmp_2 = tmp; end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(N[(y - x), $MachinePrecision] * N[(z / t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(N[(y - x), $MachinePrecision] / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t$95$1, -1013646692435.8867], t$95$2, If[Less[t$95$1, 0.0], N[(x + N[(N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], t$95$2]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \left(y - x\right) \cdot \frac{z}{t}\\
t_2 := x + \frac{y - x}{\frac{t}{z}}\\
\mathbf{if}\;t\_1 < -1013646692435.8867:\\
\;\;\;\;t\_2\\
\mathbf{elif}\;t\_1 < 0:\\
\;\;\;\;x + \frac{\left(y - x\right) \cdot z}{t}\\
\mathbf{else}:\\
\;\;\;\;t\_2\\
\end{array}
\end{array}
herbie shell --seed 2024137
(FPCore (x y z t)
:name "Graphics.Rendering.Plot.Render.Plot.Axis:tickPosition from plot-0.2.3.4"
:precision binary64
:alt
(! :herbie-platform default (if (< (* (- y x) (/ z t)) -10136466924358867/10000) (+ x (/ (- y x) (/ t z))) (if (< (* (- y x) (/ z t)) 0) (+ x (/ (* (- y x) z) t)) (+ x (/ (- y x) (/ t z))))))
(+ x (* (- y x) (/ z t))))