
(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 8 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 98.2%
clear-num98.2%
un-div-inv98.2%
Applied egg-rr98.2%
(FPCore (x y z t) :precision binary64 (if (or (<= (/ z t) -1000000000.0) (not (<= (/ z t) 1.0))) (* x (/ z (- t))) x))
double code(double x, double y, double z, double t) {
double tmp;
if (((z / t) <= -1000000000.0) || !((z / t) <= 1.0)) {
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 (((z / t) <= (-1000000000.0d0)) .or. (.not. ((z / t) <= 1.0d0))) 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 (((z / t) <= -1000000000.0) || !((z / t) <= 1.0)) {
tmp = x * (z / -t);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if ((z / t) <= -1000000000.0) or not ((z / t) <= 1.0): tmp = x * (z / -t) else: tmp = x return tmp
function code(x, y, z, t) tmp = 0.0 if ((Float64(z / t) <= -1000000000.0) || !(Float64(z / t) <= 1.0)) 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 (((z / t) <= -1000000000.0) || ~(((z / t) <= 1.0))) tmp = x * (z / -t); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -1000000000.0], N[Not[LessEqual[N[(z / t), $MachinePrecision], 1.0]], $MachinePrecision]], N[(x * N[(z / (-t)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -1000000000 \lor \neg \left(\frac{z}{t} \leq 1\right):\\
\;\;\;\;x \cdot \frac{z}{-t}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if (/.f64 z t) < -1e9 or 1 < (/.f64 z t) Initial program 96.8%
Taylor expanded in x around inf 54.6%
mul-1-neg54.6%
unsub-neg54.6%
Simplified54.6%
Taylor expanded in z around inf 53.4%
mul-1-neg53.4%
distribute-frac-neg253.4%
Simplified53.4%
if -1e9 < (/.f64 z t) < 1Initial program 99.5%
Taylor expanded in z around 0 73.8%
Final simplification64.0%
(FPCore (x y z t) :precision binary64 (if (or (<= y -1.14e+57) (not (<= y 7.6e-67))) (+ x (* y (/ z t))) (* x (- 1.0 (/ z t)))))
double code(double x, double y, double z, double t) {
double tmp;
if ((y <= -1.14e+57) || !(y <= 7.6e-67)) {
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 ((y <= (-1.14d+57)) .or. (.not. (y <= 7.6d-67))) 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 ((y <= -1.14e+57) || !(y <= 7.6e-67)) {
tmp = x + (y * (z / t));
} else {
tmp = x * (1.0 - (z / t));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if (y <= -1.14e+57) or not (y <= 7.6e-67): tmp = x + (y * (z / t)) else: tmp = x * (1.0 - (z / t)) return tmp
function code(x, y, z, t) tmp = 0.0 if ((y <= -1.14e+57) || !(y <= 7.6e-67)) 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 ((y <= -1.14e+57) || ~((y <= 7.6e-67))) tmp = x + (y * (z / t)); else tmp = x * (1.0 - (z / t)); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[Or[LessEqual[y, -1.14e+57], N[Not[LessEqual[y, 7.6e-67]], $MachinePrecision]], 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}\;y \leq -1.14 \cdot 10^{+57} \lor \neg \left(y \leq 7.6 \cdot 10^{-67}\right):\\
\;\;\;\;x + y \cdot \frac{z}{t}\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\
\end{array}
\end{array}
if y < -1.14e57 or 7.59999999999999976e-67 < y Initial program 99.5%
Taylor expanded in y around inf 86.5%
associate-*r/94.0%
Simplified94.0%
if -1.14e57 < y < 7.59999999999999976e-67Initial program 96.6%
Taylor expanded in x around inf 90.2%
mul-1-neg90.2%
unsub-neg90.2%
Simplified90.2%
Final simplification92.3%
(FPCore (x y z t) :precision binary64 (if (<= y -7.6e+56) (+ x (* y (/ z t))) (if (<= y 5.6e-68) (- x (/ x (/ t z))) (+ x (/ y (/ t z))))))
double code(double x, double y, double z, double t) {
double tmp;
if (y <= -7.6e+56) {
tmp = x + (y * (z / t));
} else if (y <= 5.6e-68) {
tmp = x - (x / (t / z));
} else {
tmp = x + (y / (t / z));
}
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 (y <= (-7.6d+56)) then
tmp = x + (y * (z / t))
else if (y <= 5.6d-68) then
tmp = x - (x / (t / z))
else
tmp = x + (y / (t / z))
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if (y <= -7.6e+56) {
tmp = x + (y * (z / t));
} else if (y <= 5.6e-68) {
tmp = x - (x / (t / z));
} else {
tmp = x + (y / (t / z));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if y <= -7.6e+56: tmp = x + (y * (z / t)) elif y <= 5.6e-68: tmp = x - (x / (t / z)) else: tmp = x + (y / (t / z)) return tmp
function code(x, y, z, t) tmp = 0.0 if (y <= -7.6e+56) tmp = Float64(x + Float64(y * Float64(z / t))); elseif (y <= 5.6e-68) tmp = Float64(x - Float64(x / Float64(t / z))); else tmp = Float64(x + Float64(y / Float64(t / z))); end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if (y <= -7.6e+56) tmp = x + (y * (z / t)); elseif (y <= 5.6e-68) tmp = x - (x / (t / z)); else tmp = x + (y / (t / z)); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[LessEqual[y, -7.6e+56], N[(x + N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 5.6e-68], N[(x - N[(x / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(y / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.6 \cdot 10^{+56}:\\
\;\;\;\;x + y \cdot \frac{z}{t}\\
\mathbf{elif}\;y \leq 5.6 \cdot 10^{-68}:\\
\;\;\;\;x - \frac{x}{\frac{t}{z}}\\
\mathbf{else}:\\
\;\;\;\;x + \frac{y}{\frac{t}{z}}\\
\end{array}
\end{array}
if y < -7.59999999999999991e56Initial program 98.7%
Taylor expanded in y around inf 78.8%
associate-*r/94.9%
Simplified94.9%
if -7.59999999999999991e56 < y < 5.6000000000000002e-68Initial program 96.6%
clear-num96.6%
un-div-inv96.7%
Applied egg-rr96.7%
Taylor expanded in y around 0 90.3%
neg-mul-190.3%
Simplified90.3%
if 5.6000000000000002e-68 < y Initial program 99.8%
Taylor expanded in y around inf 90.5%
associate-*r/93.5%
Simplified93.5%
clear-num93.5%
div-inv93.5%
Applied egg-rr93.5%
Final simplification92.3%
(FPCore (x y z t) :precision binary64 (if (<= y -5.5e+66) (+ x (* y (/ z t))) (if (<= y 1.95e-67) (* x (- 1.0 (/ z t))) (+ x (/ y (/ t z))))))
double code(double x, double y, double z, double t) {
double tmp;
if (y <= -5.5e+66) {
tmp = x + (y * (z / t));
} else if (y <= 1.95e-67) {
tmp = x * (1.0 - (z / t));
} else {
tmp = x + (y / (t / z));
}
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 (y <= (-5.5d+66)) then
tmp = x + (y * (z / t))
else if (y <= 1.95d-67) then
tmp = x * (1.0d0 - (z / t))
else
tmp = x + (y / (t / z))
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if (y <= -5.5e+66) {
tmp = x + (y * (z / t));
} else if (y <= 1.95e-67) {
tmp = x * (1.0 - (z / t));
} else {
tmp = x + (y / (t / z));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if y <= -5.5e+66: tmp = x + (y * (z / t)) elif y <= 1.95e-67: tmp = x * (1.0 - (z / t)) else: tmp = x + (y / (t / z)) return tmp
function code(x, y, z, t) tmp = 0.0 if (y <= -5.5e+66) tmp = Float64(x + Float64(y * Float64(z / t))); elseif (y <= 1.95e-67) tmp = Float64(x * Float64(1.0 - Float64(z / t))); else tmp = Float64(x + Float64(y / Float64(t / z))); end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if (y <= -5.5e+66) tmp = x + (y * (z / t)); elseif (y <= 1.95e-67) tmp = x * (1.0 - (z / t)); else tmp = x + (y / (t / z)); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[LessEqual[y, -5.5e+66], N[(x + N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.95e-67], N[(x * N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(y / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.5 \cdot 10^{+66}:\\
\;\;\;\;x + y \cdot \frac{z}{t}\\
\mathbf{elif}\;y \leq 1.95 \cdot 10^{-67}:\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\
\mathbf{else}:\\
\;\;\;\;x + \frac{y}{\frac{t}{z}}\\
\end{array}
\end{array}
if y < -5.5e66Initial program 98.7%
Taylor expanded in y around inf 78.8%
associate-*r/94.9%
Simplified94.9%
if -5.5e66 < y < 1.9499999999999999e-67Initial program 96.6%
Taylor expanded in x around inf 90.2%
mul-1-neg90.2%
unsub-neg90.2%
Simplified90.2%
if 1.9499999999999999e-67 < y Initial program 99.8%
Taylor expanded in y around inf 90.5%
associate-*r/93.5%
Simplified93.5%
clear-num93.5%
div-inv93.5%
Applied egg-rr93.5%
(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 98.2%
(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 98.2%
Taylor expanded in x around inf 65.4%
mul-1-neg65.4%
unsub-neg65.4%
Simplified65.4%
(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 98.2%
Taylor expanded in z around 0 39.9%
(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 2024180
(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))))