
(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 98.4%
clear-num98.3%
un-div-inv98.5%
Applied egg-rr98.5%
(FPCore (x y z t) :precision binary64 (if (or (<= (/ z t) -500000.0) (not (<= (/ z t) 2e-10))) (* x (/ z (- t))) x))
double code(double x, double y, double z, double t) {
double tmp;
if (((z / t) <= -500000.0) || !((z / t) <= 2e-10)) {
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) <= (-500000.0d0)) .or. (.not. ((z / t) <= 2d-10))) 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) <= -500000.0) || !((z / t) <= 2e-10)) {
tmp = x * (z / -t);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if ((z / t) <= -500000.0) or not ((z / t) <= 2e-10): tmp = x * (z / -t) else: tmp = x return tmp
function code(x, y, z, t) tmp = 0.0 if ((Float64(z / t) <= -500000.0) || !(Float64(z / t) <= 2e-10)) 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) <= -500000.0) || ~(((z / t) <= 2e-10))) tmp = x * (z / -t); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -500000.0], N[Not[LessEqual[N[(z / t), $MachinePrecision], 2e-10]], $MachinePrecision]], N[(x * N[(z / (-t)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -500000 \lor \neg \left(\frac{z}{t} \leq 2 \cdot 10^{-10}\right):\\
\;\;\;\;x \cdot \frac{z}{-t}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if (/.f64 z t) < -5e5 or 2.00000000000000007e-10 < (/.f64 z t) Initial program 98.4%
Taylor expanded in x around inf 54.5%
mul-1-neg54.5%
unsub-neg54.5%
Simplified54.5%
Taylor expanded in z around inf 53.5%
neg-mul-153.5%
distribute-neg-frac253.5%
Simplified53.5%
if -5e5 < (/.f64 z t) < 2.00000000000000007e-10Initial program 98.4%
Taylor expanded in z around 0 79.4%
Final simplification65.5%
(FPCore (x y z t) :precision binary64 (if (or (<= (/ z t) -1e+230) (not (<= (/ z t) 1e+250))) (/ x (/ t z)) x))
double code(double x, double y, double z, double t) {
double tmp;
if (((z / t) <= -1e+230) || !((z / t) <= 1e+250)) {
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 (((z / t) <= (-1d+230)) .or. (.not. ((z / t) <= 1d+250))) 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 (((z / t) <= -1e+230) || !((z / t) <= 1e+250)) {
tmp = x / (t / z);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if ((z / t) <= -1e+230) or not ((z / t) <= 1e+250): tmp = x / (t / z) else: tmp = x return tmp
function code(x, y, z, t) tmp = 0.0 if ((Float64(z / t) <= -1e+230) || !(Float64(z / t) <= 1e+250)) tmp = Float64(x / Float64(t / z)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if (((z / t) <= -1e+230) || ~(((z / t) <= 1e+250))) tmp = x / (t / z); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -1e+230], N[Not[LessEqual[N[(z / t), $MachinePrecision], 1e+250]], $MachinePrecision]], N[(x / N[(t / z), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{+230} \lor \neg \left(\frac{z}{t} \leq 10^{+250}\right):\\
\;\;\;\;\frac{x}{\frac{t}{z}}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if (/.f64 z t) < -1.0000000000000001e230 or 9.9999999999999992e249 < (/.f64 z t) Initial program 96.5%
Taylor expanded in x around inf 63.7%
mul-1-neg63.7%
unsub-neg63.7%
Simplified63.7%
Taylor expanded in z around inf 63.7%
neg-mul-163.7%
distribute-neg-frac263.7%
Simplified63.7%
clear-num63.6%
un-div-inv62.0%
add-sqr-sqrt30.9%
sqrt-unprod42.0%
sqr-neg42.0%
sqrt-unprod12.8%
add-sqr-sqrt24.3%
Applied egg-rr24.3%
if -1.0000000000000001e230 < (/.f64 z t) < 9.9999999999999992e249Initial program 98.9%
Taylor expanded in z around 0 48.3%
Final simplification43.1%
(FPCore (x y z t) :precision binary64 (if (or (<= (/ z t) -1e+230) (not (<= (/ z t) 1e+250))) (* x (/ z t)) x))
double code(double x, double y, double z, double t) {
double tmp;
if (((z / t) <= -1e+230) || !((z / t) <= 1e+250)) {
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) <= (-1d+230)) .or. (.not. ((z / t) <= 1d+250))) 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) <= -1e+230) || !((z / t) <= 1e+250)) {
tmp = x * (z / t);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if ((z / t) <= -1e+230) or not ((z / t) <= 1e+250): tmp = x * (z / t) else: tmp = x return tmp
function code(x, y, z, t) tmp = 0.0 if ((Float64(z / t) <= -1e+230) || !(Float64(z / t) <= 1e+250)) tmp = Float64(x * Float64(z / t)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if (((z / t) <= -1e+230) || ~(((z / t) <= 1e+250))) tmp = x * (z / t); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -1e+230], N[Not[LessEqual[N[(z / t), $MachinePrecision], 1e+250]], $MachinePrecision]], N[(x * N[(z / t), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{+230} \lor \neg \left(\frac{z}{t} \leq 10^{+250}\right):\\
\;\;\;\;x \cdot \frac{z}{t}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if (/.f64 z t) < -1.0000000000000001e230 or 9.9999999999999992e249 < (/.f64 z t) Initial program 96.5%
Taylor expanded in x around inf 63.7%
mul-1-neg63.7%
unsub-neg63.7%
Simplified63.7%
Taylor expanded in z around inf 63.7%
neg-mul-163.7%
distribute-neg-frac263.7%
Simplified63.7%
clear-num63.6%
un-div-inv62.0%
add-sqr-sqrt30.9%
sqrt-unprod42.0%
sqr-neg42.0%
sqrt-unprod12.8%
add-sqr-sqrt24.3%
Applied egg-rr24.3%
associate-/r/12.3%
associate-*l/12.3%
associate-*r/24.2%
Simplified24.2%
if -1.0000000000000001e230 < (/.f64 z t) < 9.9999999999999992e249Initial program 98.9%
Taylor expanded in z around 0 48.3%
Final simplification43.1%
(FPCore (x y z t) :precision binary64 (if (or (<= y -6.8e+53) (not (<= y 1.8e+34))) (+ x (* y (/ z t))) (* x (- 1.0 (/ z t)))))
double code(double x, double y, double z, double t) {
double tmp;
if ((y <= -6.8e+53) || !(y <= 1.8e+34)) {
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 <= (-6.8d+53)) .or. (.not. (y <= 1.8d+34))) 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 <= -6.8e+53) || !(y <= 1.8e+34)) {
tmp = x + (y * (z / t));
} else {
tmp = x * (1.0 - (z / t));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if (y <= -6.8e+53) or not (y <= 1.8e+34): 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 <= -6.8e+53) || !(y <= 1.8e+34)) 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 <= -6.8e+53) || ~((y <= 1.8e+34))) 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, -6.8e+53], N[Not[LessEqual[y, 1.8e+34]], $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 -6.8 \cdot 10^{+53} \lor \neg \left(y \leq 1.8 \cdot 10^{+34}\right):\\
\;\;\;\;x + y \cdot \frac{z}{t}\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\
\end{array}
\end{array}
if y < -6.79999999999999995e53 or 1.8e34 < y Initial program 98.2%
Taylor expanded in y around inf 87.6%
associate-*r/92.4%
Simplified92.4%
if -6.79999999999999995e53 < y < 1.8e34Initial program 98.5%
Taylor expanded in x around inf 83.8%
mul-1-neg83.8%
unsub-neg83.8%
Simplified83.8%
Final simplification87.6%
(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 98.4%
(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 98.4%
Taylor expanded in x around inf 66.3%
mul-1-neg66.3%
unsub-neg66.3%
Simplified66.3%
(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 98.4%
Taylor expanded in z around 0 38.5%
(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 2024116
(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))))