
(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 97.7%
clear-num97.6%
un-div-inv98.1%
Applied egg-rr98.1%
(FPCore (x y z t) :precision binary64 (if (or (<= (/ z t) -40000000000.0) (not (<= (/ z t) 0.05))) (* x (/ z (- t))) x))
double code(double x, double y, double z, double t) {
double tmp;
if (((z / t) <= -40000000000.0) || !((z / t) <= 0.05)) {
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) <= (-40000000000.0d0)) .or. (.not. ((z / t) <= 0.05d0))) 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) <= -40000000000.0) || !((z / t) <= 0.05)) {
tmp = x * (z / -t);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if ((z / t) <= -40000000000.0) or not ((z / t) <= 0.05): tmp = x * (z / -t) else: tmp = x return tmp
function code(x, y, z, t) tmp = 0.0 if ((Float64(z / t) <= -40000000000.0) || !(Float64(z / t) <= 0.05)) 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) <= -40000000000.0) || ~(((z / t) <= 0.05))) tmp = x * (z / -t); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -40000000000.0], N[Not[LessEqual[N[(z / t), $MachinePrecision], 0.05]], $MachinePrecision]], N[(x * N[(z / (-t)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -40000000000 \lor \neg \left(\frac{z}{t} \leq 0.05\right):\\
\;\;\;\;x \cdot \frac{z}{-t}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if (/.f64 z t) < -4e10 or 0.050000000000000003 < (/.f64 z t) Initial program 96.5%
Taylor expanded in x around inf 59.6%
mul-1-neg59.6%
unsub-neg59.6%
Simplified59.6%
Taylor expanded in z around inf 58.3%
associate-*r/58.3%
neg-mul-158.3%
Simplified58.3%
if -4e10 < (/.f64 z t) < 0.050000000000000003Initial program 98.6%
Taylor expanded in z around 0 71.5%
Final simplification65.8%
(FPCore (x y z t) :precision binary64 (if (<= (/ z t) -40000000000.0) (/ (- x) (/ t z)) (if (<= (/ z t) 0.05) x (* x (/ z (- t))))))
double code(double x, double y, double z, double t) {
double tmp;
if ((z / t) <= -40000000000.0) {
tmp = -x / (t / z);
} else if ((z / t) <= 0.05) {
tmp = x;
} else {
tmp = x * (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 ((z / t) <= (-40000000000.0d0)) then
tmp = -x / (t / z)
else if ((z / t) <= 0.05d0) then
tmp = x
else
tmp = x * (z / -t)
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if ((z / t) <= -40000000000.0) {
tmp = -x / (t / z);
} else if ((z / t) <= 0.05) {
tmp = x;
} else {
tmp = x * (z / -t);
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if (z / t) <= -40000000000.0: tmp = -x / (t / z) elif (z / t) <= 0.05: tmp = x else: tmp = x * (z / -t) return tmp
function code(x, y, z, t) tmp = 0.0 if (Float64(z / t) <= -40000000000.0) tmp = Float64(Float64(-x) / Float64(t / z)); elseif (Float64(z / t) <= 0.05) tmp = x; else tmp = Float64(x * Float64(z / Float64(-t))); end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if ((z / t) <= -40000000000.0) tmp = -x / (t / z); elseif ((z / t) <= 0.05) tmp = x; else tmp = x * (z / -t); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[LessEqual[N[(z / t), $MachinePrecision], -40000000000.0], N[((-x) / N[(t / z), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(z / t), $MachinePrecision], 0.05], x, N[(x * N[(z / (-t)), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -40000000000:\\
\;\;\;\;\frac{-x}{\frac{t}{z}}\\
\mathbf{elif}\;\frac{z}{t} \leq 0.05:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;x \cdot \frac{z}{-t}\\
\end{array}
\end{array}
if (/.f64 z t) < -4e10Initial program 98.1%
Taylor expanded in x around inf 57.7%
mul-1-neg57.7%
unsub-neg57.7%
Simplified57.7%
Taylor expanded in z around inf 57.7%
associate-*r/57.7%
neg-mul-157.7%
Simplified57.7%
distribute-frac-neg57.7%
distribute-rgt-neg-in57.7%
distribute-lft-neg-in57.7%
clear-num57.7%
un-div-inv58.4%
Applied egg-rr58.4%
if -4e10 < (/.f64 z t) < 0.050000000000000003Initial program 98.6%
Taylor expanded in z around 0 71.5%
if 0.050000000000000003 < (/.f64 z t) Initial program 95.2%
Taylor expanded in x around inf 61.2%
mul-1-neg61.2%
unsub-neg61.2%
Simplified61.2%
Taylor expanded in z around inf 58.9%
associate-*r/58.9%
neg-mul-158.9%
Simplified58.9%
Final simplification66.0%
(FPCore (x y z t) :precision binary64 (if (or (<= y -36.0) (not (<= y 9.2e-11))) (+ x (* y (/ z t))) (- x (* x (/ z t)))))
double code(double x, double y, double z, double t) {
double tmp;
if ((y <= -36.0) || !(y <= 9.2e-11)) {
tmp = x + (y * (z / t));
} else {
tmp = x - (x * (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 <= (-36.0d0)) .or. (.not. (y <= 9.2d-11))) then
tmp = x + (y * (z / t))
else
tmp = x - (x * (z / t))
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if ((y <= -36.0) || !(y <= 9.2e-11)) {
tmp = x + (y * (z / t));
} else {
tmp = x - (x * (z / t));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if (y <= -36.0) or not (y <= 9.2e-11): tmp = x + (y * (z / t)) else: tmp = x - (x * (z / t)) return tmp
function code(x, y, z, t) tmp = 0.0 if ((y <= -36.0) || !(y <= 9.2e-11)) tmp = Float64(x + Float64(y * Float64(z / t))); else tmp = Float64(x - Float64(x * Float64(z / t))); end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if ((y <= -36.0) || ~((y <= 9.2e-11))) tmp = x + (y * (z / t)); else tmp = x - (x * (z / t)); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[Or[LessEqual[y, -36.0], N[Not[LessEqual[y, 9.2e-11]], $MachinePrecision]], N[(x + N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(x * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -36 \lor \neg \left(y \leq 9.2 \cdot 10^{-11}\right):\\
\;\;\;\;x + y \cdot \frac{z}{t}\\
\mathbf{else}:\\
\;\;\;\;x - x \cdot \frac{z}{t}\\
\end{array}
\end{array}
if y < -36 or 9.20000000000000054e-11 < y Initial program 98.4%
Taylor expanded in y around inf 86.3%
associate-*r/93.0%
Simplified93.0%
if -36 < y < 9.20000000000000054e-11Initial program 97.1%
associate-*r/94.8%
Applied egg-rr94.8%
Taylor expanded in y around 0 84.1%
neg-mul-184.1%
Simplified84.1%
div-inv84.1%
add-sqr-sqrt41.0%
sqrt-unprod47.2%
sqr-neg47.2%
sqrt-unprod24.5%
add-sqr-sqrt50.5%
remove-double-neg50.5%
distribute-lft-neg-out50.5%
cancel-sign-sub-inv50.5%
associate-*r*53.3%
div-inv53.3%
add-sqr-sqrt26.0%
sqrt-unprod46.6%
sqr-neg46.6%
sqrt-unprod45.9%
add-sqr-sqrt87.7%
Applied egg-rr87.7%
Final simplification90.3%
(FPCore (x y z t) :precision binary64 (if (or (<= y -100.0) (not (<= y 1.35e-8))) (+ x (* y (/ z t))) (* x (- 1.0 (/ z t)))))
double code(double x, double y, double z, double t) {
double tmp;
if ((y <= -100.0) || !(y <= 1.35e-8)) {
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 <= (-100.0d0)) .or. (.not. (y <= 1.35d-8))) 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 <= -100.0) || !(y <= 1.35e-8)) {
tmp = x + (y * (z / t));
} else {
tmp = x * (1.0 - (z / t));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if (y <= -100.0) or not (y <= 1.35e-8): 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 <= -100.0) || !(y <= 1.35e-8)) 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 <= -100.0) || ~((y <= 1.35e-8))) 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, -100.0], N[Not[LessEqual[y, 1.35e-8]], $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 -100 \lor \neg \left(y \leq 1.35 \cdot 10^{-8}\right):\\
\;\;\;\;x + y \cdot \frac{z}{t}\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\
\end{array}
\end{array}
if y < -100 or 1.35000000000000001e-8 < y Initial program 98.4%
Taylor expanded in y around inf 86.3%
associate-*r/93.0%
Simplified93.0%
if -100 < y < 1.35000000000000001e-8Initial program 97.1%
Taylor expanded in x around inf 87.7%
mul-1-neg87.7%
unsub-neg87.7%
Simplified87.7%
Final simplification90.3%
(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 97.7%
(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 97.7%
Taylor expanded in x around inf 66.9%
mul-1-neg66.9%
unsub-neg66.9%
Simplified66.9%
(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 97.7%
Taylor expanded in z around 0 41.8%
(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 2024110
(FPCore (x y z t)
:name "Graphics.Rendering.Plot.Render.Plot.Axis:tickPosition from plot-0.2.3.4"
:precision binary64
:alt
(if (< (* (- y x) (/ z t)) -1013646692435.8867) (+ x (/ (- y x) (/ t z))) (if (< (* (- y x) (/ z t)) 0.0) (+ x (/ (* (- y x) z) t)) (+ x (/ (- y x) (/ t z)))))
(+ x (* (- y x) (/ z t))))