
(FPCore (x y z) :precision binary64 (+ (* x y) (* (- x 1.0) z)))
double code(double x, double y, double z) {
return (x * y) + ((x - 1.0) * z);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * y) + ((x - 1.0d0) * z)
end function
public static double code(double x, double y, double z) {
return (x * y) + ((x - 1.0) * z);
}
def code(x, y, z): return (x * y) + ((x - 1.0) * z)
function code(x, y, z) return Float64(Float64(x * y) + Float64(Float64(x - 1.0) * z)) end
function tmp = code(x, y, z) tmp = (x * y) + ((x - 1.0) * z); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(x - 1.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + \left(x - 1\right) \cdot z
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* x y) (* (- x 1.0) z)))
double code(double x, double y, double z) {
return (x * y) + ((x - 1.0) * z);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * y) + ((x - 1.0d0) * z)
end function
public static double code(double x, double y, double z) {
return (x * y) + ((x - 1.0) * z);
}
def code(x, y, z): return (x * y) + ((x - 1.0) * z)
function code(x, y, z) return Float64(Float64(x * y) + Float64(Float64(x - 1.0) * z)) end
function tmp = code(x, y, z) tmp = (x * y) + ((x - 1.0) * z); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(x - 1.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + \left(x - 1\right) \cdot z
\end{array}
(FPCore (x y z) :precision binary64 (- (* x (+ z y)) z))
double code(double x, double y, double z) {
return (x * (z + y)) - z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * (z + y)) - z
end function
public static double code(double x, double y, double z) {
return (x * (z + y)) - z;
}
def code(x, y, z): return (x * (z + y)) - z
function code(x, y, z) return Float64(Float64(x * Float64(z + y)) - z) end
function tmp = code(x, y, z) tmp = (x * (z + y)) - z; end
code[x_, y_, z_] := N[(N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(z + y\right) - z
\end{array}
Initial program 97.6%
*-commutative97.6%
sub-neg97.6%
distribute-rgt-in97.6%
metadata-eval97.6%
neg-mul-197.6%
associate-+r+97.6%
unsub-neg97.6%
+-commutative97.6%
distribute-lft-out100.0%
Simplified100.0%
(FPCore (x y z) :precision binary64 (if (<= x -1.2e-24) (* x y) (if (<= x 7.6e-15) (- z) (if (<= x 1.8e+143) (* x y) (* x z)))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.2e-24) {
tmp = x * y;
} else if (x <= 7.6e-15) {
tmp = -z;
} else if (x <= 1.8e+143) {
tmp = x * y;
} else {
tmp = x * z;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (x <= (-1.2d-24)) then
tmp = x * y
else if (x <= 7.6d-15) then
tmp = -z
else if (x <= 1.8d+143) then
tmp = x * y
else
tmp = x * z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -1.2e-24) {
tmp = x * y;
} else if (x <= 7.6e-15) {
tmp = -z;
} else if (x <= 1.8e+143) {
tmp = x * y;
} else {
tmp = x * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.2e-24: tmp = x * y elif x <= 7.6e-15: tmp = -z elif x <= 1.8e+143: tmp = x * y else: tmp = x * z return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.2e-24) tmp = Float64(x * y); elseif (x <= 7.6e-15) tmp = Float64(-z); elseif (x <= 1.8e+143) tmp = Float64(x * y); else tmp = Float64(x * z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.2e-24) tmp = x * y; elseif (x <= 7.6e-15) tmp = -z; elseif (x <= 1.8e+143) tmp = x * y; else tmp = x * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.2e-24], N[(x * y), $MachinePrecision], If[LessEqual[x, 7.6e-15], (-z), If[LessEqual[x, 1.8e+143], N[(x * y), $MachinePrecision], N[(x * z), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.2 \cdot 10^{-24}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 7.6 \cdot 10^{-15}:\\
\;\;\;\;-z\\
\mathbf{elif}\;x \leq 1.8 \cdot 10^{+143}:\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;x \cdot z\\
\end{array}
\end{array}
if x < -1.1999999999999999e-24 or 7.6000000000000004e-15 < x < 1.8e143Initial program 97.9%
Taylor expanded in y around inf 57.5%
if -1.1999999999999999e-24 < x < 7.6000000000000004e-15Initial program 100.0%
Taylor expanded in x around inf 80.3%
+-commutative80.3%
mul-1-neg80.3%
unsub-neg80.3%
Simplified80.3%
Taylor expanded in x around 0 71.0%
neg-mul-171.0%
Simplified71.0%
if 1.8e143 < x Initial program 90.0%
*-commutative90.0%
sub-neg90.0%
distribute-rgt-in90.0%
metadata-eval90.0%
neg-mul-190.0%
associate-+r+90.0%
unsub-neg90.0%
+-commutative90.0%
distribute-lft-out100.0%
Simplified100.0%
Taylor expanded in z around inf 71.0%
Taylor expanded in x around inf 71.0%
*-commutative71.0%
Simplified71.0%
Final simplification65.9%
(FPCore (x y z) :precision binary64 (if (or (<= x -3500000000.0) (not (<= x 1.55e-7))) (* x (+ z y)) (- (* x y) z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -3500000000.0) || !(x <= 1.55e-7)) {
tmp = x * (z + y);
} else {
tmp = (x * y) - z;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-3500000000.0d0)) .or. (.not. (x <= 1.55d-7))) then
tmp = x * (z + y)
else
tmp = (x * y) - z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -3500000000.0) || !(x <= 1.55e-7)) {
tmp = x * (z + y);
} else {
tmp = (x * y) - z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -3500000000.0) or not (x <= 1.55e-7): tmp = x * (z + y) else: tmp = (x * y) - z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -3500000000.0) || !(x <= 1.55e-7)) tmp = Float64(x * Float64(z + y)); else tmp = Float64(Float64(x * y) - z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -3500000000.0) || ~((x <= 1.55e-7))) tmp = x * (z + y); else tmp = (x * y) - z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -3500000000.0], N[Not[LessEqual[x, 1.55e-7]], $MachinePrecision]], N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision], N[(N[(x * y), $MachinePrecision] - z), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3500000000 \lor \neg \left(x \leq 1.55 \cdot 10^{-7}\right):\\
\;\;\;\;x \cdot \left(z + y\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot y - z\\
\end{array}
\end{array}
if x < -3.5e9 or 1.55e-7 < x Initial program 95.2%
Taylor expanded in x around inf 98.6%
+-commutative98.6%
Simplified98.6%
if -3.5e9 < x < 1.55e-7Initial program 100.0%
*-commutative100.0%
sub-neg100.0%
distribute-rgt-in100.0%
metadata-eval100.0%
neg-mul-1100.0%
associate-+r+100.0%
unsub-neg100.0%
+-commutative100.0%
distribute-lft-out100.0%
Simplified100.0%
Taylor expanded in z around 0 99.3%
Final simplification99.0%
(FPCore (x y z) :precision binary64 (if (or (<= x -1.7e-23) (not (<= x 2.3e-8))) (* x (+ z y)) (* z (+ x -1.0))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.7e-23) || !(x <= 2.3e-8)) {
tmp = x * (z + y);
} else {
tmp = z * (x + -1.0);
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-1.7d-23)) .or. (.not. (x <= 2.3d-8))) then
tmp = x * (z + y)
else
tmp = z * (x + (-1.0d0))
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -1.7e-23) || !(x <= 2.3e-8)) {
tmp = x * (z + y);
} else {
tmp = z * (x + -1.0);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.7e-23) or not (x <= 2.3e-8): tmp = x * (z + y) else: tmp = z * (x + -1.0) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.7e-23) || !(x <= 2.3e-8)) tmp = Float64(x * Float64(z + y)); else tmp = Float64(z * Float64(x + -1.0)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -1.7e-23) || ~((x <= 2.3e-8))) tmp = x * (z + y); else tmp = z * (x + -1.0); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.7e-23], N[Not[LessEqual[x, 2.3e-8]], $MachinePrecision]], N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision], N[(z * N[(x + -1.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.7 \cdot 10^{-23} \lor \neg \left(x \leq 2.3 \cdot 10^{-8}\right):\\
\;\;\;\;x \cdot \left(z + y\right)\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(x + -1\right)\\
\end{array}
\end{array}
if x < -1.7e-23 or 2.3000000000000001e-8 < x Initial program 95.5%
Taylor expanded in x around inf 97.4%
+-commutative97.4%
Simplified97.4%
if -1.7e-23 < x < 2.3000000000000001e-8Initial program 100.0%
*-commutative100.0%
sub-neg100.0%
distribute-rgt-in100.0%
metadata-eval100.0%
neg-mul-1100.0%
associate-+r+100.0%
unsub-neg100.0%
+-commutative100.0%
distribute-lft-out100.0%
Simplified100.0%
Taylor expanded in z around inf 70.7%
Taylor expanded in z around 0 70.7%
Final simplification84.7%
(FPCore (x y z) :precision binary64 (if (or (<= x -9.4e-29) (not (<= x 6e-16))) (* x (+ z y)) (- z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -9.4e-29) || !(x <= 6e-16)) {
tmp = x * (z + y);
} else {
tmp = -z;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-9.4d-29)) .or. (.not. (x <= 6d-16))) then
tmp = x * (z + y)
else
tmp = -z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -9.4e-29) || !(x <= 6e-16)) {
tmp = x * (z + y);
} else {
tmp = -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -9.4e-29) or not (x <= 6e-16): tmp = x * (z + y) else: tmp = -z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -9.4e-29) || !(x <= 6e-16)) tmp = Float64(x * Float64(z + y)); else tmp = Float64(-z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -9.4e-29) || ~((x <= 6e-16))) tmp = x * (z + y); else tmp = -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -9.4e-29], N[Not[LessEqual[x, 6e-16]], $MachinePrecision]], N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision], (-z)]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -9.4 \cdot 10^{-29} \lor \neg \left(x \leq 6 \cdot 10^{-16}\right):\\
\;\;\;\;x \cdot \left(z + y\right)\\
\mathbf{else}:\\
\;\;\;\;-z\\
\end{array}
\end{array}
if x < -9.3999999999999997e-29 or 5.99999999999999987e-16 < x Initial program 95.6%
Taylor expanded in x around inf 96.7%
+-commutative96.7%
Simplified96.7%
if -9.3999999999999997e-29 < x < 5.99999999999999987e-16Initial program 100.0%
Taylor expanded in x around inf 80.3%
+-commutative80.3%
mul-1-neg80.3%
unsub-neg80.3%
Simplified80.3%
Taylor expanded in x around 0 71.0%
neg-mul-171.0%
Simplified71.0%
Final simplification84.7%
(FPCore (x y z) :precision binary64 (if (or (<= x -9e-31) (not (<= x 1.6e-14))) (* x y) (- z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -9e-31) || !(x <= 1.6e-14)) {
tmp = x * y;
} else {
tmp = -z;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-9d-31)) .or. (.not. (x <= 1.6d-14))) then
tmp = x * y
else
tmp = -z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -9e-31) || !(x <= 1.6e-14)) {
tmp = x * y;
} else {
tmp = -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -9e-31) or not (x <= 1.6e-14): tmp = x * y else: tmp = -z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -9e-31) || !(x <= 1.6e-14)) tmp = Float64(x * y); else tmp = Float64(-z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -9e-31) || ~((x <= 1.6e-14))) tmp = x * y; else tmp = -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -9e-31], N[Not[LessEqual[x, 1.6e-14]], $MachinePrecision]], N[(x * y), $MachinePrecision], (-z)]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -9 \cdot 10^{-31} \lor \neg \left(x \leq 1.6 \cdot 10^{-14}\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;-z\\
\end{array}
\end{array}
if x < -9.0000000000000008e-31 or 1.6000000000000001e-14 < x Initial program 95.6%
Taylor expanded in y around inf 52.6%
if -9.0000000000000008e-31 < x < 1.6000000000000001e-14Initial program 100.0%
Taylor expanded in x around inf 80.3%
+-commutative80.3%
mul-1-neg80.3%
unsub-neg80.3%
Simplified80.3%
Taylor expanded in x around 0 71.0%
neg-mul-171.0%
Simplified71.0%
Final simplification61.3%
(FPCore (x y z) :precision binary64 (- z))
double code(double x, double y, double z) {
return -z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = -z
end function
public static double code(double x, double y, double z) {
return -z;
}
def code(x, y, z): return -z
function code(x, y, z) return Float64(-z) end
function tmp = code(x, y, z) tmp = -z; end
code[x_, y_, z_] := (-z)
\begin{array}{l}
\\
-z
\end{array}
Initial program 97.6%
Taylor expanded in x around inf 90.7%
+-commutative90.7%
mul-1-neg90.7%
unsub-neg90.7%
Simplified90.7%
Taylor expanded in x around 0 35.5%
neg-mul-135.5%
Simplified35.5%
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
Initial program 97.6%
Taylor expanded in x around inf 90.7%
+-commutative90.7%
mul-1-neg90.7%
unsub-neg90.7%
Simplified90.7%
Taylor expanded in x around 0 35.5%
neg-mul-135.5%
Simplified35.5%
neg-sub035.5%
sub-neg35.5%
add-sqr-sqrt16.7%
sqrt-unprod16.6%
sqr-neg16.6%
sqrt-unprod1.2%
add-sqr-sqrt2.8%
Applied egg-rr2.8%
+-lft-identity2.8%
Simplified2.8%
herbie shell --seed 2024146
(FPCore (x y z)
:name "Graphics.Rendering.Chart.Drawing:drawTextsR from Chart-1.5.3"
:precision binary64
(+ (* x y) (* (- x 1.0) z)))