
(FPCore (m v) :precision binary64 (* (- (/ (* m (- 1.0 m)) v) 1.0) (- 1.0 m)))
double code(double m, double v) {
return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m);
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
code = (((m * (1.0d0 - m)) / v) - 1.0d0) * (1.0d0 - m)
end function
public static double code(double m, double v) {
return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m);
}
def code(m, v): return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m)
function code(m, v) return Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * Float64(1.0 - m)) end
function tmp = code(m, v) tmp = (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m); end
code[m_, v_] := N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * N[(1.0 - m), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 11 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (m v) :precision binary64 (* (- (/ (* m (- 1.0 m)) v) 1.0) (- 1.0 m)))
double code(double m, double v) {
return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m);
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
code = (((m * (1.0d0 - m)) / v) - 1.0d0) * (1.0d0 - m)
end function
public static double code(double m, double v) {
return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m);
}
def code(m, v): return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m)
function code(m, v) return Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * Float64(1.0 - m)) end
function tmp = code(m, v) tmp = (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m); end
code[m_, v_] := N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * N[(1.0 - m), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right)
\end{array}
(FPCore (m v) :precision binary64 (if (<= m 2e-18) (+ (+ m (/ m v)) -1.0) (/ (* m (+ 1.0 (* m (+ m -2.0)))) v)))
double code(double m, double v) {
double tmp;
if (m <= 2e-18) {
tmp = (m + (m / v)) + -1.0;
} else {
tmp = (m * (1.0 + (m * (m + -2.0)))) / v;
}
return tmp;
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
real(8) :: tmp
if (m <= 2d-18) then
tmp = (m + (m / v)) + (-1.0d0)
else
tmp = (m * (1.0d0 + (m * (m + (-2.0d0))))) / v
end if
code = tmp
end function
public static double code(double m, double v) {
double tmp;
if (m <= 2e-18) {
tmp = (m + (m / v)) + -1.0;
} else {
tmp = (m * (1.0 + (m * (m + -2.0)))) / v;
}
return tmp;
}
def code(m, v): tmp = 0 if m <= 2e-18: tmp = (m + (m / v)) + -1.0 else: tmp = (m * (1.0 + (m * (m + -2.0)))) / v return tmp
function code(m, v) tmp = 0.0 if (m <= 2e-18) tmp = Float64(Float64(m + Float64(m / v)) + -1.0); else tmp = Float64(Float64(m * Float64(1.0 + Float64(m * Float64(m + -2.0)))) / v); end return tmp end
function tmp_2 = code(m, v) tmp = 0.0; if (m <= 2e-18) tmp = (m + (m / v)) + -1.0; else tmp = (m * (1.0 + (m * (m + -2.0)))) / v; end tmp_2 = tmp; end
code[m_, v_] := If[LessEqual[m, 2e-18], N[(N[(m + N[(m / v), $MachinePrecision]), $MachinePrecision] + -1.0), $MachinePrecision], N[(N[(m * N[(1.0 + N[(m * N[(m + -2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;m \leq 2 \cdot 10^{-18}:\\
\;\;\;\;\left(m + \frac{m}{v}\right) + -1\\
\mathbf{else}:\\
\;\;\;\;\frac{m \cdot \left(1 + m \cdot \left(m + -2\right)\right)}{v}\\
\end{array}
\end{array}
if m < 2.0000000000000001e-18Initial program 100.0%
*-commutative100.0%
sub-neg100.0%
associate-/l*99.7%
metadata-eval99.7%
Simplified99.7%
Taylor expanded in m around 0 99.7%
+-commutative99.7%
distribute-lft-in99.7%
div-inv100.0%
*-rgt-identity100.0%
Applied egg-rr100.0%
if 2.0000000000000001e-18 < m Initial program 99.8%
*-commutative99.8%
sub-neg99.8%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in v around 0 99.9%
Taylor expanded in m around 0 99.9%
+-commutative99.9%
unpow299.9%
distribute-rgt-out99.9%
Simplified99.9%
Final simplification99.9%
(FPCore (m v) :precision binary64 (if (<= m 1.6) (* (- 1.0 m) (+ (/ m v) -1.0)) (/ (* m (* m (+ m -2.0))) v)))
double code(double m, double v) {
double tmp;
if (m <= 1.6) {
tmp = (1.0 - m) * ((m / v) + -1.0);
} else {
tmp = (m * (m * (m + -2.0))) / v;
}
return tmp;
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
real(8) :: tmp
if (m <= 1.6d0) then
tmp = (1.0d0 - m) * ((m / v) + (-1.0d0))
else
tmp = (m * (m * (m + (-2.0d0)))) / v
end if
code = tmp
end function
public static double code(double m, double v) {
double tmp;
if (m <= 1.6) {
tmp = (1.0 - m) * ((m / v) + -1.0);
} else {
tmp = (m * (m * (m + -2.0))) / v;
}
return tmp;
}
def code(m, v): tmp = 0 if m <= 1.6: tmp = (1.0 - m) * ((m / v) + -1.0) else: tmp = (m * (m * (m + -2.0))) / v return tmp
function code(m, v) tmp = 0.0 if (m <= 1.6) tmp = Float64(Float64(1.0 - m) * Float64(Float64(m / v) + -1.0)); else tmp = Float64(Float64(m * Float64(m * Float64(m + -2.0))) / v); end return tmp end
function tmp_2 = code(m, v) tmp = 0.0; if (m <= 1.6) tmp = (1.0 - m) * ((m / v) + -1.0); else tmp = (m * (m * (m + -2.0))) / v; end tmp_2 = tmp; end
code[m_, v_] := If[LessEqual[m, 1.6], N[(N[(1.0 - m), $MachinePrecision] * N[(N[(m / v), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision], N[(N[(m * N[(m * N[(m + -2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;m \leq 1.6:\\
\;\;\;\;\left(1 - m\right) \cdot \left(\frac{m}{v} + -1\right)\\
\mathbf{else}:\\
\;\;\;\;\frac{m \cdot \left(m \cdot \left(m + -2\right)\right)}{v}\\
\end{array}
\end{array}
if m < 1.6000000000000001Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.7%
metadata-eval99.7%
Simplified99.7%
Taylor expanded in m around 0 97.6%
if 1.6000000000000001 < m Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in v around 0 99.9%
Taylor expanded in m around inf 98.8%
+-commutative98.8%
unpow298.8%
distribute-rgt-out98.8%
Simplified98.8%
Final simplification98.3%
(FPCore (m v) :precision binary64 (* (- 1.0 m) (+ (/ (* m (- 1.0 m)) v) -1.0)))
double code(double m, double v) {
return (1.0 - m) * (((m * (1.0 - m)) / v) + -1.0);
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
code = (1.0d0 - m) * (((m * (1.0d0 - m)) / v) + (-1.0d0))
end function
public static double code(double m, double v) {
return (1.0 - m) * (((m * (1.0 - m)) / v) + -1.0);
}
def code(m, v): return (1.0 - m) * (((m * (1.0 - m)) / v) + -1.0)
function code(m, v) return Float64(Float64(1.0 - m) * Float64(Float64(Float64(m * Float64(1.0 - m)) / v) + -1.0)) end
function tmp = code(m, v) tmp = (1.0 - m) * (((m * (1.0 - m)) / v) + -1.0); end
code[m_, v_] := N[(N[(1.0 - m), $MachinePrecision] * N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} + -1\right)
\end{array}
Initial program 99.9%
Final simplification99.9%
(FPCore (m v) :precision binary64 (* (- 1.0 m) (+ (* m (/ (- 1.0 m) v)) -1.0)))
double code(double m, double v) {
return (1.0 - m) * ((m * ((1.0 - m) / v)) + -1.0);
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
code = (1.0d0 - m) * ((m * ((1.0d0 - m) / v)) + (-1.0d0))
end function
public static double code(double m, double v) {
return (1.0 - m) * ((m * ((1.0 - m) / v)) + -1.0);
}
def code(m, v): return (1.0 - m) * ((m * ((1.0 - m) / v)) + -1.0)
function code(m, v) return Float64(Float64(1.0 - m) * Float64(Float64(m * Float64(Float64(1.0 - m) / v)) + -1.0)) end
function tmp = code(m, v) tmp = (1.0 - m) * ((m * ((1.0 - m) / v)) + -1.0); end
code[m_, v_] := N[(N[(1.0 - m), $MachinePrecision] * N[(N[(m * N[(N[(1.0 - m), $MachinePrecision] / v), $MachinePrecision]), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - m\right) \cdot \left(m \cdot \frac{1 - m}{v} + -1\right)
\end{array}
Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Final simplification99.8%
(FPCore (m v) :precision binary64 (* (- 1.0 m) (+ (/ m (/ v (- 1.0 m))) -1.0)))
double code(double m, double v) {
return (1.0 - m) * ((m / (v / (1.0 - m))) + -1.0);
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
code = (1.0d0 - m) * ((m / (v / (1.0d0 - m))) + (-1.0d0))
end function
public static double code(double m, double v) {
return (1.0 - m) * ((m / (v / (1.0 - m))) + -1.0);
}
def code(m, v): return (1.0 - m) * ((m / (v / (1.0 - m))) + -1.0)
function code(m, v) return Float64(Float64(1.0 - m) * Float64(Float64(m / Float64(v / Float64(1.0 - m))) + -1.0)) end
function tmp = code(m, v) tmp = (1.0 - m) * ((m / (v / (1.0 - m))) + -1.0); end
code[m_, v_] := N[(N[(1.0 - m), $MachinePrecision] * N[(N[(m / N[(v / N[(1.0 - m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)
\end{array}
Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
metadata-eval99.8%
sub-neg99.8%
clear-num99.8%
un-div-inv99.9%
Applied egg-rr99.9%
Final simplification99.9%
(FPCore (m v) :precision binary64 (if (<= m 3e-202) -1.0 (+ m (/ m v))))
double code(double m, double v) {
double tmp;
if (m <= 3e-202) {
tmp = -1.0;
} else {
tmp = m + (m / v);
}
return tmp;
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
real(8) :: tmp
if (m <= 3d-202) then
tmp = -1.0d0
else
tmp = m + (m / v)
end if
code = tmp
end function
public static double code(double m, double v) {
double tmp;
if (m <= 3e-202) {
tmp = -1.0;
} else {
tmp = m + (m / v);
}
return tmp;
}
def code(m, v): tmp = 0 if m <= 3e-202: tmp = -1.0 else: tmp = m + (m / v) return tmp
function code(m, v) tmp = 0.0 if (m <= 3e-202) tmp = -1.0; else tmp = Float64(m + Float64(m / v)); end return tmp end
function tmp_2 = code(m, v) tmp = 0.0; if (m <= 3e-202) tmp = -1.0; else tmp = m + (m / v); end tmp_2 = tmp; end
code[m_, v_] := If[LessEqual[m, 3e-202], -1.0, N[(m + N[(m / v), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;m \leq 3 \cdot 10^{-202}:\\
\;\;\;\;-1\\
\mathbf{else}:\\
\;\;\;\;m + \frac{m}{v}\\
\end{array}
\end{array}
if m < 3.00000000000000011e-202Initial program 100.0%
*-commutative100.0%
sub-neg100.0%
associate-/l*99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in m around 0 85.9%
if 3.00000000000000011e-202 < m Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in m around 0 64.8%
Taylor expanded in m around inf 54.6%
+-commutative64.8%
distribute-lft-in64.8%
div-inv64.9%
*-rgt-identity64.9%
Applied egg-rr54.7%
Final simplification59.8%
(FPCore (m v) :precision binary64 (if (<= m 3.8e-200) -1.0 (/ m v)))
double code(double m, double v) {
double tmp;
if (m <= 3.8e-200) {
tmp = -1.0;
} else {
tmp = m / v;
}
return tmp;
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
real(8) :: tmp
if (m <= 3.8d-200) then
tmp = -1.0d0
else
tmp = m / v
end if
code = tmp
end function
public static double code(double m, double v) {
double tmp;
if (m <= 3.8e-200) {
tmp = -1.0;
} else {
tmp = m / v;
}
return tmp;
}
def code(m, v): tmp = 0 if m <= 3.8e-200: tmp = -1.0 else: tmp = m / v return tmp
function code(m, v) tmp = 0.0 if (m <= 3.8e-200) tmp = -1.0; else tmp = Float64(m / v); end return tmp end
function tmp_2 = code(m, v) tmp = 0.0; if (m <= 3.8e-200) tmp = -1.0; else tmp = m / v; end tmp_2 = tmp; end
code[m_, v_] := If[LessEqual[m, 3.8e-200], -1.0, N[(m / v), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;m \leq 3.8 \cdot 10^{-200}:\\
\;\;\;\;-1\\
\mathbf{else}:\\
\;\;\;\;\frac{m}{v}\\
\end{array}
\end{array}
if m < 3.8e-200Initial program 100.0%
*-commutative100.0%
sub-neg100.0%
associate-/l*99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in m around 0 85.9%
if 3.8e-200 < m Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in v around 0 89.7%
Taylor expanded in m around 0 54.7%
Final simplification59.8%
(FPCore (m v) :precision binary64 (+ (+ m (/ m v)) -1.0))
double code(double m, double v) {
return (m + (m / v)) + -1.0;
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
code = (m + (m / v)) + (-1.0d0)
end function
public static double code(double m, double v) {
return (m + (m / v)) + -1.0;
}
def code(m, v): return (m + (m / v)) + -1.0
function code(m, v) return Float64(Float64(m + Float64(m / v)) + -1.0) end
function tmp = code(m, v) tmp = (m + (m / v)) + -1.0; end
code[m_, v_] := N[(N[(m + N[(m / v), $MachinePrecision]), $MachinePrecision] + -1.0), $MachinePrecision]
\begin{array}{l}
\\
\left(m + \frac{m}{v}\right) + -1
\end{array}
Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in m around 0 70.5%
+-commutative70.5%
distribute-lft-in70.5%
div-inv70.7%
*-rgt-identity70.7%
Applied egg-rr70.7%
Final simplification70.7%
(FPCore (m v) :precision binary64 (if (<= m 2.7e-59) -1.0 m))
double code(double m, double v) {
double tmp;
if (m <= 2.7e-59) {
tmp = -1.0;
} else {
tmp = m;
}
return tmp;
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
real(8) :: tmp
if (m <= 2.7d-59) then
tmp = -1.0d0
else
tmp = m
end if
code = tmp
end function
public static double code(double m, double v) {
double tmp;
if (m <= 2.7e-59) {
tmp = -1.0;
} else {
tmp = m;
}
return tmp;
}
def code(m, v): tmp = 0 if m <= 2.7e-59: tmp = -1.0 else: tmp = m return tmp
function code(m, v) tmp = 0.0 if (m <= 2.7e-59) tmp = -1.0; else tmp = m; end return tmp end
function tmp_2 = code(m, v) tmp = 0.0; if (m <= 2.7e-59) tmp = -1.0; else tmp = m; end tmp_2 = tmp; end
code[m_, v_] := If[LessEqual[m, 2.7e-59], -1.0, m]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;m \leq 2.7 \cdot 10^{-59}:\\
\;\;\;\;-1\\
\mathbf{else}:\\
\;\;\;\;m\\
\end{array}
\end{array}
if m < 2.6999999999999999e-59Initial program 100.0%
*-commutative100.0%
sub-neg100.0%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in m around 0 57.1%
if 2.6999999999999999e-59 < m Initial program 99.8%
*-commutative99.8%
sub-neg99.8%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in m around 0 53.3%
Taylor expanded in m around inf 52.8%
Taylor expanded in v around inf 5.5%
Final simplification24.7%
(FPCore (m v) :precision binary64 (+ m -1.0))
double code(double m, double v) {
return m + -1.0;
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
code = m + (-1.0d0)
end function
public static double code(double m, double v) {
return m + -1.0;
}
def code(m, v): return m + -1.0
function code(m, v) return Float64(m + -1.0) end
function tmp = code(m, v) tmp = m + -1.0; end
code[m_, v_] := N[(m + -1.0), $MachinePrecision]
\begin{array}{l}
\\
m + -1
\end{array}
Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in v around inf 24.3%
neg-mul-124.3%
neg-sub024.3%
associate--r-24.3%
metadata-eval24.3%
Simplified24.3%
Final simplification24.3%
(FPCore (m v) :precision binary64 -1.0)
double code(double m, double v) {
return -1.0;
}
real(8) function code(m, v)
real(8), intent (in) :: m
real(8), intent (in) :: v
code = -1.0d0
end function
public static double code(double m, double v) {
return -1.0;
}
def code(m, v): return -1.0
function code(m, v) return -1.0 end
function tmp = code(m, v) tmp = -1.0; end
code[m_, v_] := -1.0
\begin{array}{l}
\\
-1
\end{array}
Initial program 99.9%
*-commutative99.9%
sub-neg99.9%
associate-/l*99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in m around 0 21.7%
Final simplification21.7%
herbie shell --seed 2024050
(FPCore (m v)
:name "b parameter of renormalized beta distribution"
:precision binary64
:pre (and (and (< 0.0 m) (< 0.0 v)) (< v 0.25))
(* (- (/ (* m (- 1.0 m)) v) 1.0) (- 1.0 m)))