
(FPCore (e v) :precision binary64 (/ (* e (sin v)) (+ 1.0 (* e (cos v)))))
double code(double e, double v) {
return (e * sin(v)) / (1.0 + (e * cos(v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (e * sin(v)) / (1.0d0 + (e * cos(v)))
end function
public static double code(double e, double v) {
return (e * Math.sin(v)) / (1.0 + (e * Math.cos(v)));
}
def code(e, v): return (e * math.sin(v)) / (1.0 + (e * math.cos(v)))
function code(e, v) return Float64(Float64(e * sin(v)) / Float64(1.0 + Float64(e * cos(v)))) end
function tmp = code(e, v) tmp = (e * sin(v)) / (1.0 + (e * cos(v))); end
code[e_, v_] := N[(N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision] / N[(1.0 + N[(e * N[Cos[v], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e \cdot \sin v}{1 + e \cdot \cos v}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 11 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (e v) :precision binary64 (/ (* e (sin v)) (+ 1.0 (* e (cos v)))))
double code(double e, double v) {
return (e * sin(v)) / (1.0 + (e * cos(v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (e * sin(v)) / (1.0d0 + (e * cos(v)))
end function
public static double code(double e, double v) {
return (e * Math.sin(v)) / (1.0 + (e * Math.cos(v)));
}
def code(e, v): return (e * math.sin(v)) / (1.0 + (e * math.cos(v)))
function code(e, v) return Float64(Float64(e * sin(v)) / Float64(1.0 + Float64(e * cos(v)))) end
function tmp = code(e, v) tmp = (e * sin(v)) / (1.0 + (e * cos(v))); end
code[e_, v_] := N[(N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision] / N[(1.0 + N[(e * N[Cos[v], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e \cdot \sin v}{1 + e \cdot \cos v}
\end{array}
(FPCore (e v) :precision binary64 (* (/ e (fma e (cos v) 1.0)) (sin v)))
double code(double e, double v) {
return (e / fma(e, cos(v), 1.0)) * sin(v);
}
function code(e, v) return Float64(Float64(e / fma(e, cos(v), 1.0)) * sin(v)) end
code[e_, v_] := N[(N[(e / N[(e * N[Cos[v], $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision] * N[Sin[v], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{\mathsf{fma}\left(e, \cos v, 1\right)} \cdot \sin v
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Final simplification99.8%
(FPCore (e v) :precision binary64 (/ (* e (sin v)) (+ 1.0 (* e (cos v)))))
double code(double e, double v) {
return (e * sin(v)) / (1.0 + (e * cos(v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (e * sin(v)) / (1.0d0 + (e * cos(v)))
end function
public static double code(double e, double v) {
return (e * Math.sin(v)) / (1.0 + (e * Math.cos(v)));
}
def code(e, v): return (e * math.sin(v)) / (1.0 + (e * math.cos(v)))
function code(e, v) return Float64(Float64(e * sin(v)) / Float64(1.0 + Float64(e * cos(v)))) end
function tmp = code(e, v) tmp = (e * sin(v)) / (1.0 + (e * cos(v))); end
code[e_, v_] := N[(N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision] / N[(1.0 + N[(e * N[Cos[v], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e \cdot \sin v}{1 + e \cdot \cos v}
\end{array}
Initial program 99.8%
Final simplification99.8%
(FPCore (e v) :precision binary64 (/ (sin v) (+ (cos v) (/ 1.0 e))))
double code(double e, double v) {
return sin(v) / (cos(v) + (1.0 / e));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) / (cos(v) + (1.0d0 / e))
end function
public static double code(double e, double v) {
return Math.sin(v) / (Math.cos(v) + (1.0 / e));
}
def code(e, v): return math.sin(v) / (math.cos(v) + (1.0 / e))
function code(e, v) return Float64(sin(v) / Float64(cos(v) + Float64(1.0 / e))) end
function tmp = code(e, v) tmp = sin(v) / (cos(v) + (1.0 / e)); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] / N[(N[Cos[v], $MachinePrecision] + N[(1.0 / e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sin v}{\cos v + \frac{1}{e}}
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
*-commutative99.8%
clear-num99.7%
un-div-inv99.7%
Applied egg-rr99.7%
Taylor expanded in e around inf 99.7%
Final simplification99.7%
(FPCore (e v) :precision binary64 (* (sin v) (/ e (+ e 1.0))))
double code(double e, double v) {
return sin(v) * (e / (e + 1.0));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) * (e / (e + 1.0d0))
end function
public static double code(double e, double v) {
return Math.sin(v) * (e / (e + 1.0));
}
def code(e, v): return math.sin(v) * (e / (e + 1.0))
function code(e, v) return Float64(sin(v) * Float64(e / Float64(e + 1.0))) end
function tmp = code(e, v) tmp = sin(v) * (e / (e + 1.0)); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * N[(e / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \frac{e}{e + 1}
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 99.3%
+-commutative99.3%
Simplified99.3%
Final simplification99.3%
(FPCore (e v) :precision binary64 (* e (sin v)))
double code(double e, double v) {
return e * sin(v);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * sin(v)
end function
public static double code(double e, double v) {
return e * Math.sin(v);
}
def code(e, v): return e * math.sin(v)
function code(e, v) return Float64(e * sin(v)) end
function tmp = code(e, v) tmp = e * sin(v); end
code[e_, v_] := N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \sin v
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in e around 0 98.4%
Final simplification98.4%
(FPCore (e v) :precision binary64 (/ e (+ (* v (- (* e -0.5) (* (+ e 1.0) -0.16666666666666666))) (+ (/ e v) (/ 1.0 v)))))
double code(double e, double v) {
return e / ((v * ((e * -0.5) - ((e + 1.0) * -0.16666666666666666))) + ((e / v) + (1.0 / v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e / ((v * ((e * (-0.5d0)) - ((e + 1.0d0) * (-0.16666666666666666d0)))) + ((e / v) + (1.0d0 / v)))
end function
public static double code(double e, double v) {
return e / ((v * ((e * -0.5) - ((e + 1.0) * -0.16666666666666666))) + ((e / v) + (1.0 / v)));
}
def code(e, v): return e / ((v * ((e * -0.5) - ((e + 1.0) * -0.16666666666666666))) + ((e / v) + (1.0 / v)))
function code(e, v) return Float64(e / Float64(Float64(v * Float64(Float64(e * -0.5) - Float64(Float64(e + 1.0) * -0.16666666666666666))) + Float64(Float64(e / v) + Float64(1.0 / v)))) end
function tmp = code(e, v) tmp = e / ((v * ((e * -0.5) - ((e + 1.0) * -0.16666666666666666))) + ((e / v) + (1.0 / v))); end
code[e_, v_] := N[(e / N[(N[(v * N[(N[(e * -0.5), $MachinePrecision] - N[(N[(e + 1.0), $MachinePrecision] * -0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(e / v), $MachinePrecision] + N[(1.0 / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{v \cdot \left(e \cdot -0.5 - \left(e + 1\right) \cdot -0.16666666666666666\right) + \left(\frac{e}{v} + \frac{1}{v}\right)}
\end{array}
Initial program 99.8%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 57.2%
Final simplification57.2%
(FPCore (e v)
:precision binary64
(*
e
(/
-1.0
(+
(* v (- (+ -0.16666666666666666 (* e -0.16666666666666666)) (* e -0.5)))
(/ (- -1.0 e) v)))))
double code(double e, double v) {
return e * (-1.0 / ((v * ((-0.16666666666666666 + (e * -0.16666666666666666)) - (e * -0.5))) + ((-1.0 - e) / v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * ((-1.0d0) / ((v * (((-0.16666666666666666d0) + (e * (-0.16666666666666666d0))) - (e * (-0.5d0)))) + (((-1.0d0) - e) / v)))
end function
public static double code(double e, double v) {
return e * (-1.0 / ((v * ((-0.16666666666666666 + (e * -0.16666666666666666)) - (e * -0.5))) + ((-1.0 - e) / v)));
}
def code(e, v): return e * (-1.0 / ((v * ((-0.16666666666666666 + (e * -0.16666666666666666)) - (e * -0.5))) + ((-1.0 - e) / v)))
function code(e, v) return Float64(e * Float64(-1.0 / Float64(Float64(v * Float64(Float64(-0.16666666666666666 + Float64(e * -0.16666666666666666)) - Float64(e * -0.5))) + Float64(Float64(-1.0 - e) / v)))) end
function tmp = code(e, v) tmp = e * (-1.0 / ((v * ((-0.16666666666666666 + (e * -0.16666666666666666)) - (e * -0.5))) + ((-1.0 - e) / v))); end
code[e_, v_] := N[(e * N[(-1.0 / N[(N[(v * N[(N[(-0.16666666666666666 + N[(e * -0.16666666666666666), $MachinePrecision]), $MachinePrecision] - N[(e * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(-1.0 - e), $MachinePrecision] / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{-1}{v \cdot \left(\left(-0.16666666666666666 + e \cdot -0.16666666666666666\right) - e \cdot -0.5\right) + \frac{-1 - e}{v}}
\end{array}
Initial program 99.8%
associate-/l*99.6%
Simplified99.6%
frac-2neg99.6%
div-inv99.7%
distribute-neg-frac99.7%
+-commutative99.7%
fma-udef99.7%
Applied egg-rr99.7%
Taylor expanded in v around 0 57.3%
+-commutative57.3%
+-commutative57.3%
distribute-lft-out57.3%
*-lft-identity57.3%
associate-*r/57.3%
associate-*l/57.3%
distribute-rgt-in57.3%
associate-*r/57.3%
*-rgt-identity57.3%
*-lft-identity57.3%
+-commutative57.3%
*-commutative57.3%
*-commutative57.3%
distribute-rgt-in57.3%
metadata-eval57.3%
Simplified57.3%
Final simplification57.3%
(FPCore (e v) :precision binary64 (* e (/ -1.0 (- (/ (- -1.0 e) v) (* v (* e -0.3333333333333333))))))
double code(double e, double v) {
return e * (-1.0 / (((-1.0 - e) / v) - (v * (e * -0.3333333333333333))));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * ((-1.0d0) / ((((-1.0d0) - e) / v) - (v * (e * (-0.3333333333333333d0)))))
end function
public static double code(double e, double v) {
return e * (-1.0 / (((-1.0 - e) / v) - (v * (e * -0.3333333333333333))));
}
def code(e, v): return e * (-1.0 / (((-1.0 - e) / v) - (v * (e * -0.3333333333333333))))
function code(e, v) return Float64(e * Float64(-1.0 / Float64(Float64(Float64(-1.0 - e) / v) - Float64(v * Float64(e * -0.3333333333333333))))) end
function tmp = code(e, v) tmp = e * (-1.0 / (((-1.0 - e) / v) - (v * (e * -0.3333333333333333)))); end
code[e_, v_] := N[(e * N[(-1.0 / N[(N[(N[(-1.0 - e), $MachinePrecision] / v), $MachinePrecision] - N[(v * N[(e * -0.3333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{-1}{\frac{-1 - e}{v} - v \cdot \left(e \cdot -0.3333333333333333\right)}
\end{array}
Initial program 99.8%
associate-/l*99.6%
Simplified99.6%
frac-2neg99.6%
div-inv99.7%
distribute-neg-frac99.7%
+-commutative99.7%
fma-udef99.7%
Applied egg-rr99.7%
Taylor expanded in v around 0 57.3%
+-commutative57.3%
+-commutative57.3%
distribute-lft-out57.3%
*-lft-identity57.3%
associate-*r/57.3%
associate-*l/57.3%
distribute-rgt-in57.3%
associate-*r/57.3%
*-rgt-identity57.3%
*-lft-identity57.3%
+-commutative57.3%
*-commutative57.3%
*-commutative57.3%
distribute-rgt-in57.3%
metadata-eval57.3%
Simplified57.3%
Taylor expanded in e around inf 56.9%
*-commutative56.9%
associate-*l*56.9%
Simplified56.9%
Final simplification56.9%
(FPCore (e v) :precision binary64 (* e (/ v (+ e 1.0))))
double code(double e, double v) {
return e * (v / (e + 1.0));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (v / (e + 1.0d0))
end function
public static double code(double e, double v) {
return e * (v / (e + 1.0));
}
def code(e, v): return e * (v / (e + 1.0))
function code(e, v) return Float64(e * Float64(v / Float64(e + 1.0))) end
function tmp = code(e, v) tmp = e * (v / (e + 1.0)); end
code[e_, v_] := N[(e * N[(v / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{v}{e + 1}
\end{array}
Initial program 99.8%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 56.2%
+-commutative56.2%
Simplified56.2%
clear-num54.5%
associate-/r/56.3%
clear-num56.3%
Applied egg-rr56.3%
Final simplification56.3%
(FPCore (e v) :precision binary64 (* e v))
double code(double e, double v) {
return e * v;
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * v
end function
public static double code(double e, double v) {
return e * v;
}
def code(e, v): return e * v
function code(e, v) return Float64(e * v) end
function tmp = code(e, v) tmp = e * v; end
code[e_, v_] := N[(e * v), $MachinePrecision]
\begin{array}{l}
\\
e \cdot v
\end{array}
Initial program 99.8%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 56.2%
+-commutative56.2%
Simplified56.2%
Taylor expanded in e around 0 55.5%
Final simplification55.5%
(FPCore (e v) :precision binary64 v)
double code(double e, double v) {
return v;
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = v
end function
public static double code(double e, double v) {
return v;
}
def code(e, v): return v
function code(e, v) return v end
function tmp = code(e, v) tmp = v; end
code[e_, v_] := v
\begin{array}{l}
\\
v
\end{array}
Initial program 99.8%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 56.2%
+-commutative56.2%
Simplified56.2%
Taylor expanded in e around inf 4.8%
Final simplification4.8%
herbie shell --seed 2023199
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))