
(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 (/ (sin v) (+ (* e (cos v)) 1.0))))
double code(double e, double v) {
return e * (sin(v) / ((e * cos(v)) + 1.0));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (sin(v) / ((e * cos(v)) + 1.0d0))
end function
public static double code(double e, double v) {
return e * (Math.sin(v) / ((e * Math.cos(v)) + 1.0));
}
def code(e, v): return e * (math.sin(v) / ((e * math.cos(v)) + 1.0))
function code(e, v) return Float64(e * Float64(sin(v) / Float64(Float64(e * cos(v)) + 1.0))) end
function tmp = code(e, v) tmp = e * (sin(v) / ((e * cos(v)) + 1.0)); end
code[e_, v_] := N[(e * N[(N[Sin[v], $MachinePrecision] / N[(N[(e * N[Cos[v], $MachinePrecision]), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{\sin v}{e \cdot \cos v + 1}
\end{array}
Initial program 99.8%
associate-/l*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
fma-undefine99.8%
Applied egg-rr99.8%
(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%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in e around inf 99.6%
Taylor expanded in v around inf 99.5%
(FPCore (e v) :precision binary64 (/ (* e (sin v)) (+ (+ e 2.0) -1.0)))
double code(double e, double v) {
return (e * sin(v)) / ((e + 2.0) + -1.0);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (e * sin(v)) / ((e + 2.0d0) + (-1.0d0))
end function
public static double code(double e, double v) {
return (e * Math.sin(v)) / ((e + 2.0) + -1.0);
}
def code(e, v): return (e * math.sin(v)) / ((e + 2.0) + -1.0)
function code(e, v) return Float64(Float64(e * sin(v)) / Float64(Float64(e + 2.0) + -1.0)) end
function tmp = code(e, v) tmp = (e * sin(v)) / ((e + 2.0) + -1.0); end
code[e_, v_] := N[(N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision] / N[(N[(e + 2.0), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e \cdot \sin v}{\left(e + 2\right) + -1}
\end{array}
Initial program 99.8%
Taylor expanded in v around 0 98.6%
expm1-log1p-u98.6%
expm1-undefine98.6%
+-commutative98.6%
Applied egg-rr98.6%
sub-neg98.6%
log1p-undefine98.6%
rem-exp-log98.6%
+-commutative98.6%
associate-+r+98.6%
metadata-eval98.6%
metadata-eval98.6%
Simplified98.6%
Final simplification98.6%
(FPCore (e v) :precision binary64 (/ (* e (sin v)) (+ e 1.0)))
double code(double e, double v) {
return (e * sin(v)) / (e + 1.0);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (e * sin(v)) / (e + 1.0d0)
end function
public static double code(double e, double v) {
return (e * Math.sin(v)) / (e + 1.0);
}
def code(e, v): return (e * math.sin(v)) / (e + 1.0)
function code(e, v) return Float64(Float64(e * sin(v)) / Float64(e + 1.0)) end
function tmp = code(e, v) tmp = (e * sin(v)) / (e + 1.0); end
code[e_, v_] := N[(N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision] / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e \cdot \sin v}{e + 1}
\end{array}
Initial program 99.8%
Taylor expanded in v around 0 98.6%
Final simplification98.6%
(FPCore (e v) :precision binary64 (* (* e (sin v)) (- 1.0 e)))
double code(double e, double v) {
return (e * sin(v)) * (1.0 - e);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (e * sin(v)) * (1.0d0 - e)
end function
public static double code(double e, double v) {
return (e * Math.sin(v)) * (1.0 - e);
}
def code(e, v): return (e * math.sin(v)) * (1.0 - e)
function code(e, v) return Float64(Float64(e * sin(v)) * Float64(1.0 - e)) end
function tmp = code(e, v) tmp = (e * sin(v)) * (1.0 - e); end
code[e_, v_] := N[(N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision] * N[(1.0 - e), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(e \cdot \sin v\right) \cdot \left(1 - e\right)
\end{array}
Initial program 99.8%
Taylor expanded in v around 0 98.6%
Taylor expanded in e around inf 98.4%
Taylor expanded in e around 0 98.0%
distribute-rgt-in98.1%
*-lft-identity98.1%
associate-*r*98.1%
neg-mul-198.1%
associate-*l*98.1%
distribute-rgt-in98.0%
sub-neg98.0%
*-commutative98.0%
*-commutative98.0%
Simplified98.0%
Final simplification98.0%
(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%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in e around 0 97.8%
(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(Float64(e * v) / Float64(e + 1.0)) end
function tmp = code(e, v) tmp = (e * v) / (e + 1.0); end
code[e_, v_] := N[(N[(e * v), $MachinePrecision] / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e \cdot v}{e + 1}
\end{array}
Initial program 99.8%
associate-/l*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 47.3%
Final simplification47.3%
(FPCore (e v) :precision binary64 (/ e (/ (+ e 1.0) v)))
double code(double e, double v) {
return e / ((e + 1.0) / v);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e / ((e + 1.0d0) / v)
end function
public static double code(double e, double v) {
return e / ((e + 1.0) / v);
}
def code(e, v): return e / ((e + 1.0) / v)
function code(e, v) return Float64(e / Float64(Float64(e + 1.0) / v)) end
function tmp = code(e, v) tmp = e / ((e + 1.0) / v); end
code[e_, v_] := N[(e / N[(N[(e + 1.0), $MachinePrecision] / v), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{\frac{e + 1}{v}}
\end{array}
Initial program 99.8%
associate-/l*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
clear-num99.6%
un-div-inv99.6%
Applied egg-rr99.6%
Taylor expanded in v around 0 47.3%
Final simplification47.3%
(FPCore (e v) :precision binary64 (* e (- v (* e v))))
double code(double e, double v) {
return e * (v - (e * v));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (v - (e * v))
end function
public static double code(double e, double v) {
return e * (v - (e * v));
}
def code(e, v): return e * (v - (e * v))
function code(e, v) return Float64(e * Float64(v - Float64(e * v))) end
function tmp = code(e, v) tmp = e * (v - (e * v)); end
code[e_, v_] := N[(e * N[(v - N[(e * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \left(v - e \cdot v\right)
\end{array}
Initial program 99.8%
associate-/l*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 47.3%
Taylor expanded in e around 0 46.8%
mul-1-neg46.8%
unsub-neg46.8%
Simplified46.8%
(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*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 47.3%
Taylor expanded in e around 0 46.5%
(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*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 47.3%
Taylor expanded in e around inf 4.4%
herbie shell --seed 2024132
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))