
(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 10 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) (/ 1.0 (fma e (cos v) 1.0)))))
double code(double e, double v) {
return e * (sin(v) * (1.0 / fma(e, cos(v), 1.0)));
}
function code(e, v) return Float64(e * Float64(sin(v) * Float64(1.0 / fma(e, cos(v), 1.0)))) end
code[e_, v_] := N[(e * N[(N[Sin[v], $MachinePrecision] * N[(1.0 / N[(e * N[Cos[v], $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \left(\sin v \cdot \frac{1}{\mathsf{fma}\left(e, \cos v, 1\right)}\right)
\end{array}
Initial program 99.8%
div-inv99.8%
associate-*l*99.8%
+-commutative99.8%
fma-def99.8%
Applied egg-rr99.8%
Final simplification99.8%
(FPCore (e v) :precision binary64 (* (sin v) (/ 1.0 (+ (cos v) (/ 1.0 e)))))
double code(double e, double v) {
return sin(v) * (1.0 / (cos(v) + (1.0 / e)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) * (1.0d0 / (cos(v) + (1.0d0 / e)))
end function
public static double code(double e, double v) {
return Math.sin(v) * (1.0 / (Math.cos(v) + (1.0 / e)));
}
def code(e, v): return math.sin(v) * (1.0 / (math.cos(v) + (1.0 / e)))
function code(e, v) return Float64(sin(v) * Float64(1.0 / Float64(cos(v) + Float64(1.0 / e)))) end
function tmp = code(e, v) tmp = sin(v) * (1.0 / (cos(v) + (1.0 / e))); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * N[(1.0 / N[(N[Cos[v], $MachinePrecision] + N[(1.0 / e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \frac{1}{\cos v + \frac{1}{e}}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.6%
+-commutative99.6%
cos-neg99.6%
metadata-eval99.6%
sub-neg99.6%
div-sub99.6%
*-commutative99.6%
associate-/l*99.6%
*-inverses99.6%
/-rgt-identity99.6%
metadata-eval99.6%
associate-/r*99.6%
neg-mul-199.6%
unsub-neg99.6%
neg-mul-199.6%
associate-/r*99.6%
metadata-eval99.6%
distribute-neg-frac99.6%
metadata-eval99.6%
Simplified99.6%
clear-num98.8%
associate-/r/99.7%
Applied egg-rr99.7%
Final simplification99.7%
(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%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.6%
+-commutative99.6%
cos-neg99.6%
metadata-eval99.6%
sub-neg99.6%
div-sub99.6%
*-commutative99.6%
associate-/l*99.6%
*-inverses99.6%
/-rgt-identity99.6%
metadata-eval99.6%
associate-/r*99.6%
neg-mul-199.6%
unsub-neg99.6%
neg-mul-199.6%
associate-/r*99.6%
metadata-eval99.6%
distribute-neg-frac99.6%
metadata-eval99.6%
Simplified99.6%
Final simplification99.6%
(FPCore (e v) :precision binary64 (* e (* (sin v) (/ 1.0 (+ e 1.0)))))
double code(double e, double v) {
return e * (sin(v) * (1.0 / (e + 1.0)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (sin(v) * (1.0d0 / (e + 1.0d0)))
end function
public static double code(double e, double v) {
return e * (Math.sin(v) * (1.0 / (e + 1.0)));
}
def code(e, v): return e * (math.sin(v) * (1.0 / (e + 1.0)))
function code(e, v) return Float64(e * Float64(sin(v) * Float64(1.0 / Float64(e + 1.0)))) end
function tmp = code(e, v) tmp = e * (sin(v) * (1.0 / (e + 1.0))); end
code[e_, v_] := N[(e * N[(N[Sin[v], $MachinePrecision] * N[(1.0 / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \left(\sin v \cdot \frac{1}{e + 1}\right)
\end{array}
Initial program 99.8%
div-inv99.8%
associate-*l*99.8%
+-commutative99.8%
fma-def99.8%
Applied egg-rr99.8%
Taylor expanded in v around 0 99.0%
+-commutative99.0%
Simplified99.0%
Final simplification99.0%
(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%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.6%
+-commutative99.6%
cos-neg99.6%
metadata-eval99.6%
sub-neg99.6%
div-sub99.6%
*-commutative99.6%
associate-/l*99.6%
*-inverses99.6%
/-rgt-identity99.6%
metadata-eval99.6%
associate-/r*99.6%
neg-mul-199.6%
unsub-neg99.6%
neg-mul-199.6%
associate-/r*99.6%
metadata-eval99.6%
distribute-neg-frac99.6%
metadata-eval99.6%
Simplified99.6%
Taylor expanded in e around 0 98.2%
Final simplification98.2%
(FPCore (e v)
:precision binary64
(*
e
(/
-1.0
(-
(/ (- -1.0 e) v)
(* v (+ (* e -0.5) (* -0.16666666666666666 (- -1.0 e))))))))
double code(double e, double v) {
return e * (-1.0 / (((-1.0 - e) / v) - (v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e))))));
}
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 * (-0.5d0)) + ((-0.16666666666666666d0) * ((-1.0d0) - e))))))
end function
public static double code(double e, double v) {
return e * (-1.0 / (((-1.0 - e) / v) - (v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e))))));
}
def code(e, v): return e * (-1.0 / (((-1.0 - e) / v) - (v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e))))))
function code(e, v) return Float64(e * Float64(-1.0 / Float64(Float64(Float64(-1.0 - e) / v) - Float64(v * Float64(Float64(e * -0.5) + Float64(-0.16666666666666666 * Float64(-1.0 - e))))))) end
function tmp = code(e, v) tmp = e * (-1.0 / (((-1.0 - e) / v) - (v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))))); end
code[e_, v_] := N[(e * N[(-1.0 / N[(N[(N[(-1.0 - e), $MachinePrecision] / v), $MachinePrecision] - N[(v * N[(N[(e * -0.5), $MachinePrecision] + N[(-0.16666666666666666 * N[(-1.0 - e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{-1}{\frac{-1 - e}{v} - v \cdot \left(e \cdot -0.5 + -0.16666666666666666 \cdot \left(-1 - e\right)\right)}
\end{array}
Initial program 99.8%
div-inv99.8%
associate-*l*99.8%
+-commutative99.8%
fma-def99.8%
Applied egg-rr99.8%
log1p-expm1-u99.7%
un-div-inv99.7%
Applied egg-rr99.7%
log1p-expm1-u99.8%
clear-num99.6%
frac-2neg99.6%
metadata-eval99.6%
Applied egg-rr99.6%
distribute-neg-frac99.6%
neg-sub099.6%
fma-udef99.6%
+-commutative99.6%
associate--r+99.6%
metadata-eval99.6%
Simplified99.6%
Taylor expanded in v around 0 54.1%
Final simplification54.1%
(FPCore (e v) :precision binary64 (* v (/ e (+ e 1.0))))
double code(double e, double v) {
return v * (e / (e + 1.0));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = v * (e / (e + 1.0d0))
end function
public static double code(double e, double v) {
return v * (e / (e + 1.0));
}
def code(e, v): return v * (e / (e + 1.0))
function code(e, v) return Float64(v * Float64(e / Float64(e + 1.0))) end
function tmp = code(e, v) tmp = v * (e / (e + 1.0)); end
code[e_, v_] := N[(v * N[(e / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
v \cdot \frac{e}{e + 1}
\end{array}
Initial program 99.8%
Taylor expanded in v around 0 52.8%
associate-/l*52.7%
associate-/r/52.8%
Simplified52.8%
Final simplification52.8%
(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%
Taylor expanded in v around 0 52.8%
associate-/l*52.7%
associate-/r/52.8%
Simplified52.8%
Taylor expanded in e around 0 51.9%
Final simplification51.9%
(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%
Taylor expanded in v around 0 52.8%
associate-/l*52.7%
associate-/r/52.8%
Simplified52.8%
Taylor expanded in e around inf 4.6%
Final simplification4.6%
herbie shell --seed 2024019
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))