
(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 (/ (* (sin v) e) (+ (* (cos v) e) 1.0)))
double code(double e, double v) {
return (sin(v) * e) / ((cos(v) * e) + 1.0);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (sin(v) * e) / ((cos(v) * e) + 1.0d0)
end function
public static double code(double e, double v) {
return (Math.sin(v) * e) / ((Math.cos(v) * e) + 1.0);
}
def code(e, v): return (math.sin(v) * e) / ((math.cos(v) * e) + 1.0)
function code(e, v) return Float64(Float64(sin(v) * e) / Float64(Float64(cos(v) * e) + 1.0)) end
function tmp = code(e, v) tmp = (sin(v) * e) / ((cos(v) * e) + 1.0); end
code[e_, v_] := N[(N[(N[Sin[v], $MachinePrecision] * e), $MachinePrecision] / N[(N[(N[Cos[v], $MachinePrecision] * e), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sin v \cdot e}{\cos v \cdot e + 1}
\end{array}
Initial program 99.8%
Final simplification99.8%
(FPCore (e v) :precision binary64 (* (/ (sin v) (fma (cos v) e 1.0)) e))
double code(double e, double v) {
return (sin(v) / fma(cos(v), e, 1.0)) * e;
}
function code(e, v) return Float64(Float64(sin(v) / fma(cos(v), e, 1.0)) * e) end
code[e_, v_] := N[(N[(N[Sin[v], $MachinePrecision] / N[(N[Cos[v], $MachinePrecision] * e + 1.0), $MachinePrecision]), $MachinePrecision] * e), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sin v}{\mathsf{fma}\left(\cos v, e, 1\right)} \cdot e
\end{array}
Initial program 99.8%
lift-/.f64N/A
lift-*.f64N/A
associate-/l*N/A
*-commutativeN/A
lower-*.f64N/A
lower-/.f6499.8
lift-+.f64N/A
+-commutativeN/A
lift-*.f64N/A
*-commutativeN/A
lower-fma.f6499.8
Applied rewrites99.8%
(FPCore (e v) :precision binary64 (/ (* (sin v) e) (+ 1.0 e)))
double code(double e, double v) {
return (sin(v) * e) / (1.0 + e);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (sin(v) * e) / (1.0d0 + e)
end function
public static double code(double e, double v) {
return (Math.sin(v) * e) / (1.0 + e);
}
def code(e, v): return (math.sin(v) * e) / (1.0 + e)
function code(e, v) return Float64(Float64(sin(v) * e) / Float64(1.0 + e)) end
function tmp = code(e, v) tmp = (sin(v) * e) / (1.0 + e); end
code[e_, v_] := N[(N[(N[Sin[v], $MachinePrecision] * e), $MachinePrecision] / N[(1.0 + e), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sin v \cdot e}{1 + e}
\end{array}
Initial program 99.8%
Taylor expanded in v around 0
lower-+.f6499.1
Applied rewrites99.1%
Final simplification99.1%
(FPCore (e v) :precision binary64 (* (/ e (+ 1.0 e)) (sin v)))
double code(double e, double v) {
return (e / (1.0 + e)) * sin(v);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (e / (1.0d0 + e)) * sin(v)
end function
public static double code(double e, double v) {
return (e / (1.0 + e)) * Math.sin(v);
}
def code(e, v): return (e / (1.0 + e)) * math.sin(v)
function code(e, v) return Float64(Float64(e / Float64(1.0 + e)) * sin(v)) end
function tmp = code(e, v) tmp = (e / (1.0 + e)) * sin(v); end
code[e_, v_] := N[(N[(e / N[(1.0 + e), $MachinePrecision]), $MachinePrecision] * N[Sin[v], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{1 + e} \cdot \sin v
\end{array}
Initial program 99.8%
Taylor expanded in v around 0
lower-+.f6499.1
Applied rewrites99.1%
lift-/.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-/l*N/A
lower-*.f64N/A
lower-/.f6499.1
Applied rewrites99.1%
Final simplification99.1%
(FPCore (e v) :precision binary64 (* (sin v) e))
double code(double e, double v) {
return sin(v) * e;
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) * e
end function
public static double code(double e, double v) {
return Math.sin(v) * e;
}
def code(e, v): return math.sin(v) * e
function code(e, v) return Float64(sin(v) * e) end
function tmp = code(e, v) tmp = sin(v) * e; end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * e), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot e
\end{array}
Initial program 99.8%
Taylor expanded in e around 0
*-commutativeN/A
lower-*.f64N/A
lower-sin.f6497.8
Applied rewrites97.8%
(FPCore (e v) :precision binary64 (/ (* v e) (+ 1.0 e)))
double code(double e, double v) {
return (v * e) / (1.0 + e);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (v * e) / (1.0d0 + e)
end function
public static double code(double e, double v) {
return (v * e) / (1.0 + e);
}
def code(e, v): return (v * e) / (1.0 + e)
function code(e, v) return Float64(Float64(v * e) / Float64(1.0 + e)) end
function tmp = code(e, v) tmp = (v * e) / (1.0 + e); end
code[e_, v_] := N[(N[(v * e), $MachinePrecision] / N[(1.0 + e), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{v \cdot e}{1 + e}
\end{array}
Initial program 99.8%
Taylor expanded in v around 0
associate-*l/N/A
lower-*.f64N/A
lower-/.f64N/A
lower-+.f6450.2
Applied rewrites50.2%
Applied rewrites50.2%
Final simplification50.2%
(FPCore (e v) :precision binary64 (* (/ e (+ 1.0 e)) v))
double code(double e, double v) {
return (e / (1.0 + e)) * v;
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (e / (1.0d0 + e)) * v
end function
public static double code(double e, double v) {
return (e / (1.0 + e)) * v;
}
def code(e, v): return (e / (1.0 + e)) * v
function code(e, v) return Float64(Float64(e / Float64(1.0 + e)) * v) end
function tmp = code(e, v) tmp = (e / (1.0 + e)) * v; end
code[e_, v_] := N[(N[(e / N[(1.0 + e), $MachinePrecision]), $MachinePrecision] * v), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{1 + e} \cdot v
\end{array}
Initial program 99.8%
Taylor expanded in v around 0
associate-*l/N/A
lower-*.f64N/A
lower-/.f64N/A
lower-+.f6450.2
Applied rewrites50.2%
(FPCore (e v) :precision binary64 (fma v e (* (* (- e) v) e)))
double code(double e, double v) {
return fma(v, e, ((-e * v) * e));
}
function code(e, v) return fma(v, e, Float64(Float64(Float64(-e) * v) * e)) end
code[e_, v_] := N[(v * e + N[(N[((-e) * v), $MachinePrecision] * e), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(v, e, \left(\left(-e\right) \cdot v\right) \cdot e\right)
\end{array}
Initial program 99.8%
Taylor expanded in v around 0
associate-*l/N/A
lower-*.f64N/A
lower-/.f64N/A
lower-+.f6450.2
Applied rewrites50.2%
Taylor expanded in e around 0
Applied rewrites48.9%
Taylor expanded in e around 0
Applied rewrites49.4%
Applied rewrites49.4%
(FPCore (e v) :precision binary64 (* (* (- 1.0 e) v) e))
double code(double e, double v) {
return ((1.0 - e) * v) * e;
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = ((1.0d0 - e) * v) * e
end function
public static double code(double e, double v) {
return ((1.0 - e) * v) * e;
}
def code(e, v): return ((1.0 - e) * v) * e
function code(e, v) return Float64(Float64(Float64(1.0 - e) * v) * e) end
function tmp = code(e, v) tmp = ((1.0 - e) * v) * e; end
code[e_, v_] := N[(N[(N[(1.0 - e), $MachinePrecision] * v), $MachinePrecision] * e), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(1 - e\right) \cdot v\right) \cdot e
\end{array}
Initial program 99.8%
Taylor expanded in v around 0
associate-*l/N/A
lower-*.f64N/A
lower-/.f64N/A
lower-+.f6450.2
Applied rewrites50.2%
Taylor expanded in e around 0
Applied rewrites48.9%
Taylor expanded in e around 0
Applied rewrites49.4%
Taylor expanded in e around 0
Applied rewrites49.4%
(FPCore (e v) :precision binary64 (* v e))
double code(double e, double v) {
return v * e;
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = v * e
end function
public static double code(double e, double v) {
return v * e;
}
def code(e, v): return v * e
function code(e, v) return Float64(v * e) end
function tmp = code(e, v) tmp = v * e; end
code[e_, v_] := N[(v * e), $MachinePrecision]
\begin{array}{l}
\\
v \cdot e
\end{array}
Initial program 99.8%
Taylor expanded in v around 0
associate-*l/N/A
lower-*.f64N/A
lower-/.f64N/A
lower-+.f6450.2
Applied rewrites50.2%
Taylor expanded in e around 0
Applied rewrites48.9%
Final simplification48.9%
herbie shell --seed 2024332
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))