
(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) (+ 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(e * Float64(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[(e * N[(N[Sin[v], $MachinePrecision] / N[(1.0 + N[(e * N[Cos[v], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{\sin v}{1 + e \cdot \cos v}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-*l/99.8%
+-commutative99.8%
cos-neg99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around inf 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*99.5%
+-commutative99.5%
cos-neg99.5%
metadata-eval99.5%
sub-neg99.5%
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 (/ (sin v) (+ 1.0 (/ 1.0 e))))
double code(double e, double v) {
return sin(v) / (1.0 + (1.0 / e));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) / (1.0d0 + (1.0d0 / e))
end function
public static double code(double e, double v) {
return Math.sin(v) / (1.0 + (1.0 / e));
}
def code(e, v): return math.sin(v) / (1.0 + (1.0 / e))
function code(e, v) return Float64(sin(v) / Float64(1.0 + Float64(1.0 / e))) end
function tmp = code(e, v) tmp = sin(v) / (1.0 + (1.0 / e)); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] / N[(1.0 + N[(1.0 / e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sin v}{1 + \frac{1}{e}}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.5%
+-commutative99.5%
cos-neg99.5%
metadata-eval99.5%
sub-neg99.5%
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 v around 0 98.2%
Final simplification98.2%
(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 98.4%
Final simplification98.4%
(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%
*-commutative99.8%
cos-neg99.8%
associate-*l/99.8%
+-commutative99.8%
cos-neg99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in e around 0 97.8%
Final simplification97.8%
(FPCore (e v) :precision binary64 (/ e (+ (* v (- (* e -0.5) (* (+ 1.0 e) -0.16666666666666666))) (+ (/ 1.0 v) (/ e v)))))
double code(double e, double v) {
return e / ((v * ((e * -0.5) - ((1.0 + e) * -0.16666666666666666))) + ((1.0 / v) + (e / v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e / ((v * ((e * (-0.5d0)) - ((1.0d0 + e) * (-0.16666666666666666d0)))) + ((1.0d0 / v) + (e / v)))
end function
public static double code(double e, double v) {
return e / ((v * ((e * -0.5) - ((1.0 + e) * -0.16666666666666666))) + ((1.0 / v) + (e / v)));
}
def code(e, v): return e / ((v * ((e * -0.5) - ((1.0 + e) * -0.16666666666666666))) + ((1.0 / v) + (e / v)))
function code(e, v) return Float64(e / Float64(Float64(v * Float64(Float64(e * -0.5) - Float64(Float64(1.0 + e) * -0.16666666666666666))) + Float64(Float64(1.0 / v) + Float64(e / v)))) end
function tmp = code(e, v) tmp = e / ((v * ((e * -0.5) - ((1.0 + e) * -0.16666666666666666))) + ((1.0 / v) + (e / v))); end
code[e_, v_] := N[(e / N[(N[(v * N[(N[(e * -0.5), $MachinePrecision] - N[(N[(1.0 + e), $MachinePrecision] * -0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(1.0 / v), $MachinePrecision] + N[(e / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{v \cdot \left(e \cdot -0.5 - \left(1 + e\right) \cdot -0.16666666666666666\right) + \left(\frac{1}{v} + \frac{e}{v}\right)}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-*l/99.8%
+-commutative99.8%
cos-neg99.8%
fma-def99.8%
Simplified99.8%
associate-*l/99.8%
*-commutative99.8%
fma-udef99.8%
+-commutative99.8%
associate-/l*99.6%
+-commutative99.6%
fma-udef99.6%
Applied egg-rr99.6%
Taylor expanded in v around 0 48.9%
Final simplification48.9%
(FPCore (e v) :precision binary64 (/ e (+ (/ 1.0 v) (* v 0.16666666666666666))))
double code(double e, double v) {
return e / ((1.0 / v) + (v * 0.16666666666666666));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e / ((1.0d0 / v) + (v * 0.16666666666666666d0))
end function
public static double code(double e, double v) {
return e / ((1.0 / v) + (v * 0.16666666666666666));
}
def code(e, v): return e / ((1.0 / v) + (v * 0.16666666666666666))
function code(e, v) return Float64(e / Float64(Float64(1.0 / v) + Float64(v * 0.16666666666666666))) end
function tmp = code(e, v) tmp = e / ((1.0 / v) + (v * 0.16666666666666666)); end
code[e_, v_] := N[(e / N[(N[(1.0 / v), $MachinePrecision] + N[(v * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{\frac{1}{v} + v \cdot 0.16666666666666666}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-*l/99.8%
+-commutative99.8%
cos-neg99.8%
fma-def99.8%
Simplified99.8%
associate-*l/99.8%
*-commutative99.8%
fma-udef99.8%
+-commutative99.8%
associate-/l*99.6%
+-commutative99.6%
fma-udef99.6%
Applied egg-rr99.6%
Taylor expanded in e around 0 97.6%
Taylor expanded in v around 0 48.1%
Final simplification48.1%
(FPCore (e v) :precision binary64 (* e (* v (- 1.0 e))))
double code(double e, double v) {
return e * (v * (1.0 - e));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (v * (1.0d0 - e))
end function
public static double code(double e, double v) {
return e * (v * (1.0 - e));
}
def code(e, v): return e * (v * (1.0 - e))
function code(e, v) return Float64(e * Float64(v * Float64(1.0 - e))) end
function tmp = code(e, v) tmp = e * (v * (1.0 - e)); end
code[e_, v_] := N[(e * N[(v * N[(1.0 - e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \left(v \cdot \left(1 - e\right)\right)
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-*l/99.8%
+-commutative99.8%
cos-neg99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 47.6%
+-commutative47.6%
Simplified47.6%
Taylor expanded in e around 0 47.2%
mul-1-neg47.2%
distribute-rgt-neg-out47.2%
Simplified47.2%
Taylor expanded in v around 0 47.2%
neg-mul-147.2%
sub-neg47.2%
Simplified47.2%
Final simplification47.2%
(FPCore (e v) :precision binary64 (* e (/ v (+ 1.0 e))))
double code(double e, double v) {
return e * (v / (1.0 + e));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (v / (1.0d0 + e))
end function
public static double code(double e, double v) {
return e * (v / (1.0 + e));
}
def code(e, v): return e * (v / (1.0 + e))
function code(e, v) return Float64(e * Float64(v / Float64(1.0 + e))) end
function tmp = code(e, v) tmp = e * (v / (1.0 + e)); end
code[e_, v_] := N[(e * N[(v / N[(1.0 + e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{v}{1 + e}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-*l/99.8%
+-commutative99.8%
cos-neg99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 47.6%
+-commutative47.6%
Simplified47.6%
Final simplification47.6%
(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%
*-commutative99.8%
cos-neg99.8%
associate-*l/99.8%
+-commutative99.8%
cos-neg99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 47.6%
+-commutative47.6%
Simplified47.6%
Taylor expanded in e around 0 47.0%
Final simplification47.0%
(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%
*-commutative99.8%
cos-neg99.8%
associate-*l/99.8%
+-commutative99.8%
cos-neg99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 47.6%
+-commutative47.6%
Simplified47.6%
Taylor expanded in e around inf 4.3%
Final simplification4.3%
herbie shell --seed 2024021
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))