
(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 12 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 (/ 1.0 (fma e (cos v) 1.0)))))
double code(double e, double v) {
return sin(v) * (e * (1.0 / fma(e, cos(v), 1.0)));
}
function code(e, v) return Float64(sin(v) * Float64(e * Float64(1.0 / fma(e, cos(v), 1.0)))) end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * N[(e * N[(1.0 / N[(e * N[Cos[v], $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \left(e \cdot \frac{1}{\mathsf{fma}\left(e, \cos v, 1\right)}\right)
\end{array}
Initial program 99.7%
*-commutative99.7%
+-commutative99.7%
fma-udef99.7%
associate-*l/99.7%
div-inv99.7%
fma-udef99.7%
+-commutative99.7%
associate-*l*99.7%
+-commutative99.7%
fma-udef99.7%
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(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 99.7%
*-commutative99.7%
cos-neg99.7%
associate-*l/99.7%
+-commutative99.7%
cos-neg99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around inf 99.7%
Final simplification99.7%
(FPCore (e v) :precision binary64 (/ (* (sin v) e) (+ 1.0 (* e (cos v)))))
double code(double e, double v) {
return (sin(v) * e) / (1.0 + (e * cos(v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = (sin(v) * e) / (1.0d0 + (e * cos(v)))
end function
public static double code(double e, double v) {
return (Math.sin(v) * e) / (1.0 + (e * Math.cos(v)));
}
def code(e, v): return (math.sin(v) * e) / (1.0 + (e * math.cos(v)))
function code(e, v) return Float64(Float64(sin(v) * e) / Float64(1.0 + Float64(e * cos(v)))) end
function tmp = code(e, v) tmp = (sin(v) * e) / (1.0 + (e * cos(v))); end
code[e_, v_] := N[(N[(N[Sin[v], $MachinePrecision] * e), $MachinePrecision] / N[(1.0 + N[(e * N[Cos[v], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sin v \cdot e}{1 + e \cdot \cos v}
\end{array}
Initial program 99.7%
Final simplification99.7%
(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 99.7%
*-commutative99.7%
cos-neg99.7%
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))))
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(e * Float64(sin(v) / Float64(1.0 + e))) end
function tmp = code(e, v) tmp = e * (sin(v) / (1.0 + e)); end
code[e_, v_] := N[(e * N[(N[Sin[v], $MachinePrecision] / N[(1.0 + e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{\sin v}{1 + e}
\end{array}
Initial program 99.7%
*-commutative99.7%
cos-neg99.7%
associate-*l/99.7%
+-commutative99.7%
cos-neg99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around inf 99.7%
Taylor expanded in v around 0 97.9%
Final simplification97.9%
(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 99.7%
Taylor expanded in v around 0 98.0%
Final simplification98.0%
(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 99.7%
*-commutative99.7%
cos-neg99.7%
associate-*l/99.7%
+-commutative99.7%
cos-neg99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in e around 0 96.9%
Final simplification96.9%
(FPCore (e v) :precision binary64 (/ 1.0 (- (+ (/ 1.0 v) (/ 1.0 (* v e))) (* v (+ 0.5 (* -0.16666666666666666 (+ 1.0 (/ 1.0 e))))))))
double code(double e, double v) {
return 1.0 / (((1.0 / v) + (1.0 / (v * e))) - (v * (0.5 + (-0.16666666666666666 * (1.0 + (1.0 / e))))));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = 1.0d0 / (((1.0d0 / v) + (1.0d0 / (v * e))) - (v * (0.5d0 + ((-0.16666666666666666d0) * (1.0d0 + (1.0d0 / e))))))
end function
public static double code(double e, double v) {
return 1.0 / (((1.0 / v) + (1.0 / (v * e))) - (v * (0.5 + (-0.16666666666666666 * (1.0 + (1.0 / e))))));
}
def code(e, v): return 1.0 / (((1.0 / v) + (1.0 / (v * e))) - (v * (0.5 + (-0.16666666666666666 * (1.0 + (1.0 / e))))))
function code(e, v) return Float64(1.0 / Float64(Float64(Float64(1.0 / v) + Float64(1.0 / Float64(v * e))) - Float64(v * Float64(0.5 + Float64(-0.16666666666666666 * Float64(1.0 + Float64(1.0 / e))))))) end
function tmp = code(e, v) tmp = 1.0 / (((1.0 / v) + (1.0 / (v * e))) - (v * (0.5 + (-0.16666666666666666 * (1.0 + (1.0 / e)))))); end
code[e_, v_] := N[(1.0 / N[(N[(N[(1.0 / v), $MachinePrecision] + N[(1.0 / N[(v * e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(v * N[(0.5 + N[(-0.16666666666666666 * N[(1.0 + N[(1.0 / e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\left(\frac{1}{v} + \frac{1}{v \cdot e}\right) - v \cdot \left(0.5 + -0.16666666666666666 \cdot \left(1 + \frac{1}{e}\right)\right)}
\end{array}
Initial program 99.7%
*-commutative99.7%
cos-neg99.7%
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%
add-sqr-sqrt99.2%
pow299.2%
+-commutative99.2%
Applied egg-rr99.2%
clear-num98.6%
inv-pow98.6%
unpow298.6%
add-sqr-sqrt98.9%
Applied egg-rr98.9%
unpow-198.9%
Simplified98.9%
Taylor expanded in v around 0 48.8%
Final simplification48.8%
(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(e / Float64(Float64(1.0 + e) / v)) end
function tmp = code(e, v) tmp = e / ((1.0 + e) / v); end
code[e_, v_] := N[(e / N[(N[(1.0 + e), $MachinePrecision] / v), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{\frac{1 + e}{v}}
\end{array}
Initial program 99.7%
*-commutative99.7%
cos-neg99.7%
associate-*l/99.7%
+-commutative99.7%
cos-neg99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around 0 48.2%
associate-/l*48.2%
+-commutative48.2%
Simplified48.2%
Final simplification48.2%
(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 99.7%
*-commutative99.7%
cos-neg99.7%
associate-*l/99.7%
+-commutative99.7%
cos-neg99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around 0 48.2%
Final simplification48.2%
(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 99.7%
*-commutative99.7%
cos-neg99.7%
associate-*l/99.7%
+-commutative99.7%
cos-neg99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around 0 48.2%
associate-/l*48.2%
+-commutative48.2%
Simplified48.2%
Taylor expanded in e around 0 47.2%
Final simplification47.2%
(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 99.7%
*-commutative99.7%
cos-neg99.7%
associate-*l/99.7%
+-commutative99.7%
cos-neg99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around 0 48.2%
associate-/l*48.2%
+-commutative48.2%
Simplified48.2%
Taylor expanded in e around inf 4.4%
Final simplification4.4%
herbie shell --seed 2024023
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))