
(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 (/ (* 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) (/ (+ 1.0 (* e (cos v))) e)))
double code(double e, double v) {
return sin(v) / ((1.0 + (e * cos(v))) / e);
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) / ((1.0d0 + (e * cos(v))) / e)
end function
public static double code(double e, double v) {
return Math.sin(v) / ((1.0 + (e * Math.cos(v))) / e);
}
def code(e, v): return math.sin(v) / ((1.0 + (e * math.cos(v))) / e)
function code(e, v) return Float64(sin(v) / Float64(Float64(1.0 + Float64(e * cos(v))) / e)) end
function tmp = code(e, v) tmp = sin(v) / ((1.0 + (e * cos(v))) / e); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] / N[(N[(1.0 + N[(e * N[Cos[v], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / e), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sin v}{\frac{1 + e \cdot \cos v}{e}}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.3%
+-commutative99.3%
cos-neg99.3%
fma-def99.3%
Simplified99.3%
Taylor expanded in v around inf 99.3%
Final simplification99.3%
(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*99.3%
+-commutative99.3%
cos-neg99.3%
metadata-eval99.3%
sub-neg99.3%
div-sub99.3%
*-commutative99.3%
associate-/l*99.3%
*-inverses99.3%
/-rgt-identity99.3%
metadata-eval99.3%
associate-/r*99.3%
neg-mul-199.3%
unsub-neg99.3%
neg-mul-199.3%
associate-/r*99.3%
metadata-eval99.3%
distribute-neg-frac99.3%
metadata-eval99.3%
Simplified99.3%
Final simplification99.3%
(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 99.1%
Final simplification99.1%
(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*99.3%
+-commutative99.3%
cos-neg99.3%
metadata-eval99.3%
sub-neg99.3%
div-sub99.3%
*-commutative99.3%
associate-/l*99.3%
*-inverses99.3%
/-rgt-identity99.3%
metadata-eval99.3%
associate-/r*99.3%
neg-mul-199.3%
unsub-neg99.3%
neg-mul-199.3%
associate-/r*99.3%
metadata-eval99.3%
distribute-neg-frac99.3%
metadata-eval99.3%
Simplified99.3%
Taylor expanded in e around 0 98.8%
Final simplification98.8%
(FPCore (e v) :precision binary64 (/ 1.0 (- (+ (/ 1.0 v) (/ 1.0 (* e v))) (* v (+ 0.5 (* -0.16666666666666666 (+ 1.0 (/ 1.0 e))))))))
double code(double e, double v) {
return 1.0 / (((1.0 / v) + (1.0 / (e * v))) - (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 / (e * v))) - (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 / (e * v))) - (v * (0.5 + (-0.16666666666666666 * (1.0 + (1.0 / e))))));
}
def code(e, v): return 1.0 / (((1.0 / v) + (1.0 / (e * v))) - (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(e * v))) - 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 / (e * v))) - (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[(e * v), $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}{e \cdot v}\right) - v \cdot \left(0.5 + -0.16666666666666666 \cdot \left(1 + \frac{1}{e}\right)\right)}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.3%
+-commutative99.3%
cos-neg99.3%
metadata-eval99.3%
sub-neg99.3%
div-sub99.3%
*-commutative99.3%
associate-/l*99.3%
*-inverses99.3%
/-rgt-identity99.3%
metadata-eval99.3%
associate-/r*99.3%
neg-mul-199.3%
unsub-neg99.3%
neg-mul-199.3%
associate-/r*99.3%
metadata-eval99.3%
distribute-neg-frac99.3%
metadata-eval99.3%
Simplified99.3%
add-cbrt-cube62.7%
pow362.7%
Applied egg-rr62.7%
rem-cbrt-cube99.3%
clear-num98.5%
inv-pow98.5%
+-commutative98.5%
Applied egg-rr98.5%
unpow-198.5%
Simplified98.5%
Taylor expanded in v around 0 53.6%
Final simplification53.6%
(FPCore (e v) :precision binary64 (* v (/ 1.0 (+ 1.0 (/ 1.0 e)))))
double code(double e, double v) {
return v * (1.0 / (1.0 + (1.0 / e)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = v * (1.0d0 / (1.0d0 + (1.0d0 / e)))
end function
public static double code(double e, double v) {
return v * (1.0 / (1.0 + (1.0 / e)));
}
def code(e, v): return v * (1.0 / (1.0 + (1.0 / e)))
function code(e, v) return Float64(v * Float64(1.0 / Float64(1.0 + Float64(1.0 / e)))) end
function tmp = code(e, v) tmp = v * (1.0 / (1.0 + (1.0 / e))); end
code[e_, v_] := N[(v * N[(1.0 / N[(1.0 + N[(1.0 / e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
v \cdot \frac{1}{1 + \frac{1}{e}}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.3%
+-commutative99.3%
cos-neg99.3%
metadata-eval99.3%
sub-neg99.3%
div-sub99.3%
*-commutative99.3%
associate-/l*99.3%
*-inverses99.3%
/-rgt-identity99.3%
metadata-eval99.3%
associate-/r*99.3%
neg-mul-199.3%
unsub-neg99.3%
neg-mul-199.3%
associate-/r*99.3%
metadata-eval99.3%
distribute-neg-frac99.3%
metadata-eval99.3%
Simplified99.3%
Taylor expanded in v around 0 53.3%
clear-num52.5%
associate-/r/53.3%
Applied egg-rr53.3%
Final simplification53.3%
(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%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.3%
+-commutative99.3%
cos-neg99.3%
fma-def99.3%
Simplified99.3%
associate-/r/99.8%
add-sqr-sqrt99.4%
associate-*r*99.4%
Applied egg-rr99.4%
Taylor expanded in v around 0 53.3%
associate-/l*53.2%
+-commutative53.2%
Simplified53.2%
Final simplification53.2%
(FPCore (e v) :precision binary64 (/ v (+ 1.0 (/ 1.0 e))))
double code(double e, double v) {
return v / (1.0 + (1.0 / e));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = v / (1.0d0 + (1.0d0 / e))
end function
public static double code(double e, double v) {
return v / (1.0 + (1.0 / e));
}
def code(e, v): return v / (1.0 + (1.0 / e))
function code(e, v) return Float64(v / Float64(1.0 + Float64(1.0 / e))) end
function tmp = code(e, v) tmp = v / (1.0 + (1.0 / e)); end
code[e_, v_] := N[(v / N[(1.0 + N[(1.0 / e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{v}{1 + \frac{1}{e}}
\end{array}
Initial program 99.8%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.3%
+-commutative99.3%
cos-neg99.3%
metadata-eval99.3%
sub-neg99.3%
div-sub99.3%
*-commutative99.3%
associate-/l*99.3%
*-inverses99.3%
/-rgt-identity99.3%
metadata-eval99.3%
associate-/r*99.3%
neg-mul-199.3%
unsub-neg99.3%
neg-mul-199.3%
associate-/r*99.3%
metadata-eval99.3%
distribute-neg-frac99.3%
metadata-eval99.3%
Simplified99.3%
Taylor expanded in v around 0 53.3%
Final simplification53.3%
(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%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.3%
+-commutative99.3%
cos-neg99.3%
fma-def99.3%
Simplified99.3%
Taylor expanded in v around 0 53.3%
*-commutative53.3%
Simplified53.3%
Final simplification53.3%
(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%
*-commutative99.8%
cos-neg99.8%
associate-/l*99.3%
+-commutative99.3%
cos-neg99.3%
metadata-eval99.3%
sub-neg99.3%
div-sub99.3%
*-commutative99.3%
associate-/l*99.3%
*-inverses99.3%
/-rgt-identity99.3%
metadata-eval99.3%
associate-/r*99.3%
neg-mul-199.3%
unsub-neg99.3%
neg-mul-199.3%
associate-/r*99.3%
metadata-eval99.3%
distribute-neg-frac99.3%
metadata-eval99.3%
Simplified99.3%
Taylor expanded in v around 0 53.3%
Taylor expanded in e around 0 53.0%
Final simplification53.0%
(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*99.3%
+-commutative99.3%
cos-neg99.3%
metadata-eval99.3%
sub-neg99.3%
div-sub99.3%
*-commutative99.3%
associate-/l*99.3%
*-inverses99.3%
/-rgt-identity99.3%
metadata-eval99.3%
associate-/r*99.3%
neg-mul-199.3%
unsub-neg99.3%
neg-mul-199.3%
associate-/r*99.3%
metadata-eval99.3%
distribute-neg-frac99.3%
metadata-eval99.3%
Simplified99.3%
Taylor expanded in v around 0 53.3%
Taylor expanded in e around inf 4.7%
Final simplification4.7%
herbie shell --seed 2024017
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))