
(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(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 99.7%
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 (* (sin v) (/ 1.0 (+ 1.0 (/ 1.0 e)))))
double code(double e, double v) {
return sin(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 = sin(v) * (1.0d0 / (1.0d0 + (1.0d0 / e)))
end function
public static double code(double e, double v) {
return Math.sin(v) * (1.0 / (1.0 + (1.0 / e)));
}
def code(e, v): return math.sin(v) * (1.0 / (1.0 + (1.0 / e)))
function code(e, v) return Float64(sin(v) * Float64(1.0 / Float64(1.0 + Float64(1.0 / e)))) end
function tmp = code(e, v) tmp = sin(v) * (1.0 / (1.0 + (1.0 / e))); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * N[(1.0 / N[(1.0 + N[(1.0 / e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \frac{1}{1 + \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%
Taylor expanded in v around 0 98.7%
clear-num97.1%
associate-/r/98.7%
Applied egg-rr98.7%
Final simplification98.7%
(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 99.7%
*-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%
Taylor expanded in v around 0 98.7%
Final simplification98.7%
(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 99.7%
*-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%
Taylor expanded in e around 0 97.4%
Final simplification97.4%
(FPCore (e v)
:precision binary64
(*
e
(/
1.0
(+
(* v (+ (* e -0.5) (* -0.16666666666666666 (- -1.0 e))))
(+ (/ 1.0 v) (/ e v))))))
double code(double e, double v) {
return e * (1.0 / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((1.0 / v) + (e / v))));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (1.0d0 / ((v * ((e * (-0.5d0)) + ((-0.16666666666666666d0) * ((-1.0d0) - e)))) + ((1.0d0 / v) + (e / v))))
end function
public static double code(double e, double v) {
return e * (1.0 / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((1.0 / v) + (e / v))));
}
def code(e, v): return e * (1.0 / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((1.0 / v) + (e / v))))
function code(e, v) return Float64(e * Float64(1.0 / Float64(Float64(v * Float64(Float64(e * -0.5) + Float64(-0.16666666666666666 * Float64(-1.0 - e)))) + Float64(Float64(1.0 / v) + Float64(e / v))))) end
function tmp = code(e, v) tmp = e * (1.0 / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((1.0 / v) + (e / v)))); end
code[e_, v_] := N[(e * N[(1.0 / N[(N[(v * N[(N[(e * -0.5), $MachinePrecision] + N[(-0.16666666666666666 * N[(-1.0 - e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(1.0 / v), $MachinePrecision] + N[(e / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{1}{v \cdot \left(e \cdot -0.5 + -0.16666666666666666 \cdot \left(-1 - e\right)\right) + \left(\frac{1}{v} + \frac{e}{v}\right)}
\end{array}
Initial program 99.7%
associate-/l*99.6%
div-inv99.6%
+-commutative99.6%
fma-def99.6%
Applied egg-rr99.6%
Taylor expanded in v around 0 52.5%
Final simplification52.5%
(FPCore (e v) :precision binary64 (/ e (+ (* v (+ (* e -0.5) (* -0.16666666666666666 (- -1.0 e)))) (+ (/ 1.0 v) (/ e v)))))
double code(double e, double v) {
return e / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((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)) + ((-0.16666666666666666d0) * ((-1.0d0) - e)))) + ((1.0d0 / v) + (e / v)))
end function
public static double code(double e, double v) {
return e / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((1.0 / v) + (e / v)));
}
def code(e, v): return e / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((1.0 / v) + (e / v)))
function code(e, v) return Float64(e / Float64(Float64(v * Float64(Float64(e * -0.5) + Float64(-0.16666666666666666 * Float64(-1.0 - e)))) + Float64(Float64(1.0 / v) + Float64(e / v)))) end
function tmp = code(e, v) tmp = e / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((1.0 / v) + (e / v))); end
code[e_, v_] := N[(e / N[(N[(v * N[(N[(e * -0.5), $MachinePrecision] + N[(-0.16666666666666666 * N[(-1.0 - e), $MachinePrecision]), $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 + -0.16666666666666666 \cdot \left(-1 - e\right)\right) + \left(\frac{1}{v} + \frac{e}{v}\right)}
\end{array}
Initial program 99.7%
associate-/l*99.6%
div-inv99.6%
+-commutative99.6%
fma-def99.6%
Applied egg-rr99.6%
un-div-inv99.6%
Applied egg-rr99.6%
Taylor expanded in v around 0 52.4%
Final simplification52.4%
(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 99.7%
associate-/l*99.6%
div-inv99.6%
+-commutative99.6%
fma-def99.6%
Applied egg-rr99.6%
Taylor expanded in v around 0 51.5%
+-commutative51.5%
Simplified51.5%
Taylor expanded in e around 0 50.9%
associate-*r*50.9%
neg-mul-150.9%
distribute-rgt1-in50.9%
+-commutative50.9%
sub-neg50.9%
Simplified50.9%
Final simplification50.9%
(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(e * Float64(v / Float64(e + 1.0))) end
function tmp = code(e, v) tmp = e * (v / (e + 1.0)); end
code[e_, v_] := N[(e * N[(v / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{v}{e + 1}
\end{array}
Initial program 99.7%
Taylor expanded in v around 0 51.5%
associate-/l*51.4%
Simplified51.4%
clear-num50.0%
associate-/r/51.5%
clear-num51.5%
Applied egg-rr51.5%
Final simplification51.5%
(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 99.7%
Taylor expanded in v around 0 51.5%
associate-/l*51.4%
Simplified51.4%
Taylor expanded in e around 0 50.2%
*-commutative50.2%
Simplified50.2%
Final simplification50.2%
(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%
Taylor expanded in v around 0 51.5%
associate-/l*51.4%
Simplified51.4%
Taylor expanded in e around inf 4.7%
Final simplification4.7%
herbie shell --seed 2024024
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))