
(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 (* (cos v) e)))))
double code(double e, double v) {
return e * (sin(v) / (1.0 + (cos(v) * e)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (sin(v) / (1.0d0 + (cos(v) * e)))
end function
public static double code(double e, double v) {
return e * (Math.sin(v) / (1.0 + (Math.cos(v) * e)));
}
def code(e, v): return e * (math.sin(v) / (1.0 + (math.cos(v) * e)))
function code(e, v) return Float64(e * Float64(sin(v) / Float64(1.0 + Float64(cos(v) * e)))) end
function tmp = code(e, v) tmp = e * (sin(v) / (1.0 + (cos(v) * e))); end
code[e_, v_] := N[(e * N[(N[Sin[v], $MachinePrecision] / N[(1.0 + N[(N[Cos[v], $MachinePrecision] * e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{\sin v}{1 + \cos v \cdot e}
\end{array}
Initial program 99.7%
associate-/l*99.6%
Simplified99.6%
clear-num98.8%
associate-/r/99.6%
clear-num99.8%
+-commutative99.8%
fma-udef99.8%
Applied egg-rr99.8%
Taylor expanded in v around inf 99.8%
Final simplification99.8%
(FPCore (e v) :precision binary64 (* (sin v) (/ e (+ 1.0 (* (cos v) e)))))
double code(double e, double v) {
return sin(v) * (e / (1.0 + (cos(v) * e)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) * (e / (1.0d0 + (cos(v) * e)))
end function
public static double code(double e, double v) {
return Math.sin(v) * (e / (1.0 + (Math.cos(v) * e)));
}
def code(e, v): return math.sin(v) * (e / (1.0 + (math.cos(v) * e)))
function code(e, v) return Float64(sin(v) * Float64(e / Float64(1.0 + Float64(cos(v) * e)))) end
function tmp = code(e, v) tmp = sin(v) * (e / (1.0 + (cos(v) * e))); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * N[(e / N[(1.0 + N[(N[Cos[v], $MachinePrecision] * e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \frac{e}{1 + \cos v \cdot e}
\end{array}
Initial program 99.7%
associate-*l/99.7%
+-commutative99.7%
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))))
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(sin(v) * Float64(e / Float64(1.0 + e))) end
function tmp = code(e, v) tmp = sin(v) * (e / (1.0 + e)); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * N[(e / N[(1.0 + e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \frac{e}{1 + e}
\end{array}
Initial program 99.7%
associate-*l/99.7%
+-commutative99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around 0 98.0%
+-commutative98.0%
Simplified98.0%
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%
associate-*l/99.7%
+-commutative99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in e around 0 96.9%
Final simplification96.9%
(FPCore (e v) :precision binary64 (/ e (+ (* v (+ (* e -0.5) (* -0.16666666666666666 (- -1.0 e)))) (+ (/ e v) (/ 1.0 v)))))
double code(double e, double v) {
return e / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((e / v) + (1.0 / 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)))) + ((e / v) + (1.0d0 / v)))
end function
public static double code(double e, double v) {
return e / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((e / v) + (1.0 / v)));
}
def code(e, v): return e / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((e / v) + (1.0 / 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(e / v) + Float64(1.0 / v)))) end
function tmp = code(e, v) tmp = e / ((v * ((e * -0.5) + (-0.16666666666666666 * (-1.0 - e)))) + ((e / v) + (1.0 / 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[(e / v), $MachinePrecision] + N[(1.0 / 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{e}{v} + \frac{1}{v}\right)}
\end{array}
Initial program 99.7%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 51.4%
Final simplification51.4%
(FPCore (e v)
:precision binary64
(*
e
(/
-1.0
(+
(* v (- (+ -0.16666666666666666 (* e -0.16666666666666666)) (* e -0.5)))
(/ (- -1.0 e) v)))))
double code(double e, double v) {
return e * (-1.0 / ((v * ((-0.16666666666666666 + (e * -0.16666666666666666)) - (e * -0.5))) + ((-1.0 - e) / v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * ((-1.0d0) / ((v * (((-0.16666666666666666d0) + (e * (-0.16666666666666666d0))) - (e * (-0.5d0)))) + (((-1.0d0) - e) / v)))
end function
public static double code(double e, double v) {
return e * (-1.0 / ((v * ((-0.16666666666666666 + (e * -0.16666666666666666)) - (e * -0.5))) + ((-1.0 - e) / v)));
}
def code(e, v): return e * (-1.0 / ((v * ((-0.16666666666666666 + (e * -0.16666666666666666)) - (e * -0.5))) + ((-1.0 - e) / v)))
function code(e, v) return Float64(e * Float64(-1.0 / Float64(Float64(v * Float64(Float64(-0.16666666666666666 + Float64(e * -0.16666666666666666)) - Float64(e * -0.5))) + Float64(Float64(-1.0 - e) / v)))) end
function tmp = code(e, v) tmp = e * (-1.0 / ((v * ((-0.16666666666666666 + (e * -0.16666666666666666)) - (e * -0.5))) + ((-1.0 - e) / v))); end
code[e_, v_] := N[(e * N[(-1.0 / N[(N[(v * N[(N[(-0.16666666666666666 + N[(e * -0.16666666666666666), $MachinePrecision]), $MachinePrecision] - N[(e * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(-1.0 - e), $MachinePrecision] / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \frac{-1}{v \cdot \left(\left(-0.16666666666666666 + e \cdot -0.16666666666666666\right) - e \cdot -0.5\right) + \frac{-1 - e}{v}}
\end{array}
Initial program 99.7%
associate-/l*99.6%
Simplified99.6%
frac-2neg99.6%
div-inv99.6%
distribute-neg-frac99.6%
+-commutative99.6%
fma-udef99.6%
Applied egg-rr99.6%
Taylor expanded in v around 0 51.4%
distribute-lft-out51.4%
*-commutative51.4%
+-commutative51.4%
*-commutative51.4%
distribute-lft-in51.4%
metadata-eval51.4%
Simplified51.4%
Final simplification51.4%
(FPCore (e v) :precision binary64 (* e (- v (* v e))))
double code(double e, double v) {
return e * (v - (v * e));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e * (v - (v * e))
end function
public static double code(double e, double v) {
return e * (v - (v * e));
}
def code(e, v): return e * (v - (v * e))
function code(e, v) return Float64(e * Float64(v - Float64(v * e))) end
function tmp = code(e, v) tmp = e * (v - (v * e)); end
code[e_, v_] := N[(e * N[(v - N[(v * e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
e \cdot \left(v - v \cdot e\right)
\end{array}
Initial program 99.7%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 50.0%
+-commutative50.0%
Simplified50.0%
clear-num49.3%
inv-pow49.3%
associate-/l/49.4%
Applied egg-rr49.4%
unpow-149.4%
*-commutative49.4%
Simplified49.4%
associate-/r*49.3%
associate-/r/50.1%
+-commutative50.1%
Applied egg-rr50.1%
Taylor expanded in e around 0 49.5%
mul-1-neg49.5%
unsub-neg49.5%
Simplified49.5%
Final simplification49.5%
(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(v * Float64(e / Float64(1.0 + e))) end
function tmp = code(e, v) tmp = v * (e / (1.0 + e)); end
code[e_, v_] := N[(v * N[(e / N[(1.0 + e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
v \cdot \frac{e}{1 + e}
\end{array}
Initial program 99.7%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 50.0%
+-commutative50.0%
Simplified50.0%
clear-num49.3%
inv-pow49.3%
associate-/l/49.4%
Applied egg-rr49.4%
unpow-149.4%
*-commutative49.4%
Simplified49.4%
associate-/r/50.1%
*-commutative50.1%
associate-*r*50.1%
associate-/r/50.0%
clear-num50.1%
+-commutative50.1%
Applied egg-rr50.1%
Final simplification50.1%
(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%
associate-*l/99.7%
+-commutative99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around 0 50.1%
Final simplification50.1%
(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%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 50.0%
+-commutative50.0%
Simplified50.0%
Taylor expanded in e around 0 49.0%
Final simplification49.0%
(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 99.7%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in v around 0 50.0%
+-commutative50.0%
Simplified50.0%
Taylor expanded in e around inf 4.4%
Final simplification4.4%
herbie shell --seed 2023258
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))