
(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 13 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) (/ 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(sin(v) * Float64(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[Sin[v], $MachinePrecision] * N[(e / N[(1.0 + N[(e * N[Cos[v], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \frac{e}{1 + e \cdot \cos v}
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
fma-udef99.8%
Applied egg-rr99.8%
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%
associate-/l*99.6%
+-commutative99.6%
fma-def99.6%
Simplified99.6%
Taylor expanded in e around 0 99.6%
Final simplification99.6%
(FPCore (e v) :precision binary64 (* (sin v) (- e (* e e))))
double code(double e, double v) {
return sin(v) * (e - (e * e));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) * (e - (e * e))
end function
public static double code(double e, double v) {
return Math.sin(v) * (e - (e * e));
}
def code(e, v): return math.sin(v) * (e - (e * e))
function code(e, v) return Float64(sin(v) * Float64(e - Float64(e * e))) end
function tmp = code(e, v) tmp = sin(v) * (e - (e * e)); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * N[(e - N[(e * e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \left(e - e \cdot e\right)
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 97.9%
+-commutative97.9%
Simplified97.9%
Taylor expanded in e around 0 95.9%
mul-1-neg95.9%
unsub-neg95.9%
unpow295.9%
Simplified95.9%
Final simplification95.9%
(FPCore (e v) :precision binary64 (* (sin v) (/ e (+ e 1.0))))
double code(double e, double v) {
return sin(v) * (e / (e + 1.0));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = sin(v) * (e / (e + 1.0d0))
end function
public static double code(double e, double v) {
return Math.sin(v) * (e / (e + 1.0));
}
def code(e, v): return math.sin(v) * (e / (e + 1.0))
function code(e, v) return Float64(sin(v) * Float64(e / Float64(e + 1.0))) end
function tmp = code(e, v) tmp = sin(v) * (e / (e + 1.0)); end
code[e_, v_] := N[(N[Sin[v], $MachinePrecision] * N[(e / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sin v \cdot \frac{e}{e + 1}
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 97.9%
+-commutative97.9%
Simplified97.9%
Final simplification97.9%
(FPCore (e v) :precision binary64 (if (<= e 1.5e-7) (* e (sin v)) (/ e (+ (* e (* v -0.3333333333333333)) (+ (/ 1.0 v) (/ e v))))))
double code(double e, double v) {
double tmp;
if (e <= 1.5e-7) {
tmp = e * sin(v);
} else {
tmp = e / ((e * (v * -0.3333333333333333)) + ((1.0 / v) + (e / v)));
}
return tmp;
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
real(8) :: tmp
if (e <= 1.5d-7) then
tmp = e * sin(v)
else
tmp = e / ((e * (v * (-0.3333333333333333d0))) + ((1.0d0 / v) + (e / v)))
end if
code = tmp
end function
public static double code(double e, double v) {
double tmp;
if (e <= 1.5e-7) {
tmp = e * Math.sin(v);
} else {
tmp = e / ((e * (v * -0.3333333333333333)) + ((1.0 / v) + (e / v)));
}
return tmp;
}
def code(e, v): tmp = 0 if e <= 1.5e-7: tmp = e * math.sin(v) else: tmp = e / ((e * (v * -0.3333333333333333)) + ((1.0 / v) + (e / v))) return tmp
function code(e, v) tmp = 0.0 if (e <= 1.5e-7) tmp = Float64(e * sin(v)); else tmp = Float64(e / Float64(Float64(e * Float64(v * -0.3333333333333333)) + Float64(Float64(1.0 / v) + Float64(e / v)))); end return tmp end
function tmp_2 = code(e, v) tmp = 0.0; if (e <= 1.5e-7) tmp = e * sin(v); else tmp = e / ((e * (v * -0.3333333333333333)) + ((1.0 / v) + (e / v))); end tmp_2 = tmp; end
code[e_, v_] := If[LessEqual[e, 1.5e-7], N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision], N[(e / N[(N[(e * N[(v * -0.3333333333333333), $MachinePrecision]), $MachinePrecision] + N[(N[(1.0 / v), $MachinePrecision] + N[(e / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;e \leq 1.5 \cdot 10^{-7}:\\
\;\;\;\;e \cdot \sin v\\
\mathbf{else}:\\
\;\;\;\;\frac{e}{e \cdot \left(v \cdot -0.3333333333333333\right) + \left(\frac{1}{v} + \frac{e}{v}\right)}\\
\end{array}
\end{array}
if e < 1.4999999999999999e-7Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in e around 0 98.7%
if 1.4999999999999999e-7 < e Initial program 99.2%
associate-*l/99.1%
+-commutative99.1%
fma-def99.0%
Simplified99.0%
Taylor expanded in v around inf 99.2%
associate-/l*99.2%
+-commutative99.2%
fma-def99.1%
Simplified99.1%
Taylor expanded in v around 0 67.1%
Taylor expanded in e around inf 67.6%
*-commutative67.6%
associate-*l*67.6%
Simplified67.6%
Final simplification96.9%
(FPCore (e v) :precision binary64 (/ e (+ (+ (/ 1.0 v) (/ e v)) (* v (+ 0.16666666666666666 (* e -0.3333333333333333))))))
double code(double e, double v) {
return e / (((1.0 / v) + (e / v)) + (v * (0.16666666666666666 + (e * -0.3333333333333333))));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e / (((1.0d0 / v) + (e / v)) + (v * (0.16666666666666666d0 + (e * (-0.3333333333333333d0)))))
end function
public static double code(double e, double v) {
return e / (((1.0 / v) + (e / v)) + (v * (0.16666666666666666 + (e * -0.3333333333333333))));
}
def code(e, v): return e / (((1.0 / v) + (e / v)) + (v * (0.16666666666666666 + (e * -0.3333333333333333))))
function code(e, v) return Float64(e / Float64(Float64(Float64(1.0 / v) + Float64(e / v)) + Float64(v * Float64(0.16666666666666666 + Float64(e * -0.3333333333333333))))) end
function tmp = code(e, v) tmp = e / (((1.0 / v) + (e / v)) + (v * (0.16666666666666666 + (e * -0.3333333333333333)))); end
code[e_, v_] := N[(e / N[(N[(N[(1.0 / v), $MachinePrecision] + N[(e / v), $MachinePrecision]), $MachinePrecision] + N[(v * N[(0.16666666666666666 + N[(e * -0.3333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{\left(\frac{1}{v} + \frac{e}{v}\right) + v \cdot \left(0.16666666666666666 + e \cdot -0.3333333333333333\right)}
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around inf 99.8%
associate-/l*99.7%
+-commutative99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around 0 50.2%
Taylor expanded in e around 0 50.2%
*-commutative50.2%
Simplified50.2%
Final simplification50.2%
(FPCore (e v) :precision binary64 (/ e (+ (* e (* v -0.3333333333333333)) (+ (/ 1.0 v) (/ e v)))))
double code(double e, double v) {
return e / ((e * (v * -0.3333333333333333)) + ((1.0 / v) + (e / v)));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e / ((e * (v * (-0.3333333333333333d0))) + ((1.0d0 / v) + (e / v)))
end function
public static double code(double e, double v) {
return e / ((e * (v * -0.3333333333333333)) + ((1.0 / v) + (e / v)));
}
def code(e, v): return e / ((e * (v * -0.3333333333333333)) + ((1.0 / v) + (e / v)))
function code(e, v) return Float64(e / Float64(Float64(e * Float64(v * -0.3333333333333333)) + Float64(Float64(1.0 / v) + Float64(e / v)))) end
function tmp = code(e, v) tmp = e / ((e * (v * -0.3333333333333333)) + ((1.0 / v) + (e / v))); end
code[e_, v_] := N[(e / N[(N[(e * N[(v * -0.3333333333333333), $MachinePrecision]), $MachinePrecision] + N[(N[(1.0 / v), $MachinePrecision] + N[(e / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{e \cdot \left(v \cdot -0.3333333333333333\right) + \left(\frac{1}{v} + \frac{e}{v}\right)}
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around inf 99.8%
associate-/l*99.7%
+-commutative99.7%
fma-def99.7%
Simplified99.7%
Taylor expanded in v around 0 50.2%
Taylor expanded in e around inf 50.0%
*-commutative50.0%
associate-*l*50.0%
Simplified50.0%
Final simplification50.0%
(FPCore (e v) :precision binary64 (* v (- e (* e e))))
double code(double e, double v) {
return v * (e - (e * e));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = v * (e - (e * e))
end function
public static double code(double e, double v) {
return v * (e - (e * e));
}
def code(e, v): return v * (e - (e * e))
function code(e, v) return Float64(v * Float64(e - Float64(e * e))) end
function tmp = code(e, v) tmp = v * (e - (e * e)); end
code[e_, v_] := N[(v * N[(e - N[(e * e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
v \cdot \left(e - e \cdot e\right)
\end{array}
Initial program 99.8%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 48.9%
associate-/l*48.9%
+-commutative48.9%
Simplified48.9%
Taylor expanded in e around 0 47.0%
+-commutative47.0%
associate-*r*47.0%
distribute-rgt-out47.0%
mul-1-neg47.0%
unsub-neg47.0%
unpow247.0%
Simplified47.0%
Final simplification47.0%
(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%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 48.9%
associate-/l*48.9%
+-commutative48.9%
Simplified48.9%
Final simplification48.9%
(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(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%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 48.9%
Final simplification48.9%
(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%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 48.9%
associate-/l*48.9%
+-commutative48.9%
Simplified48.9%
Taylor expanded in e around 0 46.0%
Final simplification46.0%
(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%
associate-*l/99.8%
+-commutative99.8%
fma-def99.8%
Simplified99.8%
Taylor expanded in v around 0 48.9%
associate-/l*48.9%
+-commutative48.9%
Simplified48.9%
Taylor expanded in e around inf 4.6%
Final simplification4.6%
herbie shell --seed 2023272
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))