
(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 10 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%
(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 99.8%
associate-/l*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
fma-undefine99.8%
Applied egg-rr99.8%
Final simplification99.8%
(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 98.5%
Final simplification98.5%
(FPCore (e v) :precision binary64 (/ e (/ (+ e 1.0) (sin v))))
double code(double e, double v) {
return e / ((e + 1.0) / sin(v));
}
real(8) function code(e, v)
real(8), intent (in) :: e
real(8), intent (in) :: v
code = e / ((e + 1.0d0) / sin(v))
end function
public static double code(double e, double v) {
return e / ((e + 1.0) / Math.sin(v));
}
def code(e, v): return e / ((e + 1.0) / math.sin(v))
function code(e, v) return Float64(e / Float64(Float64(e + 1.0) / sin(v))) end
function tmp = code(e, v) tmp = e / ((e + 1.0) / sin(v)); end
code[e_, v_] := N[(e / N[(N[(e + 1.0), $MachinePrecision] / N[Sin[v], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{e}{\frac{e + 1}{\sin v}}
\end{array}
Initial program 99.8%
add-log-exp75.0%
Applied egg-rr75.0%
Taylor expanded in v around 0 73.7%
clear-num73.7%
inv-pow73.7%
+-commutative73.7%
rem-log-exp97.0%
*-commutative97.0%
Applied egg-rr97.0%
Taylor expanded in v around inf 98.5%
associate-/l*98.5%
*-lft-identity98.5%
+-commutative98.5%
associate-*l/98.5%
associate-/r/98.4%
associate-*r/98.3%
*-rgt-identity98.3%
Simplified98.3%
(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%
associate-/l*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in e around 0 97.4%
(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%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 49.0%
Final simplification49.0%
(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 99.8%
associate-/l*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 49.0%
associate-/l*49.0%
+-commutative49.0%
Simplified49.0%
(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 99.8%
associate-/l*99.8%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 49.0%
associate-/l*49.0%
+-commutative49.0%
Simplified49.0%
Taylor expanded in e around 0 48.2%
*-lft-identity48.2%
neg-mul-148.2%
distribute-lft-neg-in48.2%
distribute-rgt-in48.2%
sub-neg48.2%
Simplified48.2%
(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%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 49.0%
associate-/l*49.0%
+-commutative49.0%
Simplified49.0%
Taylor expanded in e around 0 47.8%
(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%
remove-double-neg99.8%
cos-neg99.8%
distribute-frac-neg99.8%
sin-neg99.8%
distribute-neg-frac99.8%
sin-neg99.8%
remove-double-neg99.8%
+-commutative99.8%
cos-neg99.8%
fma-define99.8%
Simplified99.8%
Taylor expanded in v around 0 49.0%
associate-/l*49.0%
+-commutative49.0%
Simplified49.0%
Taylor expanded in e around inf 4.5%
herbie shell --seed 2024151
(FPCore (e v)
:name "Trigonometry A"
:precision binary64
:pre (and (<= 0.0 e) (<= e 1.0))
(/ (* e (sin v)) (+ 1.0 (* e (cos v)))))