Trigonometry A

Percentage Accurate: 99.8% → 99.8%
Time: 9.9s
Alternatives: 11
Speedup: 1.0×

Specification

?
\[0 \leq e \land e \leq 1\]
\[\begin{array}{l} \\ \frac{e \cdot \sin v}{1 + e \cdot \cos v} \end{array} \]
(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}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 11 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{e \cdot \sin v}{1 + e \cdot \cos v} \end{array} \]
(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}

Alternative 1: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{e \cdot \sin v}{\mathsf{fma}\left(\cos v, e, 1\right)} \end{array} \]
(FPCore (e v) :precision binary64 (/ (* e (sin v)) (fma (cos v) e 1.0)))
double code(double e, double v) {
	return (e * sin(v)) / fma(cos(v), e, 1.0);
}
function code(e, v)
	return Float64(Float64(e * sin(v)) / fma(cos(v), e, 1.0))
end
code[e_, v_] := N[(N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision] / N[(N[Cos[v], $MachinePrecision] * e + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{e \cdot \sin v}{\mathsf{fma}\left(\cos v, e, 1\right)}
\end{array}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-cos.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{1 + e \cdot \color{blue}{\cos v}} \]
    2. lift-*.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{1 + \color{blue}{e \cdot \cos v}} \]
    3. +-commutativeN/A

      \[\leadsto \frac{e \cdot \sin v}{\color{blue}{e \cdot \cos v + 1}} \]
    4. lift-*.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{\color{blue}{e \cdot \cos v} + 1} \]
    5. *-commutativeN/A

      \[\leadsto \frac{e \cdot \sin v}{\color{blue}{\cos v \cdot e} + 1} \]
    6. lower-fma.f6499.7

      \[\leadsto \frac{e \cdot \sin v}{\color{blue}{\mathsf{fma}\left(\cos v, e, 1\right)}} \]
  4. Applied rewrites99.7%

    \[\leadsto \frac{e \cdot \sin v}{\color{blue}{\mathsf{fma}\left(\cos v, e, 1\right)}} \]
  5. Add Preprocessing

Alternative 2: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ e \cdot \frac{\sin v}{\mathsf{fma}\left(e, \cos v, 1\right)} \end{array} \]
(FPCore (e v) :precision binary64 (* e (/ (sin v) (fma e (cos v) 1.0))))
double code(double e, double v) {
	return e * (sin(v) / fma(e, cos(v), 1.0));
}
function code(e, v)
	return Float64(e * Float64(sin(v) / fma(e, cos(v), 1.0)))
end
code[e_, v_] := N[(e * N[(N[Sin[v], $MachinePrecision] / N[(e * N[Cos[v], $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
e \cdot \frac{\sin v}{\mathsf{fma}\left(e, \cos v, 1\right)}
\end{array}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-sin.f64N/A

      \[\leadsto \frac{e \cdot \color{blue}{\sin v}}{1 + e \cdot \cos v} \]
    2. lift-cos.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{1 + e \cdot \color{blue}{\cos v}} \]
    3. lift-*.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{1 + \color{blue}{e \cdot \cos v}} \]
    4. lift-+.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{\color{blue}{1 + e \cdot \cos v}} \]
    5. associate-/l*N/A

      \[\leadsto \color{blue}{e \cdot \frac{\sin v}{1 + e \cdot \cos v}} \]
    6. *-commutativeN/A

      \[\leadsto \color{blue}{\frac{\sin v}{1 + e \cdot \cos v} \cdot e} \]
    7. lower-*.f64N/A

      \[\leadsto \color{blue}{\frac{\sin v}{1 + e \cdot \cos v} \cdot e} \]
    8. lower-/.f6499.7

      \[\leadsto \color{blue}{\frac{\sin v}{1 + e \cdot \cos v}} \cdot e \]
    9. lift-+.f64N/A

      \[\leadsto \frac{\sin v}{\color{blue}{1 + e \cdot \cos v}} \cdot e \]
    10. +-commutativeN/A

      \[\leadsto \frac{\sin v}{\color{blue}{e \cdot \cos v + 1}} \cdot e \]
    11. lift-*.f64N/A

      \[\leadsto \frac{\sin v}{\color{blue}{e \cdot \cos v} + 1} \cdot e \]
    12. lower-fma.f6499.7

      \[\leadsto \frac{\sin v}{\color{blue}{\mathsf{fma}\left(e, \cos v, 1\right)}} \cdot e \]
  4. Applied rewrites99.7%

    \[\leadsto \color{blue}{\frac{\sin v}{\mathsf{fma}\left(e, \cos v, 1\right)} \cdot e} \]
  5. Final simplification99.7%

    \[\leadsto e \cdot \frac{\sin v}{\mathsf{fma}\left(e, \cos v, 1\right)} \]
  6. Add Preprocessing

Alternative 3: 98.8% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \frac{e \cdot \sin v}{e + 1} \end{array} \]
(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}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Taylor expanded in v around 0

    \[\leadsto \frac{e \cdot \sin v}{\color{blue}{1 + e}} \]
  4. Step-by-step derivation
    1. lower-+.f6499.1

      \[\leadsto \frac{e \cdot \sin v}{\color{blue}{1 + e}} \]
  5. Applied rewrites99.1%

    \[\leadsto \frac{e \cdot \sin v}{\color{blue}{1 + e}} \]
  6. Final simplification99.1%

    \[\leadsto \frac{e \cdot \sin v}{e + 1} \]
  7. Add Preprocessing

Alternative 4: 98.2% accurate, 2.0× speedup?

\[\begin{array}{l} \\ \sin v \cdot \left(e - e \cdot e\right) \end{array} \]
(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}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Taylor expanded in e around 0

    \[\leadsto \color{blue}{e \cdot \left(\sin v + -1 \cdot \left(e \cdot \left(\cos v \cdot \sin v\right)\right)\right)} \]
  4. Step-by-step derivation
    1. +-commutativeN/A

      \[\leadsto e \cdot \color{blue}{\left(-1 \cdot \left(e \cdot \left(\cos v \cdot \sin v\right)\right) + \sin v\right)} \]
    2. distribute-lft-inN/A

      \[\leadsto \color{blue}{e \cdot \left(-1 \cdot \left(e \cdot \left(\cos v \cdot \sin v\right)\right)\right) + e \cdot \sin v} \]
    3. associate-*r*N/A

      \[\leadsto e \cdot \color{blue}{\left(\left(-1 \cdot e\right) \cdot \left(\cos v \cdot \sin v\right)\right)} + e \cdot \sin v \]
    4. associate-*r*N/A

      \[\leadsto \color{blue}{\left(e \cdot \left(-1 \cdot e\right)\right) \cdot \left(\cos v \cdot \sin v\right)} + e \cdot \sin v \]
    5. mul-1-negN/A

      \[\leadsto \left(e \cdot \color{blue}{\left(\mathsf{neg}\left(e\right)\right)}\right) \cdot \left(\cos v \cdot \sin v\right) + e \cdot \sin v \]
    6. distribute-rgt-neg-outN/A

      \[\leadsto \color{blue}{\left(\mathsf{neg}\left(e \cdot e\right)\right)} \cdot \left(\cos v \cdot \sin v\right) + e \cdot \sin v \]
    7. unpow2N/A

      \[\leadsto \left(\mathsf{neg}\left(\color{blue}{{e}^{2}}\right)\right) \cdot \left(\cos v \cdot \sin v\right) + e \cdot \sin v \]
    8. associate-*r*N/A

      \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left({e}^{2}\right)\right) \cdot \cos v\right) \cdot \sin v} + e \cdot \sin v \]
    9. distribute-lft-neg-inN/A

      \[\leadsto \color{blue}{\left(\mathsf{neg}\left({e}^{2} \cdot \cos v\right)\right)} \cdot \sin v + e \cdot \sin v \]
    10. distribute-rgt-outN/A

      \[\leadsto \color{blue}{\sin v \cdot \left(\left(\mathsf{neg}\left({e}^{2} \cdot \cos v\right)\right) + e\right)} \]
    11. lower-*.f64N/A

      \[\leadsto \color{blue}{\sin v \cdot \left(\left(\mathsf{neg}\left({e}^{2} \cdot \cos v\right)\right) + e\right)} \]
    12. lower-sin.f64N/A

      \[\leadsto \color{blue}{\sin v} \cdot \left(\left(\mathsf{neg}\left({e}^{2} \cdot \cos v\right)\right) + e\right) \]
    13. *-commutativeN/A

      \[\leadsto \sin v \cdot \left(\left(\mathsf{neg}\left(\color{blue}{\cos v \cdot {e}^{2}}\right)\right) + e\right) \]
    14. distribute-rgt-neg-inN/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\cos v \cdot \left(\mathsf{neg}\left({e}^{2}\right)\right)} + e\right) \]
    15. lower-fma.f64N/A

      \[\leadsto \sin v \cdot \color{blue}{\mathsf{fma}\left(\cos v, \mathsf{neg}\left({e}^{2}\right), e\right)} \]
  5. Applied rewrites98.5%

    \[\leadsto \color{blue}{\sin v \cdot \mathsf{fma}\left(\cos v, e \cdot \left(-e\right), e\right)} \]
  6. Taylor expanded in v around 0

    \[\leadsto \sin v \cdot \color{blue}{\left(e + -1 \cdot {e}^{2}\right)} \]
  7. Step-by-step derivation
    1. mul-1-negN/A

      \[\leadsto \sin v \cdot \left(e + \color{blue}{\left(\mathsf{neg}\left({e}^{2}\right)\right)}\right) \]
    2. unsub-negN/A

      \[\leadsto \sin v \cdot \color{blue}{\left(e - {e}^{2}\right)} \]
    3. lower--.f64N/A

      \[\leadsto \sin v \cdot \color{blue}{\left(e - {e}^{2}\right)} \]
    4. unpow2N/A

      \[\leadsto \sin v \cdot \left(e - \color{blue}{e \cdot e}\right) \]
    5. lower-*.f6497.9

      \[\leadsto \sin v \cdot \left(e - \color{blue}{e \cdot e}\right) \]
  8. Applied rewrites97.9%

    \[\leadsto \sin v \cdot \color{blue}{\left(e - e \cdot e\right)} \]
  9. Add Preprocessing

Alternative 5: 75.0% accurate, 2.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)\\ \mathbf{if}\;v \leq 6 \cdot 10^{-30}:\\ \;\;\;\;\frac{e \cdot v}{1 - t\_0 \cdot t\_0} \cdot \left(1 - t\_0\right)\\ \mathbf{else}:\\ \;\;\;\;e \cdot \sin v\\ \end{array} \end{array} \]
(FPCore (e v)
 :precision binary64
 (let* ((t_0 (fma (* v v) (fma e -0.3333333333333333 0.16666666666666666) e)))
   (if (<= v 6e-30)
     (* (/ (* e v) (- 1.0 (* t_0 t_0))) (- 1.0 t_0))
     (* e (sin v)))))
double code(double e, double v) {
	double t_0 = fma((v * v), fma(e, -0.3333333333333333, 0.16666666666666666), e);
	double tmp;
	if (v <= 6e-30) {
		tmp = ((e * v) / (1.0 - (t_0 * t_0))) * (1.0 - t_0);
	} else {
		tmp = e * sin(v);
	}
	return tmp;
}
function code(e, v)
	t_0 = fma(Float64(v * v), fma(e, -0.3333333333333333, 0.16666666666666666), e)
	tmp = 0.0
	if (v <= 6e-30)
		tmp = Float64(Float64(Float64(e * v) / Float64(1.0 - Float64(t_0 * t_0))) * Float64(1.0 - t_0));
	else
		tmp = Float64(e * sin(v));
	end
	return tmp
end
code[e_, v_] := Block[{t$95$0 = N[(N[(v * v), $MachinePrecision] * N[(e * -0.3333333333333333 + 0.16666666666666666), $MachinePrecision] + e), $MachinePrecision]}, If[LessEqual[v, 6e-30], N[(N[(N[(e * v), $MachinePrecision] / N[(1.0 - N[(t$95$0 * t$95$0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(1.0 - t$95$0), $MachinePrecision]), $MachinePrecision], N[(e * N[Sin[v], $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)\\
\mathbf{if}\;v \leq 6 \cdot 10^{-30}:\\
\;\;\;\;\frac{e \cdot v}{1 - t\_0 \cdot t\_0} \cdot \left(1 - t\_0\right)\\

\mathbf{else}:\\
\;\;\;\;e \cdot \sin v\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if v < 5.9999999999999998e-30

    1. Initial program 99.8%

      \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift-sin.f64N/A

        \[\leadsto \frac{e \cdot \color{blue}{\sin v}}{1 + e \cdot \cos v} \]
      2. lift-cos.f64N/A

        \[\leadsto \frac{e \cdot \sin v}{1 + e \cdot \color{blue}{\cos v}} \]
      3. lift-*.f64N/A

        \[\leadsto \frac{e \cdot \sin v}{1 + \color{blue}{e \cdot \cos v}} \]
      4. lift-+.f64N/A

        \[\leadsto \frac{e \cdot \sin v}{\color{blue}{1 + e \cdot \cos v}} \]
      5. associate-/l*N/A

        \[\leadsto \color{blue}{e \cdot \frac{\sin v}{1 + e \cdot \cos v}} \]
      6. clear-numN/A

        \[\leadsto e \cdot \color{blue}{\frac{1}{\frac{1 + e \cdot \cos v}{\sin v}}} \]
      7. un-div-invN/A

        \[\leadsto \color{blue}{\frac{e}{\frac{1 + e \cdot \cos v}{\sin v}}} \]
      8. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{e}{\frac{1 + e \cdot \cos v}{\sin v}}} \]
      9. lower-/.f6499.7

        \[\leadsto \frac{e}{\color{blue}{\frac{1 + e \cdot \cos v}{\sin v}}} \]
      10. lift-+.f64N/A

        \[\leadsto \frac{e}{\frac{\color{blue}{1 + e \cdot \cos v}}{\sin v}} \]
      11. +-commutativeN/A

        \[\leadsto \frac{e}{\frac{\color{blue}{e \cdot \cos v + 1}}{\sin v}} \]
      12. lift-*.f64N/A

        \[\leadsto \frac{e}{\frac{\color{blue}{e \cdot \cos v} + 1}{\sin v}} \]
      13. lower-fma.f6499.7

        \[\leadsto \frac{e}{\frac{\color{blue}{\mathsf{fma}\left(e, \cos v, 1\right)}}{\sin v}} \]
    4. Applied rewrites99.7%

      \[\leadsto \color{blue}{\frac{e}{\frac{\mathsf{fma}\left(e, \cos v, 1\right)}{\sin v}}} \]
    5. Taylor expanded in v around 0

      \[\leadsto \frac{e}{\color{blue}{\frac{1 + \left(e + {v}^{2} \cdot \left(\frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right)\right)\right)}{v}}} \]
    6. Step-by-step derivation
      1. lower-/.f64N/A

        \[\leadsto \frac{e}{\color{blue}{\frac{1 + \left(e + {v}^{2} \cdot \left(\frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right)\right)\right)}{v}}} \]
      2. associate-+r+N/A

        \[\leadsto \frac{e}{\frac{\color{blue}{\left(1 + e\right) + {v}^{2} \cdot \left(\frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right)\right)}}{v}} \]
      3. +-commutativeN/A

        \[\leadsto \frac{e}{\frac{\color{blue}{{v}^{2} \cdot \left(\frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right)\right) + \left(1 + e\right)}}{v}} \]
      4. lower-fma.f64N/A

        \[\leadsto \frac{e}{\frac{\color{blue}{\mathsf{fma}\left({v}^{2}, \frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right), 1 + e\right)}}{v}} \]
      5. unpow2N/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(\color{blue}{v \cdot v}, \frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right), 1 + e\right)}{v}} \]
      6. lower-*.f64N/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(\color{blue}{v \cdot v}, \frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right), 1 + e\right)}{v}} \]
      7. sub-negN/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \color{blue}{\frac{-1}{2} \cdot e + \left(\mathsf{neg}\left(\frac{-1}{6} \cdot \left(1 + e\right)\right)\right)}, 1 + e\right)}{v}} \]
      8. *-commutativeN/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \color{blue}{e \cdot \frac{-1}{2}} + \left(\mathsf{neg}\left(\frac{-1}{6} \cdot \left(1 + e\right)\right)\right), 1 + e\right)}{v}} \]
      9. lower-fma.f64N/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \color{blue}{\mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{neg}\left(\frac{-1}{6} \cdot \left(1 + e\right)\right)\right)}, 1 + e\right)}{v}} \]
      10. *-commutativeN/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{neg}\left(\color{blue}{\left(1 + e\right) \cdot \frac{-1}{6}}\right)\right), 1 + e\right)}{v}} \]
      11. distribute-rgt-neg-inN/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \color{blue}{\left(1 + e\right) \cdot \left(\mathsf{neg}\left(\frac{-1}{6}\right)\right)}\right), 1 + e\right)}{v}} \]
      12. metadata-evalN/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \left(1 + e\right) \cdot \color{blue}{\frac{1}{6}}\right), 1 + e\right)}{v}} \]
      13. +-commutativeN/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \color{blue}{\left(e + 1\right)} \cdot \frac{1}{6}\right), 1 + e\right)}{v}} \]
      14. distribute-lft1-inN/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \color{blue}{e \cdot \frac{1}{6} + \frac{1}{6}}\right), 1 + e\right)}{v}} \]
      15. lower-fma.f64N/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \color{blue}{\mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)}\right), 1 + e\right)}{v}} \]
      16. +-commutativeN/A

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), \color{blue}{e + 1}\right)}{v}} \]
      17. lower-+.f6465.7

        \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.5, \mathsf{fma}\left(e, 0.16666666666666666, 0.16666666666666666\right)\right), \color{blue}{e + 1}\right)}{v}} \]
    7. Applied rewrites65.7%

      \[\leadsto \frac{e}{\color{blue}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.5, \mathsf{fma}\left(e, 0.16666666666666666, 0.16666666666666666\right)\right), e + 1\right)}{v}}} \]
    8. Step-by-step derivation
      1. lift-*.f64N/A

        \[\leadsto \frac{e}{\frac{\color{blue}{\left(v \cdot v\right)} \cdot \left(e \cdot \frac{-1}{2} + \left(e \cdot \frac{1}{6} + \frac{1}{6}\right)\right) + \left(e + 1\right)}{v}} \]
      2. lift-fma.f64N/A

        \[\leadsto \frac{e}{\frac{\left(v \cdot v\right) \cdot \left(e \cdot \frac{-1}{2} + \color{blue}{\mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)}\right) + \left(e + 1\right)}{v}} \]
      3. lift-fma.f64N/A

        \[\leadsto \frac{e}{\frac{\left(v \cdot v\right) \cdot \color{blue}{\mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right)} + \left(e + 1\right)}{v}} \]
      4. lift-+.f64N/A

        \[\leadsto \frac{e}{\frac{\left(v \cdot v\right) \cdot \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right) + \color{blue}{\left(e + 1\right)}}{v}} \]
      5. lift-fma.f64N/A

        \[\leadsto \frac{e}{\frac{\color{blue}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)}}{v}} \]
      6. associate-/r/N/A

        \[\leadsto \color{blue}{\frac{e}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)} \cdot v} \]
      7. associate-*l/N/A

        \[\leadsto \color{blue}{\frac{e \cdot v}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)}} \]
      8. lift-*.f64N/A

        \[\leadsto \frac{\color{blue}{e \cdot v}}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)} \]
      9. div-invN/A

        \[\leadsto \color{blue}{\left(e \cdot v\right) \cdot \frac{1}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)}} \]
      10. lower-*.f64N/A

        \[\leadsto \color{blue}{\left(e \cdot v\right) \cdot \frac{1}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)}} \]
      11. lift-*.f64N/A

        \[\leadsto \color{blue}{\left(e \cdot v\right)} \cdot \frac{1}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)} \]
      12. *-commutativeN/A

        \[\leadsto \color{blue}{\left(v \cdot e\right)} \cdot \frac{1}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)} \]
      13. lower-*.f64N/A

        \[\leadsto \color{blue}{\left(v \cdot e\right)} \cdot \frac{1}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)} \]
      14. lower-/.f6465.8

        \[\leadsto \left(v \cdot e\right) \cdot \color{blue}{\frac{1}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.5, \mathsf{fma}\left(e, 0.16666666666666666, 0.16666666666666666\right)\right), e + 1\right)}} \]
      15. lift-fma.f64N/A

        \[\leadsto \left(v \cdot e\right) \cdot \frac{1}{\color{blue}{\left(v \cdot v\right) \cdot \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right) + \left(e + 1\right)}} \]
      16. lift-+.f64N/A

        \[\leadsto \left(v \cdot e\right) \cdot \frac{1}{\left(v \cdot v\right) \cdot \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right) + \color{blue}{\left(e + 1\right)}} \]
      17. associate-+r+N/A

        \[\leadsto \left(v \cdot e\right) \cdot \frac{1}{\color{blue}{\left(\left(v \cdot v\right) \cdot \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right) + e\right) + 1}} \]
    9. Applied rewrites65.8%

      \[\leadsto \color{blue}{\left(v \cdot e\right) \cdot \frac{1}{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)}} \]
    10. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \color{blue}{\left(e \cdot v\right)} \cdot \frac{1}{1 + \left(v \cdot \left(v \cdot \left(e \cdot \frac{-1}{3} + \frac{1}{6}\right)\right) + e\right)} \]
      2. lift-*.f64N/A

        \[\leadsto \color{blue}{\left(e \cdot v\right)} \cdot \frac{1}{1 + \left(v \cdot \left(v \cdot \left(e \cdot \frac{-1}{3} + \frac{1}{6}\right)\right) + e\right)} \]
      3. lift-fma.f64N/A

        \[\leadsto \left(e \cdot v\right) \cdot \frac{1}{1 + \left(v \cdot \left(v \cdot \color{blue}{\mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right)}\right) + e\right)} \]
      4. lift-*.f64N/A

        \[\leadsto \left(e \cdot v\right) \cdot \frac{1}{1 + \left(v \cdot \color{blue}{\left(v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right)\right)} + e\right)} \]
      5. lift-fma.f64N/A

        \[\leadsto \left(e \cdot v\right) \cdot \frac{1}{1 + \color{blue}{\mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)}} \]
      6. lift-+.f64N/A

        \[\leadsto \left(e \cdot v\right) \cdot \frac{1}{\color{blue}{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)}} \]
      7. clear-numN/A

        \[\leadsto \left(e \cdot v\right) \cdot \color{blue}{\frac{1}{\frac{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)}{1}}} \]
      8. un-div-invN/A

        \[\leadsto \color{blue}{\frac{e \cdot v}{\frac{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)}{1}}} \]
      9. /-rgt-identityN/A

        \[\leadsto \frac{e \cdot v}{\color{blue}{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)}} \]
      10. lift-+.f64N/A

        \[\leadsto \frac{e \cdot v}{\color{blue}{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)}} \]
      11. flip-+N/A

        \[\leadsto \frac{e \cdot v}{\color{blue}{\frac{1 \cdot 1 - \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right) \cdot \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)}{1 - \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)}}} \]
      12. associate-/r/N/A

        \[\leadsto \color{blue}{\frac{e \cdot v}{1 \cdot 1 - \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right) \cdot \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)} \cdot \left(1 - \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)\right)} \]
      13. lower-*.f64N/A

        \[\leadsto \color{blue}{\frac{e \cdot v}{1 \cdot 1 - \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right) \cdot \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)} \cdot \left(1 - \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, \frac{-1}{3}, \frac{1}{6}\right), e\right)\right)} \]
    11. Applied rewrites64.9%

      \[\leadsto \color{blue}{\frac{e \cdot v}{1 - \mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right) \cdot \mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)} \cdot \left(1 - \mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)\right)} \]

    if 5.9999999999999998e-30 < v

    1. Initial program 99.5%

      \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
    2. Add Preprocessing
    3. Taylor expanded in e around 0

      \[\leadsto \color{blue}{e \cdot \sin v} \]
    4. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \color{blue}{e \cdot \sin v} \]
      2. lower-sin.f6499.5

        \[\leadsto e \cdot \color{blue}{\sin v} \]
    5. Applied rewrites99.5%

      \[\leadsto \color{blue}{e \cdot \sin v} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 6: 52.9% accurate, 6.1× speedup?

\[\begin{array}{l} \\ v \cdot \frac{e}{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)} \end{array} \]
(FPCore (e v)
 :precision binary64
 (*
  v
  (/
   e
   (+ 1.0 (fma v (* v (fma e -0.3333333333333333 0.16666666666666666)) e)))))
double code(double e, double v) {
	return v * (e / (1.0 + fma(v, (v * fma(e, -0.3333333333333333, 0.16666666666666666)), e)));
}
function code(e, v)
	return Float64(v * Float64(e / Float64(1.0 + fma(v, Float64(v * fma(e, -0.3333333333333333, 0.16666666666666666)), e))))
end
code[e_, v_] := N[(v * N[(e / N[(1.0 + N[(v * N[(v * N[(e * -0.3333333333333333 + 0.16666666666666666), $MachinePrecision]), $MachinePrecision] + e), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
v \cdot \frac{e}{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)}
\end{array}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-sin.f64N/A

      \[\leadsto \frac{e \cdot \color{blue}{\sin v}}{1 + e \cdot \cos v} \]
    2. lift-cos.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{1 + e \cdot \color{blue}{\cos v}} \]
    3. lift-*.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{1 + \color{blue}{e \cdot \cos v}} \]
    4. lift-+.f64N/A

      \[\leadsto \frac{e \cdot \sin v}{\color{blue}{1 + e \cdot \cos v}} \]
    5. associate-/l*N/A

      \[\leadsto \color{blue}{e \cdot \frac{\sin v}{1 + e \cdot \cos v}} \]
    6. clear-numN/A

      \[\leadsto e \cdot \color{blue}{\frac{1}{\frac{1 + e \cdot \cos v}{\sin v}}} \]
    7. un-div-invN/A

      \[\leadsto \color{blue}{\frac{e}{\frac{1 + e \cdot \cos v}{\sin v}}} \]
    8. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{e}{\frac{1 + e \cdot \cos v}{\sin v}}} \]
    9. lower-/.f6499.7

      \[\leadsto \frac{e}{\color{blue}{\frac{1 + e \cdot \cos v}{\sin v}}} \]
    10. lift-+.f64N/A

      \[\leadsto \frac{e}{\frac{\color{blue}{1 + e \cdot \cos v}}{\sin v}} \]
    11. +-commutativeN/A

      \[\leadsto \frac{e}{\frac{\color{blue}{e \cdot \cos v + 1}}{\sin v}} \]
    12. lift-*.f64N/A

      \[\leadsto \frac{e}{\frac{\color{blue}{e \cdot \cos v} + 1}{\sin v}} \]
    13. lower-fma.f6499.7

      \[\leadsto \frac{e}{\frac{\color{blue}{\mathsf{fma}\left(e, \cos v, 1\right)}}{\sin v}} \]
  4. Applied rewrites99.7%

    \[\leadsto \color{blue}{\frac{e}{\frac{\mathsf{fma}\left(e, \cos v, 1\right)}{\sin v}}} \]
  5. Taylor expanded in v around 0

    \[\leadsto \frac{e}{\color{blue}{\frac{1 + \left(e + {v}^{2} \cdot \left(\frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right)\right)\right)}{v}}} \]
  6. Step-by-step derivation
    1. lower-/.f64N/A

      \[\leadsto \frac{e}{\color{blue}{\frac{1 + \left(e + {v}^{2} \cdot \left(\frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right)\right)\right)}{v}}} \]
    2. associate-+r+N/A

      \[\leadsto \frac{e}{\frac{\color{blue}{\left(1 + e\right) + {v}^{2} \cdot \left(\frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right)\right)}}{v}} \]
    3. +-commutativeN/A

      \[\leadsto \frac{e}{\frac{\color{blue}{{v}^{2} \cdot \left(\frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right)\right) + \left(1 + e\right)}}{v}} \]
    4. lower-fma.f64N/A

      \[\leadsto \frac{e}{\frac{\color{blue}{\mathsf{fma}\left({v}^{2}, \frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right), 1 + e\right)}}{v}} \]
    5. unpow2N/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(\color{blue}{v \cdot v}, \frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right), 1 + e\right)}{v}} \]
    6. lower-*.f64N/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(\color{blue}{v \cdot v}, \frac{-1}{2} \cdot e - \frac{-1}{6} \cdot \left(1 + e\right), 1 + e\right)}{v}} \]
    7. sub-negN/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \color{blue}{\frac{-1}{2} \cdot e + \left(\mathsf{neg}\left(\frac{-1}{6} \cdot \left(1 + e\right)\right)\right)}, 1 + e\right)}{v}} \]
    8. *-commutativeN/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \color{blue}{e \cdot \frac{-1}{2}} + \left(\mathsf{neg}\left(\frac{-1}{6} \cdot \left(1 + e\right)\right)\right), 1 + e\right)}{v}} \]
    9. lower-fma.f64N/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \color{blue}{\mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{neg}\left(\frac{-1}{6} \cdot \left(1 + e\right)\right)\right)}, 1 + e\right)}{v}} \]
    10. *-commutativeN/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{neg}\left(\color{blue}{\left(1 + e\right) \cdot \frac{-1}{6}}\right)\right), 1 + e\right)}{v}} \]
    11. distribute-rgt-neg-inN/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \color{blue}{\left(1 + e\right) \cdot \left(\mathsf{neg}\left(\frac{-1}{6}\right)\right)}\right), 1 + e\right)}{v}} \]
    12. metadata-evalN/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \left(1 + e\right) \cdot \color{blue}{\frac{1}{6}}\right), 1 + e\right)}{v}} \]
    13. +-commutativeN/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \color{blue}{\left(e + 1\right)} \cdot \frac{1}{6}\right), 1 + e\right)}{v}} \]
    14. distribute-lft1-inN/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \color{blue}{e \cdot \frac{1}{6} + \frac{1}{6}}\right), 1 + e\right)}{v}} \]
    15. lower-fma.f64N/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \color{blue}{\mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)}\right), 1 + e\right)}{v}} \]
    16. +-commutativeN/A

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), \color{blue}{e + 1}\right)}{v}} \]
    17. lower-+.f6454.5

      \[\leadsto \frac{e}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.5, \mathsf{fma}\left(e, 0.16666666666666666, 0.16666666666666666\right)\right), \color{blue}{e + 1}\right)}{v}} \]
  7. Applied rewrites54.5%

    \[\leadsto \frac{e}{\color{blue}{\frac{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, -0.5, \mathsf{fma}\left(e, 0.16666666666666666, 0.16666666666666666\right)\right), e + 1\right)}{v}}} \]
  8. Step-by-step derivation
    1. lift-*.f64N/A

      \[\leadsto \frac{e}{\frac{\color{blue}{\left(v \cdot v\right)} \cdot \left(e \cdot \frac{-1}{2} + \left(e \cdot \frac{1}{6} + \frac{1}{6}\right)\right) + \left(e + 1\right)}{v}} \]
    2. lift-fma.f64N/A

      \[\leadsto \frac{e}{\frac{\left(v \cdot v\right) \cdot \left(e \cdot \frac{-1}{2} + \color{blue}{\mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)}\right) + \left(e + 1\right)}{v}} \]
    3. lift-fma.f64N/A

      \[\leadsto \frac{e}{\frac{\left(v \cdot v\right) \cdot \color{blue}{\mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right)} + \left(e + 1\right)}{v}} \]
    4. lift-+.f64N/A

      \[\leadsto \frac{e}{\frac{\left(v \cdot v\right) \cdot \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right) + \color{blue}{\left(e + 1\right)}}{v}} \]
    5. lift-fma.f64N/A

      \[\leadsto \frac{e}{\frac{\color{blue}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)}}{v}} \]
    6. associate-/r/N/A

      \[\leadsto \color{blue}{\frac{e}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)} \cdot v} \]
    7. lower-*.f64N/A

      \[\leadsto \color{blue}{\frac{e}{\mathsf{fma}\left(v \cdot v, \mathsf{fma}\left(e, \frac{-1}{2}, \mathsf{fma}\left(e, \frac{1}{6}, \frac{1}{6}\right)\right), e + 1\right)} \cdot v} \]
  9. Applied rewrites54.6%

    \[\leadsto \color{blue}{\frac{e}{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)} \cdot v} \]
  10. Final simplification54.6%

    \[\leadsto v \cdot \frac{e}{1 + \mathsf{fma}\left(v, v \cdot \mathsf{fma}\left(e, -0.3333333333333333, 0.16666666666666666\right), e\right)} \]
  11. Add Preprocessing

Alternative 7: 51.8% accurate, 11.3× speedup?

\[\begin{array}{l} \\ v \cdot \frac{e}{e + 1} \end{array} \]
(FPCore (e v) :precision binary64 (* v (/ e (+ e 1.0))))
double code(double e, double v) {
	return v * (e / (e + 1.0));
}
real(8) function code(e, v)
    real(8), intent (in) :: e
    real(8), intent (in) :: v
    code = v * (e / (e + 1.0d0))
end function
public static double code(double e, double v) {
	return v * (e / (e + 1.0));
}
def code(e, v):
	return v * (e / (e + 1.0))
function code(e, v)
	return Float64(v * Float64(e / Float64(e + 1.0)))
end
function tmp = code(e, v)
	tmp = v * (e / (e + 1.0));
end
code[e_, v_] := N[(v * N[(e / N[(e + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
v \cdot \frac{e}{e + 1}
\end{array}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Taylor expanded in v around 0

    \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
  4. Step-by-step derivation
    1. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
    2. lower-*.f64N/A

      \[\leadsto \frac{\color{blue}{e \cdot v}}{1 + e} \]
    3. lower-+.f6453.4

      \[\leadsto \frac{e \cdot v}{\color{blue}{1 + e}} \]
  5. Applied rewrites53.4%

    \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
  6. Step-by-step derivation
    1. *-commutativeN/A

      \[\leadsto \frac{\color{blue}{v \cdot e}}{1 + e} \]
    2. lift-+.f64N/A

      \[\leadsto \frac{v \cdot e}{\color{blue}{1 + e}} \]
    3. associate-/l*N/A

      \[\leadsto \color{blue}{v \cdot \frac{e}{1 + e}} \]
    4. *-commutativeN/A

      \[\leadsto \color{blue}{\frac{e}{1 + e} \cdot v} \]
    5. lower-*.f64N/A

      \[\leadsto \color{blue}{\frac{e}{1 + e} \cdot v} \]
    6. lower-/.f6453.4

      \[\leadsto \color{blue}{\frac{e}{1 + e}} \cdot v \]
    7. lift-+.f64N/A

      \[\leadsto \frac{e}{\color{blue}{1 + e}} \cdot v \]
    8. +-commutativeN/A

      \[\leadsto \frac{e}{\color{blue}{e + 1}} \cdot v \]
    9. lower-+.f6453.4

      \[\leadsto \frac{e}{\color{blue}{e + 1}} \cdot v \]
  7. Applied rewrites53.4%

    \[\leadsto \color{blue}{\frac{e}{e + 1} \cdot v} \]
  8. Final simplification53.4%

    \[\leadsto v \cdot \frac{e}{e + 1} \]
  9. Add Preprocessing

Alternative 8: 51.2% accurate, 11.8× speedup?

\[\begin{array}{l} \\ \mathsf{fma}\left(v, e, -e \cdot \left(e \cdot v\right)\right) \end{array} \]
(FPCore (e v) :precision binary64 (fma v e (- (* e (* e v)))))
double code(double e, double v) {
	return fma(v, e, -(e * (e * v)));
}
function code(e, v)
	return fma(v, e, Float64(-Float64(e * Float64(e * v))))
end
code[e_, v_] := N[(v * e + (-N[(e * N[(e * v), $MachinePrecision]), $MachinePrecision])), $MachinePrecision]
\begin{array}{l}

\\
\mathsf{fma}\left(v, e, -e \cdot \left(e \cdot v\right)\right)
\end{array}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Taylor expanded in v around 0

    \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
  4. Step-by-step derivation
    1. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
    2. lower-*.f64N/A

      \[\leadsto \frac{\color{blue}{e \cdot v}}{1 + e} \]
    3. lower-+.f6453.4

      \[\leadsto \frac{e \cdot v}{\color{blue}{1 + e}} \]
  5. Applied rewrites53.4%

    \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
  6. Taylor expanded in e around 0

    \[\leadsto \color{blue}{e \cdot \left(v + -1 \cdot \left(e \cdot v\right)\right)} \]
  7. Step-by-step derivation
    1. lower-*.f64N/A

      \[\leadsto \color{blue}{e \cdot \left(v + -1 \cdot \left(e \cdot v\right)\right)} \]
    2. mul-1-negN/A

      \[\leadsto e \cdot \left(v + \color{blue}{\left(\mathsf{neg}\left(e \cdot v\right)\right)}\right) \]
    3. unsub-negN/A

      \[\leadsto e \cdot \color{blue}{\left(v - e \cdot v\right)} \]
    4. lower--.f64N/A

      \[\leadsto e \cdot \color{blue}{\left(v - e \cdot v\right)} \]
    5. lower-*.f6452.2

      \[\leadsto e \cdot \left(v - \color{blue}{e \cdot v}\right) \]
  8. Applied rewrites52.2%

    \[\leadsto \color{blue}{e \cdot \left(v - e \cdot v\right)} \]
  9. Step-by-step derivation
    1. lift-*.f64N/A

      \[\leadsto e \cdot \left(v - \color{blue}{e \cdot v}\right) \]
    2. sub-negN/A

      \[\leadsto e \cdot \color{blue}{\left(v + \left(\mathsf{neg}\left(e \cdot v\right)\right)\right)} \]
    3. distribute-rgt-inN/A

      \[\leadsto \color{blue}{v \cdot e + \left(\mathsf{neg}\left(e \cdot v\right)\right) \cdot e} \]
    4. lower-fma.f64N/A

      \[\leadsto \color{blue}{\mathsf{fma}\left(v, e, \left(\mathsf{neg}\left(e \cdot v\right)\right) \cdot e\right)} \]
    5. lower-*.f64N/A

      \[\leadsto \mathsf{fma}\left(v, e, \color{blue}{\left(\mathsf{neg}\left(e \cdot v\right)\right) \cdot e}\right) \]
    6. lift-*.f64N/A

      \[\leadsto \mathsf{fma}\left(v, e, \left(\mathsf{neg}\left(\color{blue}{e \cdot v}\right)\right) \cdot e\right) \]
    7. distribute-rgt-neg-inN/A

      \[\leadsto \mathsf{fma}\left(v, e, \color{blue}{\left(e \cdot \left(\mathsf{neg}\left(v\right)\right)\right)} \cdot e\right) \]
    8. lower-*.f64N/A

      \[\leadsto \mathsf{fma}\left(v, e, \color{blue}{\left(e \cdot \left(\mathsf{neg}\left(v\right)\right)\right)} \cdot e\right) \]
    9. lower-neg.f6452.2

      \[\leadsto \mathsf{fma}\left(v, e, \left(e \cdot \color{blue}{\left(-v\right)}\right) \cdot e\right) \]
  10. Applied rewrites52.2%

    \[\leadsto \color{blue}{\mathsf{fma}\left(v, e, \left(e \cdot \left(-v\right)\right) \cdot e\right)} \]
  11. Final simplification52.2%

    \[\leadsto \mathsf{fma}\left(v, e, -e \cdot \left(e \cdot v\right)\right) \]
  12. Add Preprocessing

Alternative 9: 51.2% accurate, 16.1× speedup?

\[\begin{array}{l} \\ v \cdot \left(e - e \cdot e\right) \end{array} \]
(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}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Taylor expanded in e around 0

    \[\leadsto \color{blue}{e \cdot \left(\sin v + -1 \cdot \left(e \cdot \left(\cos v \cdot \sin v\right)\right)\right)} \]
  4. Step-by-step derivation
    1. +-commutativeN/A

      \[\leadsto e \cdot \color{blue}{\left(-1 \cdot \left(e \cdot \left(\cos v \cdot \sin v\right)\right) + \sin v\right)} \]
    2. distribute-lft-inN/A

      \[\leadsto \color{blue}{e \cdot \left(-1 \cdot \left(e \cdot \left(\cos v \cdot \sin v\right)\right)\right) + e \cdot \sin v} \]
    3. associate-*r*N/A

      \[\leadsto e \cdot \color{blue}{\left(\left(-1 \cdot e\right) \cdot \left(\cos v \cdot \sin v\right)\right)} + e \cdot \sin v \]
    4. associate-*r*N/A

      \[\leadsto \color{blue}{\left(e \cdot \left(-1 \cdot e\right)\right) \cdot \left(\cos v \cdot \sin v\right)} + e \cdot \sin v \]
    5. mul-1-negN/A

      \[\leadsto \left(e \cdot \color{blue}{\left(\mathsf{neg}\left(e\right)\right)}\right) \cdot \left(\cos v \cdot \sin v\right) + e \cdot \sin v \]
    6. distribute-rgt-neg-outN/A

      \[\leadsto \color{blue}{\left(\mathsf{neg}\left(e \cdot e\right)\right)} \cdot \left(\cos v \cdot \sin v\right) + e \cdot \sin v \]
    7. unpow2N/A

      \[\leadsto \left(\mathsf{neg}\left(\color{blue}{{e}^{2}}\right)\right) \cdot \left(\cos v \cdot \sin v\right) + e \cdot \sin v \]
    8. associate-*r*N/A

      \[\leadsto \color{blue}{\left(\left(\mathsf{neg}\left({e}^{2}\right)\right) \cdot \cos v\right) \cdot \sin v} + e \cdot \sin v \]
    9. distribute-lft-neg-inN/A

      \[\leadsto \color{blue}{\left(\mathsf{neg}\left({e}^{2} \cdot \cos v\right)\right)} \cdot \sin v + e \cdot \sin v \]
    10. distribute-rgt-outN/A

      \[\leadsto \color{blue}{\sin v \cdot \left(\left(\mathsf{neg}\left({e}^{2} \cdot \cos v\right)\right) + e\right)} \]
    11. lower-*.f64N/A

      \[\leadsto \color{blue}{\sin v \cdot \left(\left(\mathsf{neg}\left({e}^{2} \cdot \cos v\right)\right) + e\right)} \]
    12. lower-sin.f64N/A

      \[\leadsto \color{blue}{\sin v} \cdot \left(\left(\mathsf{neg}\left({e}^{2} \cdot \cos v\right)\right) + e\right) \]
    13. *-commutativeN/A

      \[\leadsto \sin v \cdot \left(\left(\mathsf{neg}\left(\color{blue}{\cos v \cdot {e}^{2}}\right)\right) + e\right) \]
    14. distribute-rgt-neg-inN/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\cos v \cdot \left(\mathsf{neg}\left({e}^{2}\right)\right)} + e\right) \]
    15. lower-fma.f64N/A

      \[\leadsto \sin v \cdot \color{blue}{\mathsf{fma}\left(\cos v, \mathsf{neg}\left({e}^{2}\right), e\right)} \]
  5. Applied rewrites98.5%

    \[\leadsto \color{blue}{\sin v \cdot \mathsf{fma}\left(\cos v, e \cdot \left(-e\right), e\right)} \]
  6. Step-by-step derivation
    1. lift-cos.f64N/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\cos v} \cdot \left(e \cdot \left(\mathsf{neg}\left(e\right)\right)\right) + e\right) \]
    2. lift-neg.f64N/A

      \[\leadsto \sin v \cdot \left(\cos v \cdot \left(e \cdot \color{blue}{\left(\mathsf{neg}\left(e\right)\right)}\right) + e\right) \]
    3. associate-*r*N/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\left(\cos v \cdot e\right) \cdot \left(\mathsf{neg}\left(e\right)\right)} + e\right) \]
    4. lift-neg.f64N/A

      \[\leadsto \sin v \cdot \left(\left(\cos v \cdot e\right) \cdot \color{blue}{\left(\mathsf{neg}\left(e\right)\right)} + e\right) \]
    5. distribute-rgt-neg-outN/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\left(\mathsf{neg}\left(\left(\cos v \cdot e\right) \cdot e\right)\right)} + e\right) \]
    6. distribute-lft-neg-inN/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\left(\mathsf{neg}\left(\cos v \cdot e\right)\right) \cdot e} + e\right) \]
    7. distribute-lft1-inN/A

      \[\leadsto \sin v \cdot \color{blue}{\left(\left(\left(\mathsf{neg}\left(\cos v \cdot e\right)\right) + 1\right) \cdot e\right)} \]
    8. +-commutativeN/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\left(1 + \left(\mathsf{neg}\left(\cos v \cdot e\right)\right)\right)} \cdot e\right) \]
    9. *-rgt-identityN/A

      \[\leadsto \sin v \cdot \left(\left(1 + \color{blue}{\left(\mathsf{neg}\left(\cos v \cdot e\right)\right) \cdot 1}\right) \cdot e\right) \]
    10. cancel-sign-sub-invN/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\left(1 - \left(\cos v \cdot e\right) \cdot 1\right)} \cdot e\right) \]
    11. metadata-evalN/A

      \[\leadsto \sin v \cdot \left(\left(\color{blue}{1 \cdot 1} - \left(\cos v \cdot e\right) \cdot 1\right) \cdot e\right) \]
    12. lower-*.f64N/A

      \[\leadsto \sin v \cdot \color{blue}{\left(\left(1 \cdot 1 - \left(\cos v \cdot e\right) \cdot 1\right) \cdot e\right)} \]
    13. metadata-evalN/A

      \[\leadsto \sin v \cdot \left(\left(\color{blue}{1} - \left(\cos v \cdot e\right) \cdot 1\right) \cdot e\right) \]
    14. cancel-sign-sub-invN/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\left(1 + \left(\mathsf{neg}\left(\cos v \cdot e\right)\right) \cdot 1\right)} \cdot e\right) \]
    15. *-rgt-identityN/A

      \[\leadsto \sin v \cdot \left(\left(1 + \color{blue}{\left(\mathsf{neg}\left(\cos v \cdot e\right)\right)}\right) \cdot e\right) \]
    16. +-commutativeN/A

      \[\leadsto \sin v \cdot \left(\color{blue}{\left(\left(\mathsf{neg}\left(\cos v \cdot e\right)\right) + 1\right)} \cdot e\right) \]
    17. distribute-rgt-neg-inN/A

      \[\leadsto \sin v \cdot \left(\left(\color{blue}{\cos v \cdot \left(\mathsf{neg}\left(e\right)\right)} + 1\right) \cdot e\right) \]
    18. lift-neg.f64N/A

      \[\leadsto \sin v \cdot \left(\left(\cos v \cdot \color{blue}{\left(\mathsf{neg}\left(e\right)\right)} + 1\right) \cdot e\right) \]
    19. lower-fma.f6498.5

      \[\leadsto \sin v \cdot \left(\color{blue}{\mathsf{fma}\left(\cos v, -e, 1\right)} \cdot e\right) \]
  7. Applied rewrites98.5%

    \[\leadsto \sin v \cdot \color{blue}{\left(\mathsf{fma}\left(\cos v, -e, 1\right) \cdot e\right)} \]
  8. Taylor expanded in v around 0

    \[\leadsto \color{blue}{e \cdot \left(v \cdot \left(1 + -1 \cdot e\right)\right)} \]
  9. Step-by-step derivation
    1. associate-*r*N/A

      \[\leadsto \color{blue}{\left(e \cdot v\right) \cdot \left(1 + -1 \cdot e\right)} \]
    2. *-commutativeN/A

      \[\leadsto \color{blue}{\left(v \cdot e\right)} \cdot \left(1 + -1 \cdot e\right) \]
    3. associate-*r*N/A

      \[\leadsto \color{blue}{v \cdot \left(e \cdot \left(1 + -1 \cdot e\right)\right)} \]
    4. lower-*.f64N/A

      \[\leadsto \color{blue}{v \cdot \left(e \cdot \left(1 + -1 \cdot e\right)\right)} \]
    5. distribute-rgt-inN/A

      \[\leadsto v \cdot \color{blue}{\left(1 \cdot e + \left(-1 \cdot e\right) \cdot e\right)} \]
    6. *-lft-identityN/A

      \[\leadsto v \cdot \left(\color{blue}{e} + \left(-1 \cdot e\right) \cdot e\right) \]
    7. mul-1-negN/A

      \[\leadsto v \cdot \left(e + \color{blue}{\left(\mathsf{neg}\left(e\right)\right)} \cdot e\right) \]
    8. distribute-lft-neg-outN/A

      \[\leadsto v \cdot \left(e + \color{blue}{\left(\mathsf{neg}\left(e \cdot e\right)\right)}\right) \]
    9. unpow2N/A

      \[\leadsto v \cdot \left(e + \left(\mathsf{neg}\left(\color{blue}{{e}^{2}}\right)\right)\right) \]
    10. unsub-negN/A

      \[\leadsto v \cdot \color{blue}{\left(e - {e}^{2}\right)} \]
    11. lower--.f64N/A

      \[\leadsto v \cdot \color{blue}{\left(e - {e}^{2}\right)} \]
    12. unpow2N/A

      \[\leadsto v \cdot \left(e - \color{blue}{e \cdot e}\right) \]
    13. lower-*.f6452.2

      \[\leadsto v \cdot \left(e - \color{blue}{e \cdot e}\right) \]
  10. Applied rewrites52.2%

    \[\leadsto \color{blue}{v \cdot \left(e - e \cdot e\right)} \]
  11. Add Preprocessing

Alternative 10: 51.2% accurate, 16.1× speedup?

\[\begin{array}{l} \\ e \cdot \left(v - e \cdot v\right) \end{array} \]
(FPCore (e v) :precision binary64 (* e (- v (* e v))))
double code(double e, double v) {
	return e * (v - (e * v));
}
real(8) function code(e, v)
    real(8), intent (in) :: e
    real(8), intent (in) :: v
    code = e * (v - (e * v))
end function
public static double code(double e, double v) {
	return e * (v - (e * v));
}
def code(e, v):
	return e * (v - (e * v))
function code(e, v)
	return Float64(e * Float64(v - Float64(e * v)))
end
function tmp = code(e, v)
	tmp = e * (v - (e * v));
end
code[e_, v_] := N[(e * N[(v - N[(e * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
e \cdot \left(v - e \cdot v\right)
\end{array}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Taylor expanded in v around 0

    \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
  4. Step-by-step derivation
    1. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
    2. lower-*.f64N/A

      \[\leadsto \frac{\color{blue}{e \cdot v}}{1 + e} \]
    3. lower-+.f6453.4

      \[\leadsto \frac{e \cdot v}{\color{blue}{1 + e}} \]
  5. Applied rewrites53.4%

    \[\leadsto \color{blue}{\frac{e \cdot v}{1 + e}} \]
  6. Taylor expanded in e around 0

    \[\leadsto \color{blue}{e \cdot \left(v + -1 \cdot \left(e \cdot v\right)\right)} \]
  7. Step-by-step derivation
    1. lower-*.f64N/A

      \[\leadsto \color{blue}{e \cdot \left(v + -1 \cdot \left(e \cdot v\right)\right)} \]
    2. mul-1-negN/A

      \[\leadsto e \cdot \left(v + \color{blue}{\left(\mathsf{neg}\left(e \cdot v\right)\right)}\right) \]
    3. unsub-negN/A

      \[\leadsto e \cdot \color{blue}{\left(v - e \cdot v\right)} \]
    4. lower--.f64N/A

      \[\leadsto e \cdot \color{blue}{\left(v - e \cdot v\right)} \]
    5. lower-*.f6452.2

      \[\leadsto e \cdot \left(v - \color{blue}{e \cdot v}\right) \]
  8. Applied rewrites52.2%

    \[\leadsto \color{blue}{e \cdot \left(v - e \cdot v\right)} \]
  9. Add Preprocessing

Alternative 11: 50.7% accurate, 37.5× speedup?

\[\begin{array}{l} \\ e \cdot v \end{array} \]
(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}
Derivation
  1. Initial program 99.7%

    \[\frac{e \cdot \sin v}{1 + e \cdot \cos v} \]
  2. Add Preprocessing
  3. Taylor expanded in e around 0

    \[\leadsto \color{blue}{e \cdot \sin v} \]
  4. Step-by-step derivation
    1. lower-*.f64N/A

      \[\leadsto \color{blue}{e \cdot \sin v} \]
    2. lower-sin.f6497.2

      \[\leadsto e \cdot \color{blue}{\sin v} \]
  5. Applied rewrites97.2%

    \[\leadsto \color{blue}{e \cdot \sin v} \]
  6. Taylor expanded in v around 0

    \[\leadsto \color{blue}{e \cdot v} \]
  7. Step-by-step derivation
    1. lower-*.f6451.5

      \[\leadsto \color{blue}{e \cdot v} \]
  8. Applied rewrites51.5%

    \[\leadsto \color{blue}{e \cdot v} \]
  9. Add Preprocessing

Reproduce

?
herbie shell --seed 2024214 
(FPCore (e v)
  :name "Trigonometry A"
  :precision binary64
  :pre (and (<= 0.0 e) (<= e 1.0))
  (/ (* e (sin v)) (+ 1.0 (* e (cos v)))))