b parameter of renormalized beta distribution

Percentage Accurate: 99.9% → 99.1%
Time: 8.0s
Alternatives: 11
Speedup: 1.0×

Specification

?
\[\left(0 < m \land 0 < v\right) \land v < 0.25\]
\[\begin{array}{l} \\ \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \end{array} \]
(FPCore (m v) :precision binary64 (* (- (/ (* m (- 1.0 m)) v) 1.0) (- 1.0 m)))
double code(double m, double v) {
	return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m);
}
real(8) function code(m, v)
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    code = (((m * (1.0d0 - m)) / v) - 1.0d0) * (1.0d0 - m)
end function
public static double code(double m, double v) {
	return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m);
}
def code(m, v):
	return (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m)
function code(m, v)
	return Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * Float64(1.0 - m))
end
function tmp = code(m, v)
	tmp = (((m * (1.0 - m)) / v) - 1.0) * (1.0 - m);
end
code[m_, v_] := N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * N[(1.0 - m), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right)
\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: 99.9% accurate, 1.0× speedup?

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

\\
\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right)
\end{array}

Alternative 1: 99.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 9 \cdot 10^{-45}:\\ \;\;\;\;-1 + \left(m + \frac{m}{v}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{m \cdot \left(1 - m\right)}{\frac{v}{1 - m}}\\ \end{array} \end{array} \]
(FPCore (m v)
 :precision binary64
 (if (<= m 9e-45) (+ -1.0 (+ m (/ m v))) (/ (* m (- 1.0 m)) (/ v (- 1.0 m)))))
double code(double m, double v) {
	double tmp;
	if (m <= 9e-45) {
		tmp = -1.0 + (m + (m / v));
	} else {
		tmp = (m * (1.0 - m)) / (v / (1.0 - m));
	}
	return tmp;
}
real(8) function code(m, v)
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    real(8) :: tmp
    if (m <= 9d-45) then
        tmp = (-1.0d0) + (m + (m / v))
    else
        tmp = (m * (1.0d0 - m)) / (v / (1.0d0 - m))
    end if
    code = tmp
end function
public static double code(double m, double v) {
	double tmp;
	if (m <= 9e-45) {
		tmp = -1.0 + (m + (m / v));
	} else {
		tmp = (m * (1.0 - m)) / (v / (1.0 - m));
	}
	return tmp;
}
def code(m, v):
	tmp = 0
	if m <= 9e-45:
		tmp = -1.0 + (m + (m / v))
	else:
		tmp = (m * (1.0 - m)) / (v / (1.0 - m))
	return tmp
function code(m, v)
	tmp = 0.0
	if (m <= 9e-45)
		tmp = Float64(-1.0 + Float64(m + Float64(m / v)));
	else
		tmp = Float64(Float64(m * Float64(1.0 - m)) / Float64(v / Float64(1.0 - m)));
	end
	return tmp
end
function tmp_2 = code(m, v)
	tmp = 0.0;
	if (m <= 9e-45)
		tmp = -1.0 + (m + (m / v));
	else
		tmp = (m * (1.0 - m)) / (v / (1.0 - m));
	end
	tmp_2 = tmp;
end
code[m_, v_] := If[LessEqual[m, 9e-45], N[(-1.0 + N[(m + N[(m / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / N[(v / N[(1.0 - m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;m \leq 9 \cdot 10^{-45}:\\
\;\;\;\;-1 + \left(m + \frac{m}{v}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{m \cdot \left(1 - m\right)}{\frac{v}{1 - m}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if m < 8.9999999999999997e-45

    1. Initial program 100.0%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg100.0%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in m around 0 99.8%

      \[\leadsto \color{blue}{m \cdot \left(1 + \frac{1}{v}\right) - 1} \]
    6. Step-by-step derivation
      1. +-commutative99.8%

        \[\leadsto m \cdot \color{blue}{\left(\frac{1}{v} + 1\right)} - 1 \]
      2. distribute-lft-in99.8%

        \[\leadsto \color{blue}{\left(m \cdot \frac{1}{v} + m \cdot 1\right)} - 1 \]
      3. div-inv100.0%

        \[\leadsto \left(\color{blue}{\frac{m}{v}} + m \cdot 1\right) - 1 \]
      4. *-rgt-identity100.0%

        \[\leadsto \left(\frac{m}{v} + \color{blue}{m}\right) - 1 \]
    7. Applied egg-rr100.0%

      \[\leadsto \color{blue}{\left(\frac{m}{v} + m\right)} - 1 \]

    if 8.9999999999999997e-45 < m

    1. Initial program 99.9%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative99.9%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg99.9%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in v around 0 99.9%

      \[\leadsto \color{blue}{\frac{m \cdot {\left(1 - m\right)}^{2}}{v}} \]
    6. Step-by-step derivation
      1. associate-*l/99.9%

        \[\leadsto \color{blue}{\frac{m}{v} \cdot {\left(1 - m\right)}^{2}} \]
    7. Simplified99.9%

      \[\leadsto \color{blue}{\frac{m}{v} \cdot {\left(1 - m\right)}^{2}} \]
    8. Step-by-step derivation
      1. associate-*l/99.9%

        \[\leadsto \color{blue}{\frac{m \cdot {\left(1 - m\right)}^{2}}{v}} \]
      2. unpow299.9%

        \[\leadsto \frac{m \cdot \color{blue}{\left(\left(1 - m\right) \cdot \left(1 - m\right)\right)}}{v} \]
      3. associate-*r*99.9%

        \[\leadsto \frac{\color{blue}{\left(m \cdot \left(1 - m\right)\right) \cdot \left(1 - m\right)}}{v} \]
      4. /-rgt-identity99.9%

        \[\leadsto \frac{\left(\color{blue}{\frac{m}{1}} \cdot \left(1 - m\right)\right) \cdot \left(1 - m\right)}{v} \]
      5. associate-/r/99.9%

        \[\leadsto \frac{\color{blue}{\frac{m}{\frac{1}{1 - m}}} \cdot \left(1 - m\right)}{v} \]
      6. associate-*l/99.9%

        \[\leadsto \color{blue}{\frac{\frac{m}{\frac{1}{1 - m}}}{v} \cdot \left(1 - m\right)} \]
      7. associate-/l/99.9%

        \[\leadsto \color{blue}{\frac{m}{v \cdot \frac{1}{1 - m}}} \cdot \left(1 - m\right) \]
      8. associate-*l/99.9%

        \[\leadsto \color{blue}{\frac{m \cdot \left(1 - m\right)}{v \cdot \frac{1}{1 - m}}} \]
      9. un-div-inv99.9%

        \[\leadsto \frac{m \cdot \left(1 - m\right)}{\color{blue}{\frac{v}{1 - m}}} \]
    9. Applied egg-rr99.9%

      \[\leadsto \color{blue}{\frac{m \cdot \left(1 - m\right)}{\frac{v}{1 - m}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification100.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;m \leq 9 \cdot 10^{-45}:\\ \;\;\;\;-1 + \left(m + \frac{m}{v}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{m \cdot \left(1 - m\right)}{\frac{v}{1 - m}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 99.9% accurate, 1.0× speedup?

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

\\
\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} + -1\right)
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
  2. Add Preprocessing
  3. Final simplification99.9%

    \[\leadsto \left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} + -1\right) \]
  4. Add Preprocessing

Alternative 3: 99.8% accurate, 1.0× speedup?

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

\\
\left(1 - m\right) \cdot \left(-1 + m \cdot \frac{1 - m}{v}\right)
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
  2. Step-by-step derivation
    1. *-commutative99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
    2. sub-neg99.9%

      \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
    3. associate-/l*99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
    4. metadata-eval99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
  4. Add Preprocessing
  5. Step-by-step derivation
    1. clear-num99.8%

      \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{1}{\frac{\frac{v}{1 - m}}{m}}} + -1\right) \]
    2. associate-/r/99.8%

      \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{1}{\frac{v}{1 - m}} \cdot m} + -1\right) \]
    3. clear-num99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{1 - m}{v}} \cdot m + -1\right) \]
  6. Applied egg-rr99.9%

    \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{1 - m}{v} \cdot m} + -1\right) \]
  7. Final simplification99.9%

    \[\leadsto \left(1 - m\right) \cdot \left(-1 + m \cdot \frac{1 - m}{v}\right) \]
  8. Add Preprocessing

Alternative 4: 99.9% accurate, 1.0× speedup?

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

\\
\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
  2. Step-by-step derivation
    1. *-commutative99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
    2. sub-neg99.9%

      \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
    3. associate-/l*99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
    4. metadata-eval99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
  4. Add Preprocessing
  5. Final simplification99.9%

    \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right) \]
  6. Add Preprocessing

Alternative 5: 60.8% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 2.1 \cdot 10^{-164}:\\ \;\;\;\;-1\\ \mathbf{elif}\;m \leq 4.5 \cdot 10^{-129}:\\ \;\;\;\;\frac{m}{v}\\ \mathbf{elif}\;m \leq 3.1 \cdot 10^{-103}:\\ \;\;\;\;-1\\ \mathbf{else}:\\ \;\;\;\;m + \frac{m}{v}\\ \end{array} \end{array} \]
(FPCore (m v)
 :precision binary64
 (if (<= m 2.1e-164)
   -1.0
   (if (<= m 4.5e-129) (/ m v) (if (<= m 3.1e-103) -1.0 (+ m (/ m v))))))
double code(double m, double v) {
	double tmp;
	if (m <= 2.1e-164) {
		tmp = -1.0;
	} else if (m <= 4.5e-129) {
		tmp = m / v;
	} else if (m <= 3.1e-103) {
		tmp = -1.0;
	} else {
		tmp = m + (m / v);
	}
	return tmp;
}
real(8) function code(m, v)
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    real(8) :: tmp
    if (m <= 2.1d-164) then
        tmp = -1.0d0
    else if (m <= 4.5d-129) then
        tmp = m / v
    else if (m <= 3.1d-103) then
        tmp = -1.0d0
    else
        tmp = m + (m / v)
    end if
    code = tmp
end function
public static double code(double m, double v) {
	double tmp;
	if (m <= 2.1e-164) {
		tmp = -1.0;
	} else if (m <= 4.5e-129) {
		tmp = m / v;
	} else if (m <= 3.1e-103) {
		tmp = -1.0;
	} else {
		tmp = m + (m / v);
	}
	return tmp;
}
def code(m, v):
	tmp = 0
	if m <= 2.1e-164:
		tmp = -1.0
	elif m <= 4.5e-129:
		tmp = m / v
	elif m <= 3.1e-103:
		tmp = -1.0
	else:
		tmp = m + (m / v)
	return tmp
function code(m, v)
	tmp = 0.0
	if (m <= 2.1e-164)
		tmp = -1.0;
	elseif (m <= 4.5e-129)
		tmp = Float64(m / v);
	elseif (m <= 3.1e-103)
		tmp = -1.0;
	else
		tmp = Float64(m + Float64(m / v));
	end
	return tmp
end
function tmp_2 = code(m, v)
	tmp = 0.0;
	if (m <= 2.1e-164)
		tmp = -1.0;
	elseif (m <= 4.5e-129)
		tmp = m / v;
	elseif (m <= 3.1e-103)
		tmp = -1.0;
	else
		tmp = m + (m / v);
	end
	tmp_2 = tmp;
end
code[m_, v_] := If[LessEqual[m, 2.1e-164], -1.0, If[LessEqual[m, 4.5e-129], N[(m / v), $MachinePrecision], If[LessEqual[m, 3.1e-103], -1.0, N[(m + N[(m / v), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;m \leq 2.1 \cdot 10^{-164}:\\
\;\;\;\;-1\\

\mathbf{elif}\;m \leq 4.5 \cdot 10^{-129}:\\
\;\;\;\;\frac{m}{v}\\

\mathbf{elif}\;m \leq 3.1 \cdot 10^{-103}:\\
\;\;\;\;-1\\

\mathbf{else}:\\
\;\;\;\;m + \frac{m}{v}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if m < 2.0999999999999999e-164 or 4.50000000000000031e-129 < m < 3.1000000000000001e-103

    1. Initial program 100.0%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg100.0%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in m around 0 86.8%

      \[\leadsto \color{blue}{-1} \]

    if 2.0999999999999999e-164 < m < 4.50000000000000031e-129

    1. Initial program 100.0%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg100.0%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in v around 0 70.5%

      \[\leadsto \color{blue}{\frac{m \cdot {\left(1 - m\right)}^{2}}{v}} \]
    6. Step-by-step derivation
      1. associate-*l/70.5%

        \[\leadsto \color{blue}{\frac{m}{v} \cdot {\left(1 - m\right)}^{2}} \]
    7. Simplified70.5%

      \[\leadsto \color{blue}{\frac{m}{v} \cdot {\left(1 - m\right)}^{2}} \]
    8. Step-by-step derivation
      1. associate-*l/70.5%

        \[\leadsto \color{blue}{\frac{m \cdot {\left(1 - m\right)}^{2}}{v}} \]
      2. unpow270.5%

        \[\leadsto \frac{m \cdot \color{blue}{\left(\left(1 - m\right) \cdot \left(1 - m\right)\right)}}{v} \]
      3. associate-*r*70.5%

        \[\leadsto \frac{\color{blue}{\left(m \cdot \left(1 - m\right)\right) \cdot \left(1 - m\right)}}{v} \]
      4. /-rgt-identity70.5%

        \[\leadsto \frac{\left(\color{blue}{\frac{m}{1}} \cdot \left(1 - m\right)\right) \cdot \left(1 - m\right)}{v} \]
      5. associate-/r/70.5%

        \[\leadsto \frac{\color{blue}{\frac{m}{\frac{1}{1 - m}}} \cdot \left(1 - m\right)}{v} \]
      6. associate-*l/70.5%

        \[\leadsto \color{blue}{\frac{\frac{m}{\frac{1}{1 - m}}}{v} \cdot \left(1 - m\right)} \]
      7. *-un-lft-identity70.5%

        \[\leadsto \frac{\color{blue}{1 \cdot \frac{m}{\frac{1}{1 - m}}}}{v} \cdot \left(1 - m\right) \]
      8. associate-*l/69.9%

        \[\leadsto \color{blue}{\left(\frac{1}{v} \cdot \frac{m}{\frac{1}{1 - m}}\right)} \cdot \left(1 - m\right) \]
      9. *-commutative69.9%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{1}{v} \cdot \frac{m}{\frac{1}{1 - m}}\right)} \]
      10. associate-*l/70.5%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\frac{1 \cdot \frac{m}{\frac{1}{1 - m}}}{v}} \]
      11. *-un-lft-identity70.5%

        \[\leadsto \left(1 - m\right) \cdot \frac{\color{blue}{\frac{m}{\frac{1}{1 - m}}}}{v} \]
      12. associate-*r/70.5%

        \[\leadsto \color{blue}{\frac{\left(1 - m\right) \cdot \frac{m}{\frac{1}{1 - m}}}{v}} \]
      13. associate-/r/70.5%

        \[\leadsto \frac{\left(1 - m\right) \cdot \color{blue}{\left(\frac{m}{1} \cdot \left(1 - m\right)\right)}}{v} \]
      14. /-rgt-identity70.5%

        \[\leadsto \frac{\left(1 - m\right) \cdot \left(\color{blue}{m} \cdot \left(1 - m\right)\right)}{v} \]
    9. Applied egg-rr70.5%

      \[\leadsto \color{blue}{\frac{\left(1 - m\right) \cdot \left(m \cdot \left(1 - m\right)\right)}{v}} \]
    10. Taylor expanded in m around 0 70.5%

      \[\leadsto \frac{\color{blue}{m}}{v} \]

    if 3.1000000000000001e-103 < m

    1. Initial program 99.9%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative99.9%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg99.9%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in m around 0 66.6%

      \[\leadsto \color{blue}{m \cdot \left(1 + \frac{1}{v}\right) - 1} \]
    6. Step-by-step derivation
      1. +-commutative66.6%

        \[\leadsto m \cdot \color{blue}{\left(\frac{1}{v} + 1\right)} - 1 \]
      2. distribute-lft-in66.6%

        \[\leadsto \color{blue}{\left(m \cdot \frac{1}{v} + m \cdot 1\right)} - 1 \]
      3. div-inv66.7%

        \[\leadsto \left(\color{blue}{\frac{m}{v}} + m \cdot 1\right) - 1 \]
      4. *-rgt-identity66.7%

        \[\leadsto \left(\frac{m}{v} + \color{blue}{m}\right) - 1 \]
    7. Applied egg-rr66.7%

      \[\leadsto \color{blue}{\left(\frac{m}{v} + m\right)} - 1 \]
    8. Taylor expanded in m around inf 63.4%

      \[\leadsto \color{blue}{m \cdot \left(1 + \frac{1}{v}\right)} \]
    9. Step-by-step derivation
      1. distribute-rgt-in63.4%

        \[\leadsto \color{blue}{1 \cdot m + \frac{1}{v} \cdot m} \]
      2. *-lft-identity63.4%

        \[\leadsto \color{blue}{m} + \frac{1}{v} \cdot m \]
      3. associate-*l/63.5%

        \[\leadsto m + \color{blue}{\frac{1 \cdot m}{v}} \]
      4. *-lft-identity63.5%

        \[\leadsto m + \frac{\color{blue}{m}}{v} \]
    10. Simplified63.5%

      \[\leadsto \color{blue}{m + \frac{m}{v}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification69.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;m \leq 2.1 \cdot 10^{-164}:\\ \;\;\;\;-1\\ \mathbf{elif}\;m \leq 4.5 \cdot 10^{-129}:\\ \;\;\;\;\frac{m}{v}\\ \mathbf{elif}\;m \leq 3.1 \cdot 10^{-103}:\\ \;\;\;\;-1\\ \mathbf{else}:\\ \;\;\;\;m + \frac{m}{v}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 98.5% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 1.6:\\ \;\;\;\;\left(1 - m\right) \cdot \left(-1 + \frac{m}{v}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{m}{v} \cdot \left(m \cdot \left(m + -2\right)\right)\\ \end{array} \end{array} \]
(FPCore (m v)
 :precision binary64
 (if (<= m 1.6) (* (- 1.0 m) (+ -1.0 (/ m v))) (* (/ m v) (* m (+ m -2.0)))))
double code(double m, double v) {
	double tmp;
	if (m <= 1.6) {
		tmp = (1.0 - m) * (-1.0 + (m / v));
	} else {
		tmp = (m / v) * (m * (m + -2.0));
	}
	return tmp;
}
real(8) function code(m, v)
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    real(8) :: tmp
    if (m <= 1.6d0) then
        tmp = (1.0d0 - m) * ((-1.0d0) + (m / v))
    else
        tmp = (m / v) * (m * (m + (-2.0d0)))
    end if
    code = tmp
end function
public static double code(double m, double v) {
	double tmp;
	if (m <= 1.6) {
		tmp = (1.0 - m) * (-1.0 + (m / v));
	} else {
		tmp = (m / v) * (m * (m + -2.0));
	}
	return tmp;
}
def code(m, v):
	tmp = 0
	if m <= 1.6:
		tmp = (1.0 - m) * (-1.0 + (m / v))
	else:
		tmp = (m / v) * (m * (m + -2.0))
	return tmp
function code(m, v)
	tmp = 0.0
	if (m <= 1.6)
		tmp = Float64(Float64(1.0 - m) * Float64(-1.0 + Float64(m / v)));
	else
		tmp = Float64(Float64(m / v) * Float64(m * Float64(m + -2.0)));
	end
	return tmp
end
function tmp_2 = code(m, v)
	tmp = 0.0;
	if (m <= 1.6)
		tmp = (1.0 - m) * (-1.0 + (m / v));
	else
		tmp = (m / v) * (m * (m + -2.0));
	end
	tmp_2 = tmp;
end
code[m_, v_] := If[LessEqual[m, 1.6], N[(N[(1.0 - m), $MachinePrecision] * N[(-1.0 + N[(m / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(m / v), $MachinePrecision] * N[(m * N[(m + -2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;m \leq 1.6:\\
\;\;\;\;\left(1 - m\right) \cdot \left(-1 + \frac{m}{v}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{m}{v} \cdot \left(m \cdot \left(m + -2\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if m < 1.6000000000000001

    1. Initial program 100.0%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg100.0%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in m around 0 98.7%

      \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m}{v} - 1\right)} \]

    if 1.6000000000000001 < m

    1. Initial program 99.9%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative99.9%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg99.9%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in v around 0 99.9%

      \[\leadsto \color{blue}{\frac{m \cdot {\left(1 - m\right)}^{2}}{v}} \]
    6. Step-by-step derivation
      1. associate-*l/99.9%

        \[\leadsto \color{blue}{\frac{m}{v} \cdot {\left(1 - m\right)}^{2}} \]
    7. Simplified99.9%

      \[\leadsto \color{blue}{\frac{m}{v} \cdot {\left(1 - m\right)}^{2}} \]
    8. Taylor expanded in m around inf 98.4%

      \[\leadsto \frac{m}{v} \cdot \color{blue}{\left(-2 \cdot m + {m}^{2}\right)} \]
    9. Step-by-step derivation
      1. +-commutative98.4%

        \[\leadsto \frac{m}{v} \cdot \color{blue}{\left({m}^{2} + -2 \cdot m\right)} \]
      2. unpow298.4%

        \[\leadsto \frac{m}{v} \cdot \left(\color{blue}{m \cdot m} + -2 \cdot m\right) \]
      3. distribute-rgt-out98.4%

        \[\leadsto \frac{m}{v} \cdot \color{blue}{\left(m \cdot \left(m + -2\right)\right)} \]
    10. Simplified98.4%

      \[\leadsto \frac{m}{v} \cdot \color{blue}{\left(m \cdot \left(m + -2\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification98.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;m \leq 1.6:\\ \;\;\;\;\left(1 - m\right) \cdot \left(-1 + \frac{m}{v}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{m}{v} \cdot \left(m \cdot \left(m + -2\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 60.8% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 8.8 \cdot 10^{-166}:\\ \;\;\;\;-1\\ \mathbf{elif}\;m \leq 9.8 \cdot 10^{-129} \lor \neg \left(m \leq 3.1 \cdot 10^{-103}\right):\\ \;\;\;\;\frac{m}{v}\\ \mathbf{else}:\\ \;\;\;\;-1\\ \end{array} \end{array} \]
(FPCore (m v)
 :precision binary64
 (if (<= m 8.8e-166)
   -1.0
   (if (or (<= m 9.8e-129) (not (<= m 3.1e-103))) (/ m v) -1.0)))
double code(double m, double v) {
	double tmp;
	if (m <= 8.8e-166) {
		tmp = -1.0;
	} else if ((m <= 9.8e-129) || !(m <= 3.1e-103)) {
		tmp = m / v;
	} else {
		tmp = -1.0;
	}
	return tmp;
}
real(8) function code(m, v)
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    real(8) :: tmp
    if (m <= 8.8d-166) then
        tmp = -1.0d0
    else if ((m <= 9.8d-129) .or. (.not. (m <= 3.1d-103))) then
        tmp = m / v
    else
        tmp = -1.0d0
    end if
    code = tmp
end function
public static double code(double m, double v) {
	double tmp;
	if (m <= 8.8e-166) {
		tmp = -1.0;
	} else if ((m <= 9.8e-129) || !(m <= 3.1e-103)) {
		tmp = m / v;
	} else {
		tmp = -1.0;
	}
	return tmp;
}
def code(m, v):
	tmp = 0
	if m <= 8.8e-166:
		tmp = -1.0
	elif (m <= 9.8e-129) or not (m <= 3.1e-103):
		tmp = m / v
	else:
		tmp = -1.0
	return tmp
function code(m, v)
	tmp = 0.0
	if (m <= 8.8e-166)
		tmp = -1.0;
	elseif ((m <= 9.8e-129) || !(m <= 3.1e-103))
		tmp = Float64(m / v);
	else
		tmp = -1.0;
	end
	return tmp
end
function tmp_2 = code(m, v)
	tmp = 0.0;
	if (m <= 8.8e-166)
		tmp = -1.0;
	elseif ((m <= 9.8e-129) || ~((m <= 3.1e-103)))
		tmp = m / v;
	else
		tmp = -1.0;
	end
	tmp_2 = tmp;
end
code[m_, v_] := If[LessEqual[m, 8.8e-166], -1.0, If[Or[LessEqual[m, 9.8e-129], N[Not[LessEqual[m, 3.1e-103]], $MachinePrecision]], N[(m / v), $MachinePrecision], -1.0]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;m \leq 8.8 \cdot 10^{-166}:\\
\;\;\;\;-1\\

\mathbf{elif}\;m \leq 9.8 \cdot 10^{-129} \lor \neg \left(m \leq 3.1 \cdot 10^{-103}\right):\\
\;\;\;\;\frac{m}{v}\\

\mathbf{else}:\\
\;\;\;\;-1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if m < 8.8000000000000005e-166 or 9.80000000000000004e-129 < m < 3.1000000000000001e-103

    1. Initial program 100.0%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg100.0%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in m around 0 86.8%

      \[\leadsto \color{blue}{-1} \]

    if 8.8000000000000005e-166 < m < 9.80000000000000004e-129 or 3.1000000000000001e-103 < m

    1. Initial program 99.9%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative99.9%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg99.9%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in v around 0 95.3%

      \[\leadsto \color{blue}{\frac{m \cdot {\left(1 - m\right)}^{2}}{v}} \]
    6. Step-by-step derivation
      1. associate-*l/95.3%

        \[\leadsto \color{blue}{\frac{m}{v} \cdot {\left(1 - m\right)}^{2}} \]
    7. Simplified95.3%

      \[\leadsto \color{blue}{\frac{m}{v} \cdot {\left(1 - m\right)}^{2}} \]
    8. Step-by-step derivation
      1. associate-*l/95.3%

        \[\leadsto \color{blue}{\frac{m \cdot {\left(1 - m\right)}^{2}}{v}} \]
      2. unpow295.3%

        \[\leadsto \frac{m \cdot \color{blue}{\left(\left(1 - m\right) \cdot \left(1 - m\right)\right)}}{v} \]
      3. associate-*r*95.3%

        \[\leadsto \frac{\color{blue}{\left(m \cdot \left(1 - m\right)\right) \cdot \left(1 - m\right)}}{v} \]
      4. /-rgt-identity95.3%

        \[\leadsto \frac{\left(\color{blue}{\frac{m}{1}} \cdot \left(1 - m\right)\right) \cdot \left(1 - m\right)}{v} \]
      5. associate-/r/95.3%

        \[\leadsto \frac{\color{blue}{\frac{m}{\frac{1}{1 - m}}} \cdot \left(1 - m\right)}{v} \]
      6. associate-*l/95.3%

        \[\leadsto \color{blue}{\frac{\frac{m}{\frac{1}{1 - m}}}{v} \cdot \left(1 - m\right)} \]
      7. *-un-lft-identity95.3%

        \[\leadsto \frac{\color{blue}{1 \cdot \frac{m}{\frac{1}{1 - m}}}}{v} \cdot \left(1 - m\right) \]
      8. associate-*l/95.2%

        \[\leadsto \color{blue}{\left(\frac{1}{v} \cdot \frac{m}{\frac{1}{1 - m}}\right)} \cdot \left(1 - m\right) \]
      9. *-commutative95.2%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{1}{v} \cdot \frac{m}{\frac{1}{1 - m}}\right)} \]
      10. associate-*l/95.3%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\frac{1 \cdot \frac{m}{\frac{1}{1 - m}}}{v}} \]
      11. *-un-lft-identity95.3%

        \[\leadsto \left(1 - m\right) \cdot \frac{\color{blue}{\frac{m}{\frac{1}{1 - m}}}}{v} \]
      12. associate-*r/95.3%

        \[\leadsto \color{blue}{\frac{\left(1 - m\right) \cdot \frac{m}{\frac{1}{1 - m}}}{v}} \]
      13. associate-/r/95.3%

        \[\leadsto \frac{\left(1 - m\right) \cdot \color{blue}{\left(\frac{m}{1} \cdot \left(1 - m\right)\right)}}{v} \]
      14. /-rgt-identity95.3%

        \[\leadsto \frac{\left(1 - m\right) \cdot \left(\color{blue}{m} \cdot \left(1 - m\right)\right)}{v} \]
    9. Applied egg-rr95.3%

      \[\leadsto \color{blue}{\frac{\left(1 - m\right) \cdot \left(m \cdot \left(1 - m\right)\right)}{v}} \]
    10. Taylor expanded in m around 0 63.8%

      \[\leadsto \frac{\color{blue}{m}}{v} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification69.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;m \leq 8.8 \cdot 10^{-166}:\\ \;\;\;\;-1\\ \mathbf{elif}\;m \leq 9.8 \cdot 10^{-129} \lor \neg \left(m \leq 3.1 \cdot 10^{-103}\right):\\ \;\;\;\;\frac{m}{v}\\ \mathbf{else}:\\ \;\;\;\;-1\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 75.5% accurate, 1.9× speedup?

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

\\
-1 + \left(m + \frac{m}{v}\right)
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
  2. Step-by-step derivation
    1. *-commutative99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
    2. sub-neg99.9%

      \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
    3. associate-/l*99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
    4. metadata-eval99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in m around 0 76.2%

    \[\leadsto \color{blue}{m \cdot \left(1 + \frac{1}{v}\right) - 1} \]
  6. Step-by-step derivation
    1. +-commutative76.2%

      \[\leadsto m \cdot \color{blue}{\left(\frac{1}{v} + 1\right)} - 1 \]
    2. distribute-lft-in76.2%

      \[\leadsto \color{blue}{\left(m \cdot \frac{1}{v} + m \cdot 1\right)} - 1 \]
    3. div-inv76.3%

      \[\leadsto \left(\color{blue}{\frac{m}{v}} + m \cdot 1\right) - 1 \]
    4. *-rgt-identity76.3%

      \[\leadsto \left(\frac{m}{v} + \color{blue}{m}\right) - 1 \]
  7. Applied egg-rr76.3%

    \[\leadsto \color{blue}{\left(\frac{m}{v} + m\right)} - 1 \]
  8. Final simplification76.3%

    \[\leadsto -1 + \left(m + \frac{m}{v}\right) \]
  9. Add Preprocessing

Alternative 9: 27.1% accurate, 4.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 9 \cdot 10^{-45}:\\ \;\;\;\;-1\\ \mathbf{else}:\\ \;\;\;\;m\\ \end{array} \end{array} \]
(FPCore (m v) :precision binary64 (if (<= m 9e-45) -1.0 m))
double code(double m, double v) {
	double tmp;
	if (m <= 9e-45) {
		tmp = -1.0;
	} else {
		tmp = m;
	}
	return tmp;
}
real(8) function code(m, v)
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    real(8) :: tmp
    if (m <= 9d-45) then
        tmp = -1.0d0
    else
        tmp = m
    end if
    code = tmp
end function
public static double code(double m, double v) {
	double tmp;
	if (m <= 9e-45) {
		tmp = -1.0;
	} else {
		tmp = m;
	}
	return tmp;
}
def code(m, v):
	tmp = 0
	if m <= 9e-45:
		tmp = -1.0
	else:
		tmp = m
	return tmp
function code(m, v)
	tmp = 0.0
	if (m <= 9e-45)
		tmp = -1.0;
	else
		tmp = m;
	end
	return tmp
end
function tmp_2 = code(m, v)
	tmp = 0.0;
	if (m <= 9e-45)
		tmp = -1.0;
	else
		tmp = m;
	end
	tmp_2 = tmp;
end
code[m_, v_] := If[LessEqual[m, 9e-45], -1.0, m]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;m \leq 9 \cdot 10^{-45}:\\
\;\;\;\;-1\\

\mathbf{else}:\\
\;\;\;\;m\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if m < 8.9999999999999997e-45

    1. Initial program 100.0%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg100.0%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval100.0%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in m around 0 63.8%

      \[\leadsto \color{blue}{-1} \]

    if 8.9999999999999997e-45 < m

    1. Initial program 99.9%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
    2. Step-by-step derivation
      1. *-commutative99.9%

        \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
      2. sub-neg99.9%

        \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
      3. associate-/l*99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
      4. metadata-eval99.9%

        \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in m around 0 61.1%

      \[\leadsto \color{blue}{m \cdot \left(1 + \frac{1}{v}\right) - 1} \]
    6. Taylor expanded in m around inf 61.1%

      \[\leadsto \color{blue}{m \cdot \left(1 + \frac{1}{v}\right)} \]
    7. Taylor expanded in v around inf 5.7%

      \[\leadsto \color{blue}{m} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification28.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;m \leq 9 \cdot 10^{-45}:\\ \;\;\;\;-1\\ \mathbf{else}:\\ \;\;\;\;m\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 27.4% accurate, 4.3× speedup?

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

\\
m + -1
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
  2. Step-by-step derivation
    1. *-commutative99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
    2. sub-neg99.9%

      \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
    3. associate-/l*99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
    4. metadata-eval99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in v around inf 28.2%

    \[\leadsto \color{blue}{-1 \cdot \left(1 - m\right)} \]
  6. Step-by-step derivation
    1. neg-mul-128.2%

      \[\leadsto \color{blue}{-\left(1 - m\right)} \]
    2. neg-sub028.2%

      \[\leadsto \color{blue}{0 - \left(1 - m\right)} \]
    3. associate--r-28.2%

      \[\leadsto \color{blue}{\left(0 - 1\right) + m} \]
    4. metadata-eval28.2%

      \[\leadsto \color{blue}{-1} + m \]
  7. Simplified28.2%

    \[\leadsto \color{blue}{-1 + m} \]
  8. Final simplification28.2%

    \[\leadsto m + -1 \]
  9. Add Preprocessing

Alternative 11: 25.0% accurate, 13.0× speedup?

\[\begin{array}{l} \\ -1 \end{array} \]
(FPCore (m v) :precision binary64 -1.0)
double code(double m, double v) {
	return -1.0;
}
real(8) function code(m, v)
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    code = -1.0d0
end function
public static double code(double m, double v) {
	return -1.0;
}
def code(m, v):
	return -1.0
function code(m, v)
	return -1.0
end
function tmp = code(m, v)
	tmp = -1.0;
end
code[m_, v_] := -1.0
\begin{array}{l}

\\
-1
\end{array}
Derivation
  1. Initial program 99.9%

    \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot \left(1 - m\right) \]
  2. Step-by-step derivation
    1. *-commutative99.9%

      \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right)} \]
    2. sub-neg99.9%

      \[\leadsto \left(1 - m\right) \cdot \color{blue}{\left(\frac{m \cdot \left(1 - m\right)}{v} + \left(-1\right)\right)} \]
    3. associate-/l*99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\color{blue}{\frac{m}{\frac{v}{1 - m}}} + \left(-1\right)\right) \]
    4. metadata-eval99.9%

      \[\leadsto \left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + \color{blue}{-1}\right) \]
  3. Simplified99.9%

    \[\leadsto \color{blue}{\left(1 - m\right) \cdot \left(\frac{m}{\frac{v}{1 - m}} + -1\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in m around 0 25.4%

    \[\leadsto \color{blue}{-1} \]
  6. Final simplification25.4%

    \[\leadsto -1 \]
  7. Add Preprocessing

Reproduce

?
herbie shell --seed 2024011 
(FPCore (m v)
  :name "b parameter of renormalized beta distribution"
  :precision binary64
  :pre (and (and (< 0.0 m) (< 0.0 v)) (< v 0.25))
  (* (- (/ (* m (- 1.0 m)) v) 1.0) (- 1.0 m)))