a parameter of renormalized beta distribution

Percentage Accurate: 99.8% → 99.9%

Time: 5.6s

Alternatives: 14

Speedup: 1.0×

• 41.6% of points produce a very large (infinite) output. You may want to add a precondition.

Specification

\[\left(0 < m \land 0 < v\right) \land v < 0.25\]

Math

\[\begin{array}{l} \\ \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \end{array} \]

FPCore

(FPCore (m v) :precision binary64 (* (- (/ (* m (- 1.0 m)) v) 1.0) m))

C

double code(double m, double v) {
	return (((m * (1.0 - m)) / v) - 1.0) * m;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(m, v)
use fmin_fmax_functions
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    code = (((m * (1.0d0 - m)) / v) - 1.0d0) * m
end function

Java

public static double code(double m, double v) {
	return (((m * (1.0 - m)) / v) - 1.0) * m;
}

Python

def code(m, v):
	return (((m * (1.0 - m)) / v) - 1.0) * m

Julia

function code(m, v)
	return Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * m)
end

MATLAB

function tmp = code(m, v)
	tmp = (((m * (1.0 - m)) / v) - 1.0) * m;
end

Wolfram

code[m_, v_] := N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * m), $MachinePrecision]

Initial Program: 99.8% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \end{array} \]

FPCore

(FPCore (m v) :precision binary64 (* (- (/ (* m (- 1.0 m)) v) 1.0) m))

C

double code(double m, double v) {
	return (((m * (1.0 - m)) / v) - 1.0) * m;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(m, v)
use fmin_fmax_functions
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    code = (((m * (1.0d0 - m)) / v) - 1.0d0) * m
end function

Java

public static double code(double m, double v) {
	return (((m * (1.0 - m)) / v) - 1.0) * m;
}

Python

def code(m, v):
	return (((m * (1.0 - m)) / v) - 1.0) * m

Julia

function code(m, v)
	return Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * m)
end

MATLAB

function tmp = code(m, v)
	tmp = (((m * (1.0 - m)) / v) - 1.0) * m;
end

Wolfram

code[m_, v_] := N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * m), $MachinePrecision]

Alternative 1: 99.9% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \mathsf{fma}\left(\frac{\left(1 - m\right) \cdot m}{v}, m, -m\right) \end{array} \]

FPCore

(FPCore (m v) :precision binary64 (fma (/ (* (- 1.0 m) m) v) m (- m)))

C

double code(double m, double v) {
	return fma((((1.0 - m) * m) / v), m, -m);
}

Julia

function code(m, v)
	return fma(Float64(Float64(Float64(1.0 - m) * m) / v), m, Float64(-m))
end

Wolfram

code[m_, v_] := N[(N[(N[(N[(1.0 - m), $MachinePrecision] * m), $MachinePrecision] / v), $MachinePrecision] * m + (-m)), $MachinePrecision]

Derivation

1. Initial program 99.9%

   \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \]
2. Add Preprocessing
3. Step-by-step derivation

   1. lift-/.f64 N/A

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

   2. lift-*.f64 N/A

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

   3. *-commutative N/A

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

   4. associate-/l* N/A

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

   5. *-commutative N/A

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

   6. lower-*.f64 N/A

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

   7. lower-/.f64 99.9

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

4. Applied rewrites 99.9%

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

5. Taylor expanded in v around inf

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

   1. +-commutative N/A

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

   2. fp-cancel-sign-sub-inv N/A

      \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} - \left(\mathsf{neg}\left(-1\right)\right) \cdot m} \]

   3. metadata-eval N/A

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

   4. *-commutative N/A

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

   5. fp-cancel-sub-sign-inv N/A

      \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} + \left(\mathsf{neg}\left(m\right)\right) \cdot 1} \]

7. Applied rewrites 99.9%

   \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{\left(1 - m\right) \cdot m}{v}, m, -m\right)} \]
8. Add Preprocessing

Alternative 2: 86.1% accurate, 0.3× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m\\ \mathbf{if}\;t\_0 \leq -2 \cdot 10^{+28}:\\ \;\;\;\;\frac{-m}{v} \cdot m\\ \mathbf{elif}\;t\_0 \leq -5 \cdot 10^{-308}:\\ \;\;\;\;-m\\ \mathbf{else}:\\ \;\;\;\;\frac{m}{v} \cdot m\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (let* ((t_0 (* (- (/ (* m (- 1.0 m)) v) 1.0) m)))
   (if (<= t_0 -2e+28)
     (* (/ (- m) v) m)
     (if (<= t_0 -5e-308) (- m) (* (/ m v) m)))))

C

double code(double m, double v) {
	double t_0 = (((m * (1.0 - m)) / v) - 1.0) * m;
	double tmp;
	if (t_0 <= -2e+28) {
		tmp = (-m / v) * m;
	} else if (t_0 <= -5e-308) {
		tmp = -m;
	} else {
		tmp = (m / v) * m;
	}
	return tmp;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(m, v)
use fmin_fmax_functions
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    real(8) :: t_0
    real(8) :: tmp
    t_0 = (((m * (1.0d0 - m)) / v) - 1.0d0) * m
    if (t_0 <= (-2d+28)) then
        tmp = (-m / v) * m
    else if (t_0 <= (-5d-308)) then
        tmp = -m
    else
        tmp = (m / v) * m
    end if
    code = tmp
end function

Java

public static double code(double m, double v) {
	double t_0 = (((m * (1.0 - m)) / v) - 1.0) * m;
	double tmp;
	if (t_0 <= -2e+28) {
		tmp = (-m / v) * m;
	} else if (t_0 <= -5e-308) {
		tmp = -m;
	} else {
		tmp = (m / v) * m;
	}
	return tmp;
}

Python

def code(m, v):
	t_0 = (((m * (1.0 - m)) / v) - 1.0) * m
	tmp = 0
	if t_0 <= -2e+28:
		tmp = (-m / v) * m
	elif t_0 <= -5e-308:
		tmp = -m
	else:
		tmp = (m / v) * m
	return tmp

Julia

function code(m, v)
	t_0 = Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * m)
	tmp = 0.0
	if (t_0 <= -2e+28)
		tmp = Float64(Float64(Float64(-m) / v) * m);
	elseif (t_0 <= -5e-308)
		tmp = Float64(-m);
	else
		tmp = Float64(Float64(m / v) * m);
	end
	return tmp
end

MATLAB

function tmp_2 = code(m, v)
	t_0 = (((m * (1.0 - m)) / v) - 1.0) * m;
	tmp = 0.0;
	if (t_0 <= -2e+28)
		tmp = (-m / v) * m;
	elseif (t_0 <= -5e-308)
		tmp = -m;
	else
		tmp = (m / v) * m;
	end
	tmp_2 = tmp;
end

Wolfram

code[m_, v_] := Block[{t$95$0 = N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * m), $MachinePrecision]}, If[LessEqual[t$95$0, -2e+28], N[(N[((-m) / v), $MachinePrecision] * m), $MachinePrecision], If[LessEqual[t$95$0, -5e-308], (-m), N[(N[(m / v), $MachinePrecision] * m), $MachinePrecision]]]]

Derivation

1. Split input into 3 regimes

2. if (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m) < -1.99999999999999992e28

   1. Initial program 99.9%

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

   3. Taylor expanded in v around 0

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

      1. associate-/l* N/A

         \[\leadsto \color{blue}{{m}^{2} \cdot \frac{1 - m}{v}} \]

      2. *-commutative N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      3. lower-*.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      4. lower-/.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v}} \cdot {m}^{2} \]

      5. lower--.f64 N/A

         \[\leadsto \frac{\color{blue}{1 - m}}{v} \cdot {m}^{2} \]

      6. unpow2 N/A

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

      7. lower-*.f64 99.9

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

   5. Applied rewrites 99.9%

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

   7. Applied rewrites 97.8%

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

   8. Taylor expanded in m around 0

      \[\leadsto -1 \cdot \color{blue}{\frac{{m}^{2}}{v}} \]
   9. Step-by-step derivation

   10. Applied rewrites 76.6%

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

   if -1.99999999999999992e28 < (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m) < -4.99999999999999955e-308

   1. Initial program 100.0%

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

   3. Taylor expanded in m around 0

      \[\leadsto \color{blue}{-1 \cdot m} \]
   4. Step-by-step derivation

      1. mul-1-neg N/A

         \[\leadsto \color{blue}{\mathsf{neg}\left(m\right)} \]

      2. lower-neg.f64 96.1

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

   5. Applied rewrites 96.1%

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

   if -4.99999999999999955e-308 < (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m)

   1. Initial program 99.7%

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

   3. Taylor expanded in v around 0

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

      1. associate-/l* N/A

         \[\leadsto \color{blue}{{m}^{2} \cdot \frac{1 - m}{v}} \]

      2. *-commutative N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      3. lower-*.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      4. lower-/.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v}} \cdot {m}^{2} \]

      5. lower--.f64 N/A

         \[\leadsto \frac{\color{blue}{1 - m}}{v} \cdot {m}^{2} \]

      6. unpow2 N/A

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

      7. lower-*.f64 84.2

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

   5. Applied rewrites 84.2%

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

   6. Taylor expanded in m around 0

      \[\leadsto \frac{{m}^{2}}{\color{blue}{v}} \]
   7. Step-by-step derivation

   8. Applied rewrites 91.4%

      \[\leadsto \frac{m}{v} \cdot \color{blue}{m} \]
3. Recombined 3 regimes into one program.

4. Final simplification 84.5%

   \[\leadsto \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -2 \cdot 10^{+28}:\\ \;\;\;\;\frac{-m}{v} \cdot m\\ \mathbf{elif}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -5 \cdot 10^{-308}:\\ \;\;\;\;-m\\ \mathbf{else}:\\ \;\;\;\;\frac{m}{v} \cdot m\\ \end{array} \]
5. Add Preprocessing

Alternative 3: 73.2% accurate, 0.3× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m\\ \mathbf{if}\;t\_0 \leq -5 \cdot 10^{+291}:\\ \;\;\;\;-\sqrt{m \cdot m}\\ \mathbf{elif}\;t\_0 \leq -5 \cdot 10^{-308}:\\ \;\;\;\;-m\\ \mathbf{else}:\\ \;\;\;\;\frac{m}{v} \cdot m\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (let* ((t_0 (* (- (/ (* m (- 1.0 m)) v) 1.0) m)))
   (if (<= t_0 -5e+291)
     (- (sqrt (* m m)))
     (if (<= t_0 -5e-308) (- m) (* (/ m v) m)))))

C

double code(double m, double v) {
	double t_0 = (((m * (1.0 - m)) / v) - 1.0) * m;
	double tmp;
	if (t_0 <= -5e+291) {
		tmp = -sqrt((m * m));
	} else if (t_0 <= -5e-308) {
		tmp = -m;
	} else {
		tmp = (m / v) * m;
	}
	return tmp;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(m, v)
use fmin_fmax_functions
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    real(8) :: t_0
    real(8) :: tmp
    t_0 = (((m * (1.0d0 - m)) / v) - 1.0d0) * m
    if (t_0 <= (-5d+291)) then
        tmp = -sqrt((m * m))
    else if (t_0 <= (-5d-308)) then
        tmp = -m
    else
        tmp = (m / v) * m
    end if
    code = tmp
end function

Java

public static double code(double m, double v) {
	double t_0 = (((m * (1.0 - m)) / v) - 1.0) * m;
	double tmp;
	if (t_0 <= -5e+291) {
		tmp = -Math.sqrt((m * m));
	} else if (t_0 <= -5e-308) {
		tmp = -m;
	} else {
		tmp = (m / v) * m;
	}
	return tmp;
}

Python

def code(m, v):
	t_0 = (((m * (1.0 - m)) / v) - 1.0) * m
	tmp = 0
	if t_0 <= -5e+291:
		tmp = -math.sqrt((m * m))
	elif t_0 <= -5e-308:
		tmp = -m
	else:
		tmp = (m / v) * m
	return tmp

Julia

function code(m, v)
	t_0 = Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * m)
	tmp = 0.0
	if (t_0 <= -5e+291)
		tmp = Float64(-sqrt(Float64(m * m)));
	elseif (t_0 <= -5e-308)
		tmp = Float64(-m);
	else
		tmp = Float64(Float64(m / v) * m);
	end
	return tmp
end

MATLAB

function tmp_2 = code(m, v)
	t_0 = (((m * (1.0 - m)) / v) - 1.0) * m;
	tmp = 0.0;
	if (t_0 <= -5e+291)
		tmp = -sqrt((m * m));
	elseif (t_0 <= -5e-308)
		tmp = -m;
	else
		tmp = (m / v) * m;
	end
	tmp_2 = tmp;
end

Wolfram

code[m_, v_] := Block[{t$95$0 = N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * m), $MachinePrecision]}, If[LessEqual[t$95$0, -5e+291], (-N[Sqrt[N[(m * m), $MachinePrecision]], $MachinePrecision]), If[LessEqual[t$95$0, -5e-308], (-m), N[(N[(m / v), $MachinePrecision] * m), $MachinePrecision]]]]

Derivation

1. Split input into 3 regimes

2. if (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m) < -5.0000000000000001e291

   1. Initial program 100.0%

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

   3. Taylor expanded in m around 0

      \[\leadsto \color{blue}{-1 \cdot m} \]
   4. Step-by-step derivation

      1. mul-1-neg N/A

         \[\leadsto \color{blue}{\mathsf{neg}\left(m\right)} \]

      2. lower-neg.f64 6.0

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

   5. Applied rewrites 6.0%

      \[\leadsto \color{blue}{-m} \]
   6. Step-by-step derivation

   7. Applied rewrites 69.8%

      \[\leadsto -\sqrt{m \cdot m} \]

   if -5.0000000000000001e291 < (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m) < -4.99999999999999955e-308

   1. Initial program 99.9%

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

   3. Taylor expanded in m around 0

      \[\leadsto \color{blue}{-1 \cdot m} \]
   4. Step-by-step derivation

      1. mul-1-neg N/A

         \[\leadsto \color{blue}{\mathsf{neg}\left(m\right)} \]

      2. lower-neg.f64 64.2

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

   5. Applied rewrites 64.2%

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

   if -4.99999999999999955e-308 < (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m)

   1. Initial program 99.7%

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

   3. Taylor expanded in v around 0

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

      1. associate-/l* N/A

         \[\leadsto \color{blue}{{m}^{2} \cdot \frac{1 - m}{v}} \]

      2. *-commutative N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      3. lower-*.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      4. lower-/.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v}} \cdot {m}^{2} \]

      5. lower--.f64 N/A

         \[\leadsto \frac{\color{blue}{1 - m}}{v} \cdot {m}^{2} \]

      6. unpow2 N/A

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

      7. lower-*.f64 84.2

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

   5. Applied rewrites 84.2%

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

   6. Taylor expanded in m around 0

      \[\leadsto \frac{{m}^{2}}{\color{blue}{v}} \]
   7. Step-by-step derivation

   8. Applied rewrites 91.4%

      \[\leadsto \frac{m}{v} \cdot \color{blue}{m} \]
3. Recombined 3 regimes into one program.

4. Final simplification 73.5%

   \[\leadsto \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -5 \cdot 10^{+291}:\\ \;\;\;\;-\sqrt{m \cdot m}\\ \mathbf{elif}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -5 \cdot 10^{-308}:\\ \;\;\;\;-m\\ \mathbf{else}:\\ \;\;\;\;\frac{m}{v} \cdot m\\ \end{array} \]
5. Add Preprocessing

Alternative 4: 97.8% accurate, 0.5× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -2 \cdot 10^{+28}:\\ \;\;\;\;\left(\frac{-m}{v} \cdot m\right) \cdot m\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (if (<= (* (- (/ (* m (- 1.0 m)) v) 1.0) m) -2e+28)
   (* (* (/ (- m) v) m) m)
   (fma (/ m v) m (- m))))

C

double code(double m, double v) {
	double tmp;
	if (((((m * (1.0 - m)) / v) - 1.0) * m) <= -2e+28) {
		tmp = ((-m / v) * m) * m;
	} else {
		tmp = fma((m / v), m, -m);
	}
	return tmp;
}

Julia

function code(m, v)
	tmp = 0.0
	if (Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * m) <= -2e+28)
		tmp = Float64(Float64(Float64(Float64(-m) / v) * m) * m);
	else
		tmp = fma(Float64(m / v), m, Float64(-m));
	end
	return tmp
end

Wolfram

code[m_, v_] := If[LessEqual[N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * m), $MachinePrecision], -2e+28], N[(N[(N[((-m) / v), $MachinePrecision] * m), $MachinePrecision] * m), $MachinePrecision], N[(N[(m / v), $MachinePrecision] * m + (-m)), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m) < -1.99999999999999992e28

   1. Initial program 99.9%

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

   3. Taylor expanded in m around inf

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

      1. *-commutative N/A

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

      2. unpow2 N/A

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

      3. associate-/l* N/A

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

      4. associate-*r* N/A

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

      5. *-commutative N/A

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

      6. *-commutative N/A

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

      7. lower-*.f64 N/A

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

      8. associate-*r/ N/A

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

      9. lower-/.f64 N/A

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

      10. mul-1-neg N/A

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

      11. lower-neg.f64 97.9

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

   5. Applied rewrites 97.9%

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

   if -1.99999999999999992e28 < (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m)

   1. Initial program 99.8%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-/.f64 N/A

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

      2. lift-*.f64 N/A

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

      3. *-commutative N/A

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

      4. associate-/l* N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 N/A

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

      7. lower-/.f64 99.8

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

   4. Applied rewrites 99.8%

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

   5. Taylor expanded in v around inf

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

      1. +-commutative N/A

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

      2. fp-cancel-sign-sub-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} - \left(\mathsf{neg}\left(-1\right)\right) \cdot m} \]

      3. metadata-eval N/A

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

      4. *-commutative N/A

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

      5. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} + \left(\mathsf{neg}\left(m\right)\right) \cdot 1} \]

   7. Applied rewrites 99.8%

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

   8. Taylor expanded in m around 0

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

      1. distribute-lft-out-- N/A

         \[\leadsto \color{blue}{m \cdot \frac{m}{v} - m \cdot 1} \]

      2. associate-/l* N/A

         \[\leadsto \color{blue}{\frac{m \cdot m}{v}} - m \cdot 1 \]

      3. unpow2 N/A

         \[\leadsto \frac{\color{blue}{{m}^{2}}}{v} - m \cdot 1 \]

      4. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m} \]

      5. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m \cdot 1} \]

      6. metadata-eval N/A

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

      7. associate-*l* N/A

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

      8. *-commutative N/A

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

      9. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(-1 \cdot m\right)\right) \cdot -1} \]

      10. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(\color{blue}{\left(\mathsf{neg}\left(m\right)\right)}\right)\right) \cdot -1 \]

      11. remove-double-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{m} \cdot -1 \]

      12. metadata-eval N/A

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

      13. *-inverses N/A

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

      14. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{-1 \cdot v}{v}} \]

      15. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{\color{blue}{\mathsf{neg}\left(v\right)}}{v} \]

      16. distribute-frac-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\left(\mathsf{neg}\left(\frac{v}{v}\right)\right)} \]

      17. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{v}{\mathsf{neg}\left(v\right)}} \]

      18. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{v}{\color{blue}{-1 \cdot v}} \]

      19. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\frac{m \cdot v}{-1 \cdot v}} \]

      20. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \frac{m \cdot v}{\color{blue}{\mathsf{neg}\left(v\right)}} \]

      21. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\left(\mathsf{neg}\left(\frac{m \cdot v}{v}\right)\right)} \]

      22. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{-1 \cdot \frac{m \cdot v}{v}} \]

      23. associate-/l* N/A

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

      24. unpow2 N/A

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

      25. associate-/l* N/A

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

   10. Applied rewrites 95.5%

       \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{m}{v}, m, -m\right)} \]
3. Recombined 2 regimes into one program.
4. Add Preprocessing

Alternative 5: 97.8% accurate, 0.5× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -2 \cdot 10^{+28}:\\ \;\;\;\;\frac{-m}{v} \cdot \left(m \cdot m\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (if (<= (* (- (/ (* m (- 1.0 m)) v) 1.0) m) -2e+28)
   (* (/ (- m) v) (* m m))
   (fma (/ m v) m (- m))))

C

double code(double m, double v) {
	double tmp;
	if (((((m * (1.0 - m)) / v) - 1.0) * m) <= -2e+28) {
		tmp = (-m / v) * (m * m);
	} else {
		tmp = fma((m / v), m, -m);
	}
	return tmp;
}

Julia

function code(m, v)
	tmp = 0.0
	if (Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * m) <= -2e+28)
		tmp = Float64(Float64(Float64(-m) / v) * Float64(m * m));
	else
		tmp = fma(Float64(m / v), m, Float64(-m));
	end
	return tmp
end

Wolfram

code[m_, v_] := If[LessEqual[N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * m), $MachinePrecision], -2e+28], N[(N[((-m) / v), $MachinePrecision] * N[(m * m), $MachinePrecision]), $MachinePrecision], N[(N[(m / v), $MachinePrecision] * m + (-m)), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m) < -1.99999999999999992e28

   1. Initial program 99.9%

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

   3. Taylor expanded in v around 0

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

      1. associate-/l* N/A

         \[\leadsto \color{blue}{{m}^{2} \cdot \frac{1 - m}{v}} \]

      2. *-commutative N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      3. lower-*.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      4. lower-/.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v}} \cdot {m}^{2} \]

      5. lower--.f64 N/A

         \[\leadsto \frac{\color{blue}{1 - m}}{v} \cdot {m}^{2} \]

      6. unpow2 N/A

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

      7. lower-*.f64 99.9

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

   5. Applied rewrites 99.9%

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

   6. Taylor expanded in m around inf

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

   8. Applied rewrites 97.8%

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

   if -1.99999999999999992e28 < (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m)

   1. Initial program 99.8%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-/.f64 N/A

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

      2. lift-*.f64 N/A

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

      3. *-commutative N/A

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

      4. associate-/l* N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 N/A

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

      7. lower-/.f64 99.8

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

   4. Applied rewrites 99.8%

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

   5. Taylor expanded in v around inf

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

      1. +-commutative N/A

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

      2. fp-cancel-sign-sub-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} - \left(\mathsf{neg}\left(-1\right)\right) \cdot m} \]

      3. metadata-eval N/A

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

      4. *-commutative N/A

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

      5. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} + \left(\mathsf{neg}\left(m\right)\right) \cdot 1} \]

   7. Applied rewrites 99.8%

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

   8. Taylor expanded in m around 0

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

      1. distribute-lft-out-- N/A

         \[\leadsto \color{blue}{m \cdot \frac{m}{v} - m \cdot 1} \]

      2. associate-/l* N/A

         \[\leadsto \color{blue}{\frac{m \cdot m}{v}} - m \cdot 1 \]

      3. unpow2 N/A

         \[\leadsto \frac{\color{blue}{{m}^{2}}}{v} - m \cdot 1 \]

      4. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m} \]

      5. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m \cdot 1} \]

      6. metadata-eval N/A

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

      7. associate-*l* N/A

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

      8. *-commutative N/A

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

      9. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(-1 \cdot m\right)\right) \cdot -1} \]

      10. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(\color{blue}{\left(\mathsf{neg}\left(m\right)\right)}\right)\right) \cdot -1 \]

      11. remove-double-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{m} \cdot -1 \]

      12. metadata-eval N/A

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

      13. *-inverses N/A

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

      14. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{-1 \cdot v}{v}} \]

      15. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{\color{blue}{\mathsf{neg}\left(v\right)}}{v} \]

      16. distribute-frac-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\left(\mathsf{neg}\left(\frac{v}{v}\right)\right)} \]

      17. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{v}{\mathsf{neg}\left(v\right)}} \]

      18. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{v}{\color{blue}{-1 \cdot v}} \]

      19. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\frac{m \cdot v}{-1 \cdot v}} \]

      20. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \frac{m \cdot v}{\color{blue}{\mathsf{neg}\left(v\right)}} \]

      21. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\left(\mathsf{neg}\left(\frac{m \cdot v}{v}\right)\right)} \]

      22. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{-1 \cdot \frac{m \cdot v}{v}} \]

      23. associate-/l* N/A

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

      24. unpow2 N/A

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

      25. associate-/l* N/A

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

   10. Applied rewrites 95.5%

       \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{m}{v}, m, -m\right)} \]
3. Recombined 2 regimes into one program.

4. Final simplification 96.8%

   \[\leadsto \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -2 \cdot 10^{+28}:\\ \;\;\;\;\frac{-m}{v} \cdot \left(m \cdot m\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \end{array} \]
5. Add Preprocessing

Alternative 6: 88.2% accurate, 0.5× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -2 \cdot 10^{+28}:\\ \;\;\;\;\frac{-m}{v} \cdot m\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (if (<= (* (- (/ (* m (- 1.0 m)) v) 1.0) m) -2e+28)
   (* (/ (- m) v) m)
   (fma (/ m v) m (- m))))

C

double code(double m, double v) {
	double tmp;
	if (((((m * (1.0 - m)) / v) - 1.0) * m) <= -2e+28) {
		tmp = (-m / v) * m;
	} else {
		tmp = fma((m / v), m, -m);
	}
	return tmp;
}

Julia

function code(m, v)
	tmp = 0.0
	if (Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * m) <= -2e+28)
		tmp = Float64(Float64(Float64(-m) / v) * m);
	else
		tmp = fma(Float64(m / v), m, Float64(-m));
	end
	return tmp
end

Wolfram

code[m_, v_] := If[LessEqual[N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * m), $MachinePrecision], -2e+28], N[(N[((-m) / v), $MachinePrecision] * m), $MachinePrecision], N[(N[(m / v), $MachinePrecision] * m + (-m)), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m) < -1.99999999999999992e28

   1. Initial program 99.9%

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

   3. Taylor expanded in v around 0

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

      1. associate-/l* N/A

         \[\leadsto \color{blue}{{m}^{2} \cdot \frac{1 - m}{v}} \]

      2. *-commutative N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      3. lower-*.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      4. lower-/.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v}} \cdot {m}^{2} \]

      5. lower--.f64 N/A

         \[\leadsto \frac{\color{blue}{1 - m}}{v} \cdot {m}^{2} \]

      6. unpow2 N/A

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

      7. lower-*.f64 99.9

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

   5. Applied rewrites 99.9%

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

   7. Applied rewrites 97.8%

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

   8. Taylor expanded in m around 0

      \[\leadsto -1 \cdot \color{blue}{\frac{{m}^{2}}{v}} \]
   9. Step-by-step derivation

   10. Applied rewrites 76.6%

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

   if -1.99999999999999992e28 < (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m)

   1. Initial program 99.8%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-/.f64 N/A

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

      2. lift-*.f64 N/A

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

      3. *-commutative N/A

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

      4. associate-/l* N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 N/A

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

      7. lower-/.f64 99.8

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

   4. Applied rewrites 99.8%

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

   5. Taylor expanded in v around inf

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

      1. +-commutative N/A

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

      2. fp-cancel-sign-sub-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} - \left(\mathsf{neg}\left(-1\right)\right) \cdot m} \]

      3. metadata-eval N/A

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

      4. *-commutative N/A

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

      5. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} + \left(\mathsf{neg}\left(m\right)\right) \cdot 1} \]

   7. Applied rewrites 99.8%

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

   8. Taylor expanded in m around 0

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

      1. distribute-lft-out-- N/A

         \[\leadsto \color{blue}{m \cdot \frac{m}{v} - m \cdot 1} \]

      2. associate-/l* N/A

         \[\leadsto \color{blue}{\frac{m \cdot m}{v}} - m \cdot 1 \]

      3. unpow2 N/A

         \[\leadsto \frac{\color{blue}{{m}^{2}}}{v} - m \cdot 1 \]

      4. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m} \]

      5. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m \cdot 1} \]

      6. metadata-eval N/A

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

      7. associate-*l* N/A

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

      8. *-commutative N/A

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

      9. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(-1 \cdot m\right)\right) \cdot -1} \]

      10. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(\color{blue}{\left(\mathsf{neg}\left(m\right)\right)}\right)\right) \cdot -1 \]

      11. remove-double-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{m} \cdot -1 \]

      12. metadata-eval N/A

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

      13. *-inverses N/A

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

      14. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{-1 \cdot v}{v}} \]

      15. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{\color{blue}{\mathsf{neg}\left(v\right)}}{v} \]

      16. distribute-frac-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\left(\mathsf{neg}\left(\frac{v}{v}\right)\right)} \]

      17. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{v}{\mathsf{neg}\left(v\right)}} \]

      18. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{v}{\color{blue}{-1 \cdot v}} \]

      19. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\frac{m \cdot v}{-1 \cdot v}} \]

      20. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \frac{m \cdot v}{\color{blue}{\mathsf{neg}\left(v\right)}} \]

      21. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\left(\mathsf{neg}\left(\frac{m \cdot v}{v}\right)\right)} \]

      22. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{-1 \cdot \frac{m \cdot v}{v}} \]

      23. associate-/l* N/A

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

      24. unpow2 N/A

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

      25. associate-/l* N/A

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

   10. Applied rewrites 95.5%

       \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{m}{v}, m, -m\right)} \]
3. Recombined 2 regimes into one program.

4. Final simplification 85.4%

   \[\leadsto \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -2 \cdot 10^{+28}:\\ \;\;\;\;\frac{-m}{v} \cdot m\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \end{array} \]
5. Add Preprocessing

Alternative 7: 50.1% accurate, 0.6× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -5 \cdot 10^{-308}:\\ \;\;\;\;-m\\ \mathbf{else}:\\ \;\;\;\;\frac{m}{v} \cdot m\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (if (<= (* (- (/ (* m (- 1.0 m)) v) 1.0) m) -5e-308) (- m) (* (/ m v) m)))

C

double code(double m, double v) {
	double tmp;
	if (((((m * (1.0 - m)) / v) - 1.0) * m) <= -5e-308) {
		tmp = -m;
	} else {
		tmp = (m / v) * m;
	}
	return tmp;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(m, v)
use fmin_fmax_functions
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    real(8) :: tmp
    if (((((m * (1.0d0 - m)) / v) - 1.0d0) * m) <= (-5d-308)) then
        tmp = -m
    else
        tmp = (m / v) * m
    end if
    code = tmp
end function

Java

public static double code(double m, double v) {
	double tmp;
	if (((((m * (1.0 - m)) / v) - 1.0) * m) <= -5e-308) {
		tmp = -m;
	} else {
		tmp = (m / v) * m;
	}
	return tmp;
}

Python

def code(m, v):
	tmp = 0
	if ((((m * (1.0 - m)) / v) - 1.0) * m) <= -5e-308:
		tmp = -m
	else:
		tmp = (m / v) * m
	return tmp

Julia

function code(m, v)
	tmp = 0.0
	if (Float64(Float64(Float64(Float64(m * Float64(1.0 - m)) / v) - 1.0) * m) <= -5e-308)
		tmp = Float64(-m);
	else
		tmp = Float64(Float64(m / v) * m);
	end
	return tmp
end

MATLAB

function tmp_2 = code(m, v)
	tmp = 0.0;
	if (((((m * (1.0 - m)) / v) - 1.0) * m) <= -5e-308)
		tmp = -m;
	else
		tmp = (m / v) * m;
	end
	tmp_2 = tmp;
end

Wolfram

code[m_, v_] := If[LessEqual[N[(N[(N[(N[(m * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] / v), $MachinePrecision] - 1.0), $MachinePrecision] * m), $MachinePrecision], -5e-308], (-m), N[(N[(m / v), $MachinePrecision] * m), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m) < -4.99999999999999955e-308

   1. Initial program 99.9%

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

   3. Taylor expanded in m around 0

      \[\leadsto \color{blue}{-1 \cdot m} \]
   4. Step-by-step derivation

      1. mul-1-neg N/A

         \[\leadsto \color{blue}{\mathsf{neg}\left(m\right)} \]

      2. lower-neg.f64 31.3

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

   5. Applied rewrites 31.3%

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

   if -4.99999999999999955e-308 < (*.f64 (-.f64 (/.f64 (*.f64 m (-.f64 #s(literal 1 binary64) m)) v) #s(literal 1 binary64)) m)

   1. Initial program 99.7%

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

   3. Taylor expanded in v around 0

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

      1. associate-/l* N/A

         \[\leadsto \color{blue}{{m}^{2} \cdot \frac{1 - m}{v}} \]

      2. *-commutative N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      3. lower-*.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      4. lower-/.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v}} \cdot {m}^{2} \]

      5. lower--.f64 N/A

         \[\leadsto \frac{\color{blue}{1 - m}}{v} \cdot {m}^{2} \]

      6. unpow2 N/A

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

      7. lower-*.f64 84.2

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

   5. Applied rewrites 84.2%

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

   6. Taylor expanded in m around 0

      \[\leadsto \frac{{m}^{2}}{\color{blue}{v}} \]
   7. Step-by-step derivation

   8. Applied rewrites 91.4%

      \[\leadsto \frac{m}{v} \cdot \color{blue}{m} \]
3. Recombined 2 regimes into one program.

4. Final simplification 46.6%

   \[\leadsto \begin{array}{l} \mathbf{if}\;\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \leq -5 \cdot 10^{-308}:\\ \;\;\;\;-m\\ \mathbf{else}:\\ \;\;\;\;\frac{m}{v} \cdot m\\ \end{array} \]
5. Add Preprocessing

Alternative 8: 98.4% accurate, 0.9× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 2.7 \cdot 10^{-67}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\left(1 - m\right) \cdot m}{v} \cdot m\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (if (<= m 2.7e-67) (fma (/ m v) m (- m)) (* (/ (* (- 1.0 m) m) v) m)))

C

double code(double m, double v) {
	double tmp;
	if (m <= 2.7e-67) {
		tmp = fma((m / v), m, -m);
	} else {
		tmp = (((1.0 - m) * m) / v) * m;
	}
	return tmp;
}

Julia

function code(m, v)
	tmp = 0.0
	if (m <= 2.7e-67)
		tmp = fma(Float64(m / v), m, Float64(-m));
	else
		tmp = Float64(Float64(Float64(Float64(1.0 - m) * m) / v) * m);
	end
	return tmp
end

Wolfram

code[m_, v_] := If[LessEqual[m, 2.7e-67], N[(N[(m / v), $MachinePrecision] * m + (-m)), $MachinePrecision], N[(N[(N[(N[(1.0 - m), $MachinePrecision] * m), $MachinePrecision] / v), $MachinePrecision] * m), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if m < 2.70000000000000016e-67

   1. Initial program 99.9%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-/.f64 N/A

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

      2. lift-*.f64 N/A

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

      3. *-commutative N/A

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

      4. associate-/l* N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 N/A

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

      7. lower-/.f64 99.9

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

   4. Applied rewrites 99.9%

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

   5. Taylor expanded in v around inf

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

      1. +-commutative N/A

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

      2. fp-cancel-sign-sub-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} - \left(\mathsf{neg}\left(-1\right)\right) \cdot m} \]

      3. metadata-eval N/A

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

      4. *-commutative N/A

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

      5. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} + \left(\mathsf{neg}\left(m\right)\right) \cdot 1} \]

   7. Applied rewrites 99.9%

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

   8. Taylor expanded in m around 0

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

      1. distribute-lft-out-- N/A

         \[\leadsto \color{blue}{m \cdot \frac{m}{v} - m \cdot 1} \]

      2. associate-/l* N/A

         \[\leadsto \color{blue}{\frac{m \cdot m}{v}} - m \cdot 1 \]

      3. unpow2 N/A

         \[\leadsto \frac{\color{blue}{{m}^{2}}}{v} - m \cdot 1 \]

      4. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m} \]

      5. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m \cdot 1} \]

      6. metadata-eval N/A

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

      7. associate-*l* N/A

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

      8. *-commutative N/A

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

      9. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(-1 \cdot m\right)\right) \cdot -1} \]

      10. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(\color{blue}{\left(\mathsf{neg}\left(m\right)\right)}\right)\right) \cdot -1 \]

      11. remove-double-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{m} \cdot -1 \]

      12. metadata-eval N/A

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

      13. *-inverses N/A

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

      14. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{-1 \cdot v}{v}} \]

      15. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{\color{blue}{\mathsf{neg}\left(v\right)}}{v} \]

      16. distribute-frac-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\left(\mathsf{neg}\left(\frac{v}{v}\right)\right)} \]

      17. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{v}{\mathsf{neg}\left(v\right)}} \]

      18. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{v}{\color{blue}{-1 \cdot v}} \]

      19. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\frac{m \cdot v}{-1 \cdot v}} \]

      20. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \frac{m \cdot v}{\color{blue}{\mathsf{neg}\left(v\right)}} \]

      21. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\left(\mathsf{neg}\left(\frac{m \cdot v}{v}\right)\right)} \]

      22. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{-1 \cdot \frac{m \cdot v}{v}} \]

      23. associate-/l* N/A

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

      24. unpow2 N/A

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

      25. associate-/l* N/A

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

   10. Applied rewrites 99.9%

       \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{m}{v}, m, -m\right)} \]

   if 2.70000000000000016e-67 < m

   1. Initial program 99.8%

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

   3. Taylor expanded in v around 0

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

      1. lower-/.f64 N/A

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

      2. *-commutative N/A

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

      3. lower-*.f64 N/A

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

      4. lower--.f64 99.7

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

   5. Applied rewrites 99.7%

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

Alternative 9: 98.4% accurate, 0.9× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 2.7 \cdot 10^{-67}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{m}{v} \cdot \left(1 - m\right)\right) \cdot m\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (if (<= m 2.7e-67) (fma (/ m v) m (- m)) (* (* (/ m v) (- 1.0 m)) m)))

C

double code(double m, double v) {
	double tmp;
	if (m <= 2.7e-67) {
		tmp = fma((m / v), m, -m);
	} else {
		tmp = ((m / v) * (1.0 - m)) * m;
	}
	return tmp;
}

Julia

function code(m, v)
	tmp = 0.0
	if (m <= 2.7e-67)
		tmp = fma(Float64(m / v), m, Float64(-m));
	else
		tmp = Float64(Float64(Float64(m / v) * Float64(1.0 - m)) * m);
	end
	return tmp
end

Wolfram

code[m_, v_] := If[LessEqual[m, 2.7e-67], N[(N[(m / v), $MachinePrecision] * m + (-m)), $MachinePrecision], N[(N[(N[(m / v), $MachinePrecision] * N[(1.0 - m), $MachinePrecision]), $MachinePrecision] * m), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if m < 2.70000000000000016e-67

   1. Initial program 99.9%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-/.f64 N/A

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

      2. lift-*.f64 N/A

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

      3. *-commutative N/A

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

      4. associate-/l* N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 N/A

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

      7. lower-/.f64 99.9

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

   4. Applied rewrites 99.9%

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

   5. Taylor expanded in v around inf

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

      1. +-commutative N/A

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

      2. fp-cancel-sign-sub-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} - \left(\mathsf{neg}\left(-1\right)\right) \cdot m} \]

      3. metadata-eval N/A

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

      4. *-commutative N/A

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

      5. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} + \left(\mathsf{neg}\left(m\right)\right) \cdot 1} \]

   7. Applied rewrites 99.9%

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

   8. Taylor expanded in m around 0

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

      1. distribute-lft-out-- N/A

         \[\leadsto \color{blue}{m \cdot \frac{m}{v} - m \cdot 1} \]

      2. associate-/l* N/A

         \[\leadsto \color{blue}{\frac{m \cdot m}{v}} - m \cdot 1 \]

      3. unpow2 N/A

         \[\leadsto \frac{\color{blue}{{m}^{2}}}{v} - m \cdot 1 \]

      4. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m} \]

      5. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m \cdot 1} \]

      6. metadata-eval N/A

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

      7. associate-*l* N/A

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

      8. *-commutative N/A

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

      9. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(-1 \cdot m\right)\right) \cdot -1} \]

      10. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(\color{blue}{\left(\mathsf{neg}\left(m\right)\right)}\right)\right) \cdot -1 \]

      11. remove-double-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{m} \cdot -1 \]

      12. metadata-eval N/A

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

      13. *-inverses N/A

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

      14. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{-1 \cdot v}{v}} \]

      15. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{\color{blue}{\mathsf{neg}\left(v\right)}}{v} \]

      16. distribute-frac-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\left(\mathsf{neg}\left(\frac{v}{v}\right)\right)} \]

      17. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{v}{\mathsf{neg}\left(v\right)}} \]

      18. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{v}{\color{blue}{-1 \cdot v}} \]

      19. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\frac{m \cdot v}{-1 \cdot v}} \]

      20. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \frac{m \cdot v}{\color{blue}{\mathsf{neg}\left(v\right)}} \]

      21. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\left(\mathsf{neg}\left(\frac{m \cdot v}{v}\right)\right)} \]

      22. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{-1 \cdot \frac{m \cdot v}{v}} \]

      23. associate-/l* N/A

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

      24. unpow2 N/A

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

      25. associate-/l* N/A

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

   10. Applied rewrites 99.9%

       \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{m}{v}, m, -m\right)} \]

   if 2.70000000000000016e-67 < m

   1. Initial program 99.8%

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

   3. Taylor expanded in v around 0

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

      1. lower-/.f64 N/A

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

      2. *-commutative N/A

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

      3. lower-*.f64 N/A

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

      4. lower--.f64 99.7

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

   5. Applied rewrites 99.7%

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

   7. Applied rewrites 99.7%

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

Alternative 10: 98.4% accurate, 0.9× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 2.7 \cdot 10^{-67}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \mathbf{else}:\\ \;\;\;\;\left(1 - m\right) \cdot \left(m \cdot \frac{m}{v}\right)\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (if (<= m 2.7e-67) (fma (/ m v) m (- m)) (* (- 1.0 m) (* m (/ m v)))))

C

double code(double m, double v) {
	double tmp;
	if (m <= 2.7e-67) {
		tmp = fma((m / v), m, -m);
	} else {
		tmp = (1.0 - m) * (m * (m / v));
	}
	return tmp;
}

Julia

function code(m, v)
	tmp = 0.0
	if (m <= 2.7e-67)
		tmp = fma(Float64(m / v), m, Float64(-m));
	else
		tmp = Float64(Float64(1.0 - m) * Float64(m * Float64(m / v)));
	end
	return tmp
end

Wolfram

code[m_, v_] := If[LessEqual[m, 2.7e-67], N[(N[(m / v), $MachinePrecision] * m + (-m)), $MachinePrecision], N[(N[(1.0 - m), $MachinePrecision] * N[(m * N[(m / v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if m < 2.70000000000000016e-67

   1. Initial program 99.9%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-/.f64 N/A

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

      2. lift-*.f64 N/A

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

      3. *-commutative N/A

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

      4. associate-/l* N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 N/A

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

      7. lower-/.f64 99.9

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

   4. Applied rewrites 99.9%

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

   5. Taylor expanded in v around inf

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

      1. +-commutative N/A

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

      2. fp-cancel-sign-sub-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} - \left(\mathsf{neg}\left(-1\right)\right) \cdot m} \]

      3. metadata-eval N/A

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

      4. *-commutative N/A

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

      5. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} + \left(\mathsf{neg}\left(m\right)\right) \cdot 1} \]

   7. Applied rewrites 99.9%

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

   8. Taylor expanded in m around 0

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

      1. distribute-lft-out-- N/A

         \[\leadsto \color{blue}{m \cdot \frac{m}{v} - m \cdot 1} \]

      2. associate-/l* N/A

         \[\leadsto \color{blue}{\frac{m \cdot m}{v}} - m \cdot 1 \]

      3. unpow2 N/A

         \[\leadsto \frac{\color{blue}{{m}^{2}}}{v} - m \cdot 1 \]

      4. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m} \]

      5. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m \cdot 1} \]

      6. metadata-eval N/A

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

      7. associate-*l* N/A

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

      8. *-commutative N/A

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

      9. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(-1 \cdot m\right)\right) \cdot -1} \]

      10. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(\color{blue}{\left(\mathsf{neg}\left(m\right)\right)}\right)\right) \cdot -1 \]

      11. remove-double-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{m} \cdot -1 \]

      12. metadata-eval N/A

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

      13. *-inverses N/A

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

      14. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{-1 \cdot v}{v}} \]

      15. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{\color{blue}{\mathsf{neg}\left(v\right)}}{v} \]

      16. distribute-frac-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\left(\mathsf{neg}\left(\frac{v}{v}\right)\right)} \]

      17. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{v}{\mathsf{neg}\left(v\right)}} \]

      18. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{v}{\color{blue}{-1 \cdot v}} \]

      19. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\frac{m \cdot v}{-1 \cdot v}} \]

      20. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \frac{m \cdot v}{\color{blue}{\mathsf{neg}\left(v\right)}} \]

      21. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\left(\mathsf{neg}\left(\frac{m \cdot v}{v}\right)\right)} \]

      22. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{-1 \cdot \frac{m \cdot v}{v}} \]

      23. associate-/l* N/A

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

      24. unpow2 N/A

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

      25. associate-/l* N/A

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

   10. Applied rewrites 99.9%

       \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{m}{v}, m, -m\right)} \]

   if 2.70000000000000016e-67 < m

   1. Initial program 99.8%

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

   3. Taylor expanded in v around 0

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

      1. associate-/l* N/A

         \[\leadsto \color{blue}{{m}^{2} \cdot \frac{1 - m}{v}} \]

      2. *-commutative N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      3. lower-*.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v} \cdot {m}^{2}} \]

      4. lower-/.f64 N/A

         \[\leadsto \color{blue}{\frac{1 - m}{v}} \cdot {m}^{2} \]

      5. lower--.f64 N/A

         \[\leadsto \frac{\color{blue}{1 - m}}{v} \cdot {m}^{2} \]

      6. unpow2 N/A

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

      7. lower-*.f64 99.7

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

   5. Applied rewrites 99.7%

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

   7. Applied rewrites 99.7%

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

4. Final simplification 99.8%

   \[\leadsto \begin{array}{l} \mathbf{if}\;m \leq 2.7 \cdot 10^{-67}:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \mathbf{else}:\\ \;\;\;\;\left(1 - m\right) \cdot \left(m \cdot \frac{m}{v}\right)\\ \end{array} \]
5. Add Preprocessing

Alternative 11: 97.8% accurate, 0.9× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;m \leq 1:\\ \;\;\;\;\mathsf{fma}\left(\frac{m}{v}, m, -m\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\left(-m\right) \cdot m}{v} \cdot m\\ \end{array} \end{array} \]

FPCore

(FPCore (m v)
 :precision binary64
 (if (<= m 1.0) (fma (/ m v) m (- m)) (* (/ (* (- m) m) v) m)))

C

double code(double m, double v) {
	double tmp;
	if (m <= 1.0) {
		tmp = fma((m / v), m, -m);
	} else {
		tmp = ((-m * m) / v) * m;
	}
	return tmp;
}

Julia

function code(m, v)
	tmp = 0.0
	if (m <= 1.0)
		tmp = fma(Float64(m / v), m, Float64(-m));
	else
		tmp = Float64(Float64(Float64(Float64(-m) * m) / v) * m);
	end
	return tmp
end

Wolfram

code[m_, v_] := If[LessEqual[m, 1.0], N[(N[(m / v), $MachinePrecision] * m + (-m)), $MachinePrecision], N[(N[(N[((-m) * m), $MachinePrecision] / v), $MachinePrecision] * m), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if m < 1

   1. Initial program 99.8%

      \[\left(\frac{m \cdot \left(1 - m\right)}{v} - 1\right) \cdot m \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-/.f64 N/A

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

      2. lift-*.f64 N/A

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

      3. *-commutative N/A

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

      4. associate-/l* N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 N/A

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

      7. lower-/.f64 99.8

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

   4. Applied rewrites 99.8%

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

   5. Taylor expanded in v around inf

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

      1. +-commutative N/A

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

      2. fp-cancel-sign-sub-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} - \left(\mathsf{neg}\left(-1\right)\right) \cdot m} \]

      3. metadata-eval N/A

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

      4. *-commutative N/A

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

      5. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2} \cdot \left(1 - m\right)}{v} + \left(\mathsf{neg}\left(m\right)\right) \cdot 1} \]

   7. Applied rewrites 99.8%

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

   8. Taylor expanded in m around 0

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

      1. distribute-lft-out-- N/A

         \[\leadsto \color{blue}{m \cdot \frac{m}{v} - m \cdot 1} \]

      2. associate-/l* N/A

         \[\leadsto \color{blue}{\frac{m \cdot m}{v}} - m \cdot 1 \]

      3. unpow2 N/A

         \[\leadsto \frac{\color{blue}{{m}^{2}}}{v} - m \cdot 1 \]

      4. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m} \]

      5. *-rgt-identity N/A

         \[\leadsto \frac{{m}^{2}}{v} - \color{blue}{m \cdot 1} \]

      6. metadata-eval N/A

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

      7. associate-*l* N/A

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

      8. *-commutative N/A

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

      9. fp-cancel-sub-sign-inv N/A

         \[\leadsto \color{blue}{\frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(-1 \cdot m\right)\right) \cdot -1} \]

      10. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \left(\mathsf{neg}\left(\color{blue}{\left(\mathsf{neg}\left(m\right)\right)}\right)\right) \cdot -1 \]

      11. remove-double-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{m} \cdot -1 \]

      12. metadata-eval N/A

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

      13. *-inverses N/A

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

      14. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{-1 \cdot v}{v}} \]

      15. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{\color{blue}{\mathsf{neg}\left(v\right)}}{v} \]

      16. distribute-frac-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\left(\mathsf{neg}\left(\frac{v}{v}\right)\right)} \]

      17. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \color{blue}{\frac{v}{\mathsf{neg}\left(v\right)}} \]

      18. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + m \cdot \frac{v}{\color{blue}{-1 \cdot v}} \]

      19. associate-/l* N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\frac{m \cdot v}{-1 \cdot v}} \]

      20. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \frac{m \cdot v}{\color{blue}{\mathsf{neg}\left(v\right)}} \]

      21. distribute-neg-frac2 N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{\left(\mathsf{neg}\left(\frac{m \cdot v}{v}\right)\right)} \]

      22. mul-1-neg N/A

          \[\leadsto \frac{{m}^{2}}{v} + \color{blue}{-1 \cdot \frac{m \cdot v}{v}} \]

      23. associate-/l* N/A

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

      24. unpow2 N/A

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

      25. associate-/l* N/A

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

   10. Applied rewrites 95.5%

       \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{m}{v}, m, -m\right)} \]

   if 1 < m

   1. Initial program 99.9%

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

   3. Taylor expanded in v around 0

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

      1. lower-/.f64 N/A

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

      2. *-commutative N/A

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

      3. lower-*.f64 N/A

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

      4. lower--.f64 99.9

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

   5. Applied rewrites 99.9%

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

   6. Taylor expanded in m around inf

      \[\leadsto \frac{-1 \cdot {m}^{2}}{v} \cdot m \]
   7. Step-by-step derivation

   8. Applied rewrites 97.9%

      \[\leadsto \frac{\left(-m\right) \cdot m}{v} \cdot m \]
3. Recombined 2 regimes into one program.
4. Add Preprocessing

Alternative 12: 99.8% accurate, 1.1× speedup

Math

\[\begin{array}{l} \\ \mathsf{fma}\left(\frac{1 - m}{v}, m, -1\right) \cdot m \end{array} \]

FPCore

(FPCore (m v) :precision binary64 (* (fma (/ (- 1.0 m) v) m -1.0) m))

C

double code(double m, double v) {
	return fma(((1.0 - m) / v), m, -1.0) * m;
}

Julia

function code(m, v)
	return Float64(fma(Float64(Float64(1.0 - m) / v), m, -1.0) * m)
end

Wolfram

code[m_, v_] := N[(N[(N[(N[(1.0 - m), $MachinePrecision] / v), $MachinePrecision] * m + -1.0), $MachinePrecision] * m), $MachinePrecision]

Derivation

1. Initial program 99.9%

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

3. Taylor expanded in m around 0

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

   1. *-commutative N/A

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

   2. associate-*r/ N/A

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

   3. div-add-rev N/A

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

   4. +-commutative N/A

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

   5. fp-cancel-sign-sub-inv N/A

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

   6. metadata-eval N/A

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

   7. *-lft-identity N/A

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

   8. *-commutative N/A

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

   9. associate-/l* N/A

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

   10. *-inverses N/A

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

   11. *-rgt-identity N/A

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

   12. metadata-eval N/A

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

   13. distribute-rgt-neg-in N/A

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

   14. distribute-lft-neg-out N/A

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

   15. div-sub N/A

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

   16. fp-cancel-sign-sub-inv N/A

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

   17. *-commutative N/A

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

   18. +-commutative N/A

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

   19. +-commutative N/A

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

   20. div-add N/A

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

5. Applied rewrites 99.8%

   \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{1 - m}{v}, m, -1\right)} \cdot m \]
6. Add Preprocessing

Alternative 13: 27.7% accurate, 9.3× speedup

Math

\[\begin{array}{l} \\ -m \end{array} \]

FPCore

(FPCore (m v) :precision binary64 (- m))

C

double code(double m, double v) {
	return -m;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(m, v)
use fmin_fmax_functions
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    code = -m
end function

Java

public static double code(double m, double v) {
	return -m;
}

Python

def code(m, v):
	return -m

Julia

function code(m, v)
	return Float64(-m)
end

MATLAB

function tmp = code(m, v)
	tmp = -m;
end

Wolfram

code[m_, v_] := (-m)

Derivation

1. Initial program 99.9%

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

3. Taylor expanded in m around 0

   \[\leadsto \color{blue}{-1 \cdot m} \]
4. Step-by-step derivation

   1. mul-1-neg N/A

      \[\leadsto \color{blue}{\mathsf{neg}\left(m\right)} \]

   2. lower-neg.f64 23.8

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

5. Applied rewrites 23.8%

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

6. Final simplification 23.8%

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

Alternative 14: 3.1% accurate, 28.0× speedup

Math

\[\begin{array}{l} \\ m \end{array} \]

FPCore

(FPCore (m v) :precision binary64 m)

C

double code(double m, double v) {
	return m;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(m, v)
use fmin_fmax_functions
    real(8), intent (in) :: m
    real(8), intent (in) :: v
    code = m
end function

Java

public static double code(double m, double v) {
	return m;
}

Python

def code(m, v):
	return m

Julia

function code(m, v)
	return m
end

MATLAB

function tmp = code(m, v)
	tmp = m;
end

Wolfram

code[m_, v_] := m

Derivation

1. Initial program 99.9%

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

3. Taylor expanded in m around 0

   \[\leadsto \color{blue}{-1 \cdot m} \]
4. Step-by-step derivation

   1. mul-1-neg N/A

      \[\leadsto \color{blue}{\mathsf{neg}\left(m\right)} \]

   2. lower-neg.f64 23.8

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

5. Applied rewrites 23.8%

   \[\leadsto \color{blue}{-m} \]
6. Step-by-step derivation

7. Applied rewrites 2.8%

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

8. Final simplification 2.8%

   \[\leadsto m \]
9. Add Preprocessing

Reproduce

herbie shell --seed 2024351 
(FPCore (m v)
  :name "a 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) m))