Graphics.Rasterific.CubicBezier:cachedBezierAt from Rasterific-0.6.1

Percentage Accurate: 92.1% → 96.9%
Time: 7.3s
Alternatives: 12
Speedup: 0.8×

Specification

?
\[\begin{array}{l} \\ \left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (+ (+ (+ x (* y z)) (* t a)) (* (* a z) b)))
double code(double x, double y, double z, double t, double a, double b) {
	return ((x + (y * z)) + (t * a)) + ((a * z) * b);
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = ((x + (y * z)) + (t * a)) + ((a * z) * b)
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return ((x + (y * z)) + (t * a)) + ((a * z) * b);
}
def code(x, y, z, t, a, b):
	return ((x + (y * z)) + (t * a)) + ((a * z) * b)
function code(x, y, z, t, a, b)
	return Float64(Float64(Float64(x + Float64(y * z)) + Float64(t * a)) + Float64(Float64(a * z) * b))
end
function tmp = code(x, y, z, t, a, b)
	tmp = ((x + (y * z)) + (t * a)) + ((a * z) * b);
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision] + N[(t * a), $MachinePrecision]), $MachinePrecision] + N[(N[(a * z), $MachinePrecision] * b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

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

Accuracy vs Speed?

Herbie found 12 alternatives:

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

Initial Program: 92.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (+ (+ (+ x (* y z)) (* t a)) (* (* a z) b)))
double code(double x, double y, double z, double t, double a, double b) {
	return ((x + (y * z)) + (t * a)) + ((a * z) * b);
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = ((x + (y * z)) + (t * a)) + ((a * z) * b)
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return ((x + (y * z)) + (t * a)) + ((a * z) * b);
}
def code(x, y, z, t, a, b):
	return ((x + (y * z)) + (t * a)) + ((a * z) * b)
function code(x, y, z, t, a, b)
	return Float64(Float64(Float64(x + Float64(y * z)) + Float64(t * a)) + Float64(Float64(a * z) * b))
end
function tmp = code(x, y, z, t, a, b)
	tmp = ((x + (y * z)) + (t * a)) + ((a * z) * b);
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision] + N[(t * a), $MachinePrecision]), $MachinePrecision] + N[(N[(a * z), $MachinePrecision] * b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b
\end{array}

Alternative 1: 96.9% accurate, 0.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq 10^{+41}:\\ \;\;\;\;\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(z, \mathsf{fma}\left(a, b, y\right), \mathsf{fma}\left(t, a, x\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= z 1e+41)
   (fma y z (fma a (fma z b t) x))
   (fma z (fma a b y) (fma t a x))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (z <= 1e+41) {
		tmp = fma(y, z, fma(a, fma(z, b, t), x));
	} else {
		tmp = fma(z, fma(a, b, y), fma(t, a, x));
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (z <= 1e+41)
		tmp = fma(y, z, fma(a, fma(z, b, t), x));
	else
		tmp = fma(z, fma(a, b, y), fma(t, a, x));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[z, 1e+41], N[(y * z + N[(a * N[(z * b + t), $MachinePrecision] + x), $MachinePrecision]), $MachinePrecision], N[(z * N[(a * b + y), $MachinePrecision] + N[(t * a + x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq 10^{+41}:\\
\;\;\;\;\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(z, \mathsf{fma}\left(a, b, y\right), \mathsf{fma}\left(t, a, x\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < 1.00000000000000001e41

    1. Initial program 93.9%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+93.9%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative93.9%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+93.9%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def94.8%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative94.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative94.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*94.5%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out98.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def98.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative98.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def98.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]

    if 1.00000000000000001e41 < z

    1. Initial program 83.6%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. +-commutative83.6%

        \[\leadsto \color{blue}{\left(a \cdot z\right) \cdot b + \left(\left(x + y \cdot z\right) + t \cdot a\right)} \]
      2. +-commutative83.6%

        \[\leadsto \left(a \cdot z\right) \cdot b + \left(\color{blue}{\left(y \cdot z + x\right)} + t \cdot a\right) \]
      3. associate-+l+83.6%

        \[\leadsto \left(a \cdot z\right) \cdot b + \color{blue}{\left(y \cdot z + \left(x + t \cdot a\right)\right)} \]
      4. associate-+r+83.6%

        \[\leadsto \color{blue}{\left(\left(a \cdot z\right) \cdot b + y \cdot z\right) + \left(x + t \cdot a\right)} \]
      5. *-commutative83.6%

        \[\leadsto \left(\color{blue}{\left(z \cdot a\right)} \cdot b + y \cdot z\right) + \left(x + t \cdot a\right) \]
      6. associate-*l*87.2%

        \[\leadsto \left(\color{blue}{z \cdot \left(a \cdot b\right)} + y \cdot z\right) + \left(x + t \cdot a\right) \]
      7. *-commutative87.2%

        \[\leadsto \left(z \cdot \left(a \cdot b\right) + \color{blue}{z \cdot y}\right) + \left(x + t \cdot a\right) \]
      8. distribute-lft-out98.2%

        \[\leadsto \color{blue}{z \cdot \left(a \cdot b + y\right)} + \left(x + t \cdot a\right) \]
      9. fma-def98.2%

        \[\leadsto \color{blue}{\mathsf{fma}\left(z, a \cdot b + y, x + t \cdot a\right)} \]
      10. fma-def98.2%

        \[\leadsto \mathsf{fma}\left(z, \color{blue}{\mathsf{fma}\left(a, b, y\right)}, x + t \cdot a\right) \]
      11. +-commutative98.2%

        \[\leadsto \mathsf{fma}\left(z, \mathsf{fma}\left(a, b, y\right), \color{blue}{t \cdot a + x}\right) \]
      12. fma-def98.2%

        \[\leadsto \mathsf{fma}\left(z, \mathsf{fma}\left(a, b, y\right), \color{blue}{\mathsf{fma}\left(t, a, x\right)}\right) \]
    3. Simplified98.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(z, \mathsf{fma}\left(a, b, y\right), \mathsf{fma}\left(t, a, x\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification98.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq 10^{+41}:\\ \;\;\;\;\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(z, \mathsf{fma}\left(a, b, y\right), \mathsf{fma}\left(t, a, x\right)\right)\\ \end{array} \]

Alternative 2: 97.1% accurate, 0.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(a \cdot t + \left(x + z \cdot y\right)\right) + b \cdot \left(z \cdot a\right)\\ \mathbf{if}\;t_1 \leq \infty:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (+ (* a t) (+ x (* z y))) (* b (* z a)))))
   (if (<= t_1 INFINITY) t_1 (fma y z (fma a (fma z b t) x)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = ((a * t) + (x + (z * y))) + (b * (z * a));
	double tmp;
	if (t_1 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = fma(y, z, fma(a, fma(z, b, t), x));
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(Float64(a * t) + Float64(x + Float64(z * y))) + Float64(b * Float64(z * a)))
	tmp = 0.0
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = fma(y, z, fma(a, fma(z, b, t), x));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(N[(a * t), $MachinePrecision] + N[(x + N[(z * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], t$95$1, N[(y * z + N[(a * N[(z * b + t), $MachinePrecision] + x), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(a \cdot t + \left(x + z \cdot y\right)\right) + b \cdot \left(z \cdot a\right)\\
\mathbf{if}\;t_1 \leq \infty:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (+.f64 (+.f64 (+.f64 x (*.f64 y z)) (*.f64 t a)) (*.f64 (*.f64 a z) b)) < +inf.0

    1. Initial program 98.6%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]

    if +inf.0 < (+.f64 (+.f64 (+.f64 x (*.f64 y z)) (*.f64 t a)) (*.f64 (*.f64 a z) b))

    1. Initial program 0.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+0.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative0.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+0.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def27.8%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative27.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative27.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*38.9%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out83.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def83.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative83.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def83.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified83.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\left(a \cdot t + \left(x + z \cdot y\right)\right) + b \cdot \left(z \cdot a\right) \leq \infty:\\ \;\;\;\;\left(a \cdot t + \left(x + z \cdot y\right)\right) + b \cdot \left(z \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)\\ \end{array} \]

Alternative 3: 96.4% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(a \cdot t + \left(x + z \cdot y\right)\right) + b \cdot \left(z \cdot a\right)\\ \mathbf{if}\;t_1 \leq \infty:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (+ (* a t) (+ x (* z y))) (* b (* z a)))))
   (if (<= t_1 INFINITY) t_1 (+ x (* a (+ t (* z b)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = ((a * t) + (x + (z * y))) + (b * (z * a));
	double tmp;
	if (t_1 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = x + (a * (t + (z * b)));
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = ((a * t) + (x + (z * y))) + (b * (z * a));
	double tmp;
	if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = x + (a * (t + (z * b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = ((a * t) + (x + (z * y))) + (b * (z * a))
	tmp = 0
	if t_1 <= math.inf:
		tmp = t_1
	else:
		tmp = x + (a * (t + (z * b)))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(Float64(a * t) + Float64(x + Float64(z * y))) + Float64(b * Float64(z * a)))
	tmp = 0.0
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(x + Float64(a * Float64(t + Float64(z * b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = ((a * t) + (x + (z * y))) + (b * (z * a));
	tmp = 0.0;
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = x + (a * (t + (z * b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(N[(a * t), $MachinePrecision] + N[(x + N[(z * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], t$95$1, N[(x + N[(a * N[(t + N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(a \cdot t + \left(x + z \cdot y\right)\right) + b \cdot \left(z \cdot a\right)\\
\mathbf{if}\;t_1 \leq \infty:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (+.f64 (+.f64 (+.f64 x (*.f64 y z)) (*.f64 t a)) (*.f64 (*.f64 a z) b)) < +inf.0

    1. Initial program 98.6%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]

    if +inf.0 < (+.f64 (+.f64 (+.f64 x (*.f64 y z)) (*.f64 t a)) (*.f64 (*.f64 a z) b))

    1. Initial program 0.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+0.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative0.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+0.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def27.8%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative27.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative27.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*38.9%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out83.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def83.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative83.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def83.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified83.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 77.8%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\left(a \cdot t + \left(x + z \cdot y\right)\right) + b \cdot \left(z \cdot a\right) \leq \infty:\\ \;\;\;\;\left(a \cdot t + \left(x + z \cdot y\right)\right) + b \cdot \left(z \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\ \end{array} \]

Alternative 4: 93.3% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -5.2 \cdot 10^{+171} \lor \neg \left(z \leq 2.5 \cdot 10^{+107}\right):\\ \;\;\;\;z \cdot \left(y + a \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;\left(a \cdot t + a \cdot \left(z \cdot b\right)\right) + \left(x + z \cdot y\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -5.2e+171) (not (<= z 2.5e+107)))
   (* z (+ y (* a b)))
   (+ (+ (* a t) (* a (* z b))) (+ x (* z y)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -5.2e+171) || !(z <= 2.5e+107)) {
		tmp = z * (y + (a * b));
	} else {
		tmp = ((a * t) + (a * (z * b))) + (x + (z * y));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-5.2d+171)) .or. (.not. (z <= 2.5d+107))) then
        tmp = z * (y + (a * b))
    else
        tmp = ((a * t) + (a * (z * b))) + (x + (z * y))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -5.2e+171) || !(z <= 2.5e+107)) {
		tmp = z * (y + (a * b));
	} else {
		tmp = ((a * t) + (a * (z * b))) + (x + (z * y));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -5.2e+171) or not (z <= 2.5e+107):
		tmp = z * (y + (a * b))
	else:
		tmp = ((a * t) + (a * (z * b))) + (x + (z * y))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -5.2e+171) || !(z <= 2.5e+107))
		tmp = Float64(z * Float64(y + Float64(a * b)));
	else
		tmp = Float64(Float64(Float64(a * t) + Float64(a * Float64(z * b))) + Float64(x + Float64(z * y)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -5.2e+171) || ~((z <= 2.5e+107)))
		tmp = z * (y + (a * b));
	else
		tmp = ((a * t) + (a * (z * b))) + (x + (z * y));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -5.2e+171], N[Not[LessEqual[z, 2.5e+107]], $MachinePrecision]], N[(z * N[(y + N[(a * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(a * t), $MachinePrecision] + N[(a * N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(x + N[(z * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -5.2 \cdot 10^{+171} \lor \neg \left(z \leq 2.5 \cdot 10^{+107}\right):\\
\;\;\;\;z \cdot \left(y + a \cdot b\right)\\

\mathbf{else}:\\
\;\;\;\;\left(a \cdot t + a \cdot \left(z \cdot b\right)\right) + \left(x + z \cdot y\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -5.2e171 or 2.5000000000000001e107 < z

    1. Initial program 79.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+79.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative79.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+79.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def86.6%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative86.6%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative86.6%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*77.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out82.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def82.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative82.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def82.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified82.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in z around inf 89.6%

      \[\leadsto \color{blue}{z \cdot \left(a \cdot b + y\right)} \]

    if -5.2e171 < z < 2.5000000000000001e107

    1. Initial program 96.1%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+96.1%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. associate-*l*96.8%

        \[\leadsto \left(x + y \cdot z\right) + \left(t \cdot a + \color{blue}{a \cdot \left(z \cdot b\right)}\right) \]
    3. Simplified96.8%

      \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + a \cdot \left(z \cdot b\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification95.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -5.2 \cdot 10^{+171} \lor \neg \left(z \leq 2.5 \cdot 10^{+107}\right):\\ \;\;\;\;z \cdot \left(y + a \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;\left(a \cdot t + a \cdot \left(z \cdot b\right)\right) + \left(x + z \cdot y\right)\\ \end{array} \]

Alternative 5: 59.5% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + a \cdot t\\ \mathbf{if}\;z \leq -9.5 \cdot 10^{+223}:\\ \;\;\;\;a \cdot \left(z \cdot b\right)\\ \mathbf{elif}\;z \leq -1.05 \cdot 10^{+122}:\\ \;\;\;\;z \cdot y\\ \mathbf{elif}\;z \leq -5.4 \cdot 10^{+60}:\\ \;\;\;\;b \cdot \left(z \cdot a\right)\\ \mathbf{elif}\;z \leq 3.6 \cdot 10^{+70}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;z \leq 1.8 \cdot 10^{+121}:\\ \;\;\;\;z \cdot y\\ \mathbf{elif}\;z \leq 2.2 \cdot 10^{+139}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(a \cdot b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* a t))))
   (if (<= z -9.5e+223)
     (* a (* z b))
     (if (<= z -1.05e+122)
       (* z y)
       (if (<= z -5.4e+60)
         (* b (* z a))
         (if (<= z 3.6e+70)
           t_1
           (if (<= z 1.8e+121)
             (* z y)
             (if (<= z 2.2e+139) t_1 (* z (* a b))))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * t);
	double tmp;
	if (z <= -9.5e+223) {
		tmp = a * (z * b);
	} else if (z <= -1.05e+122) {
		tmp = z * y;
	} else if (z <= -5.4e+60) {
		tmp = b * (z * a);
	} else if (z <= 3.6e+70) {
		tmp = t_1;
	} else if (z <= 1.8e+121) {
		tmp = z * y;
	} else if (z <= 2.2e+139) {
		tmp = t_1;
	} else {
		tmp = z * (a * b);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x + (a * t)
    if (z <= (-9.5d+223)) then
        tmp = a * (z * b)
    else if (z <= (-1.05d+122)) then
        tmp = z * y
    else if (z <= (-5.4d+60)) then
        tmp = b * (z * a)
    else if (z <= 3.6d+70) then
        tmp = t_1
    else if (z <= 1.8d+121) then
        tmp = z * y
    else if (z <= 2.2d+139) then
        tmp = t_1
    else
        tmp = z * (a * b)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * t);
	double tmp;
	if (z <= -9.5e+223) {
		tmp = a * (z * b);
	} else if (z <= -1.05e+122) {
		tmp = z * y;
	} else if (z <= -5.4e+60) {
		tmp = b * (z * a);
	} else if (z <= 3.6e+70) {
		tmp = t_1;
	} else if (z <= 1.8e+121) {
		tmp = z * y;
	} else if (z <= 2.2e+139) {
		tmp = t_1;
	} else {
		tmp = z * (a * b);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (a * t)
	tmp = 0
	if z <= -9.5e+223:
		tmp = a * (z * b)
	elif z <= -1.05e+122:
		tmp = z * y
	elif z <= -5.4e+60:
		tmp = b * (z * a)
	elif z <= 3.6e+70:
		tmp = t_1
	elif z <= 1.8e+121:
		tmp = z * y
	elif z <= 2.2e+139:
		tmp = t_1
	else:
		tmp = z * (a * b)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(a * t))
	tmp = 0.0
	if (z <= -9.5e+223)
		tmp = Float64(a * Float64(z * b));
	elseif (z <= -1.05e+122)
		tmp = Float64(z * y);
	elseif (z <= -5.4e+60)
		tmp = Float64(b * Float64(z * a));
	elseif (z <= 3.6e+70)
		tmp = t_1;
	elseif (z <= 1.8e+121)
		tmp = Float64(z * y);
	elseif (z <= 2.2e+139)
		tmp = t_1;
	else
		tmp = Float64(z * Float64(a * b));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (a * t);
	tmp = 0.0;
	if (z <= -9.5e+223)
		tmp = a * (z * b);
	elseif (z <= -1.05e+122)
		tmp = z * y;
	elseif (z <= -5.4e+60)
		tmp = b * (z * a);
	elseif (z <= 3.6e+70)
		tmp = t_1;
	elseif (z <= 1.8e+121)
		tmp = z * y;
	elseif (z <= 2.2e+139)
		tmp = t_1;
	else
		tmp = z * (a * b);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(a * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -9.5e+223], N[(a * N[(z * b), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, -1.05e+122], N[(z * y), $MachinePrecision], If[LessEqual[z, -5.4e+60], N[(b * N[(z * a), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 3.6e+70], t$95$1, If[LessEqual[z, 1.8e+121], N[(z * y), $MachinePrecision], If[LessEqual[z, 2.2e+139], t$95$1, N[(z * N[(a * b), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + a \cdot t\\
\mathbf{if}\;z \leq -9.5 \cdot 10^{+223}:\\
\;\;\;\;a \cdot \left(z \cdot b\right)\\

\mathbf{elif}\;z \leq -1.05 \cdot 10^{+122}:\\
\;\;\;\;z \cdot y\\

\mathbf{elif}\;z \leq -5.4 \cdot 10^{+60}:\\
\;\;\;\;b \cdot \left(z \cdot a\right)\\

\mathbf{elif}\;z \leq 3.6 \cdot 10^{+70}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;z \leq 1.8 \cdot 10^{+121}:\\
\;\;\;\;z \cdot y\\

\mathbf{elif}\;z \leq 2.2 \cdot 10^{+139}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;z \cdot \left(a \cdot b\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if z < -9.50000000000000064e223

    1. Initial program 72.2%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+72.2%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative72.2%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+72.2%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def81.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative81.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative81.7%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*81.0%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out90.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def90.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative90.5%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def90.5%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified90.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 71.7%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around inf 62.9%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b\right)} \]

    if -9.50000000000000064e223 < z < -1.05000000000000008e122 or 3.6e70 < z < 1.79999999999999991e121

    1. Initial program 92.5%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+92.5%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative92.5%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+92.5%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def92.5%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative92.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative92.5%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*92.5%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out92.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def92.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative92.5%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def92.5%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified92.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around inf 58.7%

      \[\leadsto \color{blue}{y \cdot z} \]
    5. Step-by-step derivation
      1. *-commutative58.7%

        \[\leadsto \color{blue}{z \cdot y} \]
    6. Simplified58.7%

      \[\leadsto \color{blue}{z \cdot y} \]

    if -1.05000000000000008e122 < z < -5.3999999999999999e60

    1. Initial program 99.8%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+99.8%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative99.8%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+99.8%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def99.8%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative99.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative99.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*88.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out88.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def88.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative88.8%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def88.8%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified88.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 39.4%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around inf 40.1%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b\right)} \]
    6. Step-by-step derivation
      1. *-commutative40.1%

        \[\leadsto \color{blue}{\left(z \cdot b\right) \cdot a} \]
      2. *-commutative40.1%

        \[\leadsto \color{blue}{\left(b \cdot z\right)} \cdot a \]
      3. associate-*l*51.1%

        \[\leadsto \color{blue}{b \cdot \left(z \cdot a\right)} \]
    7. Simplified51.1%

      \[\leadsto \color{blue}{b \cdot \left(z \cdot a\right)} \]

    if -5.3999999999999999e60 < z < 3.6e70 or 1.79999999999999991e121 < z < 2.1999999999999999e139

    1. Initial program 95.5%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+95.5%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative95.5%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+95.5%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def96.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative96.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative96.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*96.3%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out99.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def99.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative99.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def99.4%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified99.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 86.9%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 71.0%

      \[\leadsto \color{blue}{a \cdot t + x} \]

    if 2.1999999999999999e139 < z

    1. Initial program 82.3%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+82.3%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative82.3%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+82.3%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def88.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative88.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative88.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*77.3%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out80.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def80.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative80.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def80.3%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified80.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 57.2%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around inf 57.3%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b\right)} \]
    6. Step-by-step derivation
      1. *-commutative57.3%

        \[\leadsto a \cdot \color{blue}{\left(b \cdot z\right)} \]
      2. associate-*r*62.8%

        \[\leadsto \color{blue}{\left(a \cdot b\right) \cdot z} \]
    7. Simplified62.8%

      \[\leadsto \color{blue}{\left(a \cdot b\right) \cdot z} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification67.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -9.5 \cdot 10^{+223}:\\ \;\;\;\;a \cdot \left(z \cdot b\right)\\ \mathbf{elif}\;z \leq -1.05 \cdot 10^{+122}:\\ \;\;\;\;z \cdot y\\ \mathbf{elif}\;z \leq -5.4 \cdot 10^{+60}:\\ \;\;\;\;b \cdot \left(z \cdot a\right)\\ \mathbf{elif}\;z \leq 3.6 \cdot 10^{+70}:\\ \;\;\;\;x + a \cdot t\\ \mathbf{elif}\;z \leq 1.8 \cdot 10^{+121}:\\ \;\;\;\;z \cdot y\\ \mathbf{elif}\;z \leq 2.2 \cdot 10^{+139}:\\ \;\;\;\;x + a \cdot t\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(a \cdot b\right)\\ \end{array} \]

Alternative 6: 62.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + a \cdot t\\ t_2 := x + z \cdot y\\ \mathbf{if}\;z \leq -7.8 \cdot 10^{-25}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;z \leq 3.2 \cdot 10^{-141}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;z \leq 2.65 \cdot 10^{-89}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;z \leq 8.5 \cdot 10^{+48}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;z \leq 1.05 \cdot 10^{+196}:\\ \;\;\;\;t_2\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(a \cdot b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* a t))) (t_2 (+ x (* z y))))
   (if (<= z -7.8e-25)
     t_2
     (if (<= z 3.2e-141)
       t_1
       (if (<= z 2.65e-89)
         t_2
         (if (<= z 8.5e+48) t_1 (if (<= z 1.05e+196) t_2 (* z (* a b)))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * t);
	double t_2 = x + (z * y);
	double tmp;
	if (z <= -7.8e-25) {
		tmp = t_2;
	} else if (z <= 3.2e-141) {
		tmp = t_1;
	} else if (z <= 2.65e-89) {
		tmp = t_2;
	} else if (z <= 8.5e+48) {
		tmp = t_1;
	} else if (z <= 1.05e+196) {
		tmp = t_2;
	} else {
		tmp = z * (a * b);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = x + (a * t)
    t_2 = x + (z * y)
    if (z <= (-7.8d-25)) then
        tmp = t_2
    else if (z <= 3.2d-141) then
        tmp = t_1
    else if (z <= 2.65d-89) then
        tmp = t_2
    else if (z <= 8.5d+48) then
        tmp = t_1
    else if (z <= 1.05d+196) then
        tmp = t_2
    else
        tmp = z * (a * b)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * t);
	double t_2 = x + (z * y);
	double tmp;
	if (z <= -7.8e-25) {
		tmp = t_2;
	} else if (z <= 3.2e-141) {
		tmp = t_1;
	} else if (z <= 2.65e-89) {
		tmp = t_2;
	} else if (z <= 8.5e+48) {
		tmp = t_1;
	} else if (z <= 1.05e+196) {
		tmp = t_2;
	} else {
		tmp = z * (a * b);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (a * t)
	t_2 = x + (z * y)
	tmp = 0
	if z <= -7.8e-25:
		tmp = t_2
	elif z <= 3.2e-141:
		tmp = t_1
	elif z <= 2.65e-89:
		tmp = t_2
	elif z <= 8.5e+48:
		tmp = t_1
	elif z <= 1.05e+196:
		tmp = t_2
	else:
		tmp = z * (a * b)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(a * t))
	t_2 = Float64(x + Float64(z * y))
	tmp = 0.0
	if (z <= -7.8e-25)
		tmp = t_2;
	elseif (z <= 3.2e-141)
		tmp = t_1;
	elseif (z <= 2.65e-89)
		tmp = t_2;
	elseif (z <= 8.5e+48)
		tmp = t_1;
	elseif (z <= 1.05e+196)
		tmp = t_2;
	else
		tmp = Float64(z * Float64(a * b));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (a * t);
	t_2 = x + (z * y);
	tmp = 0.0;
	if (z <= -7.8e-25)
		tmp = t_2;
	elseif (z <= 3.2e-141)
		tmp = t_1;
	elseif (z <= 2.65e-89)
		tmp = t_2;
	elseif (z <= 8.5e+48)
		tmp = t_1;
	elseif (z <= 1.05e+196)
		tmp = t_2;
	else
		tmp = z * (a * b);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(a * t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(z * y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[z, -7.8e-25], t$95$2, If[LessEqual[z, 3.2e-141], t$95$1, If[LessEqual[z, 2.65e-89], t$95$2, If[LessEqual[z, 8.5e+48], t$95$1, If[LessEqual[z, 1.05e+196], t$95$2, N[(z * N[(a * b), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + a \cdot t\\
t_2 := x + z \cdot y\\
\mathbf{if}\;z \leq -7.8 \cdot 10^{-25}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;z \leq 3.2 \cdot 10^{-141}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;z \leq 2.65 \cdot 10^{-89}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;z \leq 8.5 \cdot 10^{+48}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;z \leq 1.05 \cdot 10^{+196}:\\
\;\;\;\;t_2\\

\mathbf{else}:\\
\;\;\;\;z \cdot \left(a \cdot b\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -7.8e-25 or 3.2000000000000001e-141 < z < 2.65e-89 or 8.5000000000000001e48 < z < 1.05000000000000007e196

    1. Initial program 89.2%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+89.2%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative89.2%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+89.2%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def93.2%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative93.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative93.2%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*89.2%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out91.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def91.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative91.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def91.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified91.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around 0 61.1%

      \[\leadsto \color{blue}{y \cdot z + x} \]

    if -7.8e-25 < z < 3.2000000000000001e-141 or 2.65e-89 < z < 8.5000000000000001e48

    1. Initial program 95.1%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+95.1%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative95.1%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+95.1%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def95.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative95.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative95.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*96.2%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out99.9%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def100.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative100.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def100.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 92.9%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 77.4%

      \[\leadsto \color{blue}{a \cdot t + x} \]

    if 1.05000000000000007e196 < z

    1. Initial program 82.5%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+82.5%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative82.5%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+82.5%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def86.8%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative86.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative86.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*79.3%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out83.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def83.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative83.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def83.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified83.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 66.7%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around inf 66.7%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b\right)} \]
    6. Step-by-step derivation
      1. *-commutative66.7%

        \[\leadsto a \cdot \color{blue}{\left(b \cdot z\right)} \]
      2. associate-*r*70.5%

        \[\leadsto \color{blue}{\left(a \cdot b\right) \cdot z} \]
    7. Simplified70.5%

      \[\leadsto \color{blue}{\left(a \cdot b\right) \cdot z} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification70.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -7.8 \cdot 10^{-25}:\\ \;\;\;\;x + z \cdot y\\ \mathbf{elif}\;z \leq 3.2 \cdot 10^{-141}:\\ \;\;\;\;x + a \cdot t\\ \mathbf{elif}\;z \leq 2.65 \cdot 10^{-89}:\\ \;\;\;\;x + z \cdot y\\ \mathbf{elif}\;z \leq 8.5 \cdot 10^{+48}:\\ \;\;\;\;x + a \cdot t\\ \mathbf{elif}\;z \leq 1.05 \cdot 10^{+196}:\\ \;\;\;\;x + z \cdot y\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(a \cdot b\right)\\ \end{array} \]

Alternative 7: 83.3% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2.5 \cdot 10^{+68} \lor \neg \left(z \leq 3.7 \cdot 10^{+70}\right):\\ \;\;\;\;z \cdot \left(y + a \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= z -2.5e+68) (not (<= z 3.7e+70)))
   (* z (+ y (* a b)))
   (+ x (* a (+ t (* z b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -2.5e+68) || !(z <= 3.7e+70)) {
		tmp = z * (y + (a * b));
	} else {
		tmp = x + (a * (t + (z * b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((z <= (-2.5d+68)) .or. (.not. (z <= 3.7d+70))) then
        tmp = z * (y + (a * b))
    else
        tmp = x + (a * (t + (z * b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((z <= -2.5e+68) || !(z <= 3.7e+70)) {
		tmp = z * (y + (a * b));
	} else {
		tmp = x + (a * (t + (z * b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (z <= -2.5e+68) or not (z <= 3.7e+70):
		tmp = z * (y + (a * b))
	else:
		tmp = x + (a * (t + (z * b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((z <= -2.5e+68) || !(z <= 3.7e+70))
		tmp = Float64(z * Float64(y + Float64(a * b)));
	else
		tmp = Float64(x + Float64(a * Float64(t + Float64(z * b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((z <= -2.5e+68) || ~((z <= 3.7e+70)))
		tmp = z * (y + (a * b));
	else
		tmp = x + (a * (t + (z * b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[z, -2.5e+68], N[Not[LessEqual[z, 3.7e+70]], $MachinePrecision]], N[(z * N[(y + N[(a * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(a * N[(t + N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.5 \cdot 10^{+68} \lor \neg \left(z \leq 3.7 \cdot 10^{+70}\right):\\
\;\;\;\;z \cdot \left(y + a \cdot b\right)\\

\mathbf{else}:\\
\;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.5000000000000002e68 or 3.69999999999999989e70 < z

    1. Initial program 83.5%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+83.5%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative83.5%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+83.5%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def89.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative89.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative89.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*82.7%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out86.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def86.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative86.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def86.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified86.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in z around inf 86.9%

      \[\leadsto \color{blue}{z \cdot \left(a \cdot b + y\right)} \]

    if -2.5000000000000002e68 < z < 3.69999999999999989e70

    1. Initial program 96.1%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+96.1%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative96.1%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+96.1%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def96.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative96.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative96.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*96.9%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out99.9%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def99.9%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative99.9%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def100.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 87.4%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification87.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.5 \cdot 10^{+68} \lor \neg \left(z \leq 3.7 \cdot 10^{+70}\right):\\ \;\;\;\;z \cdot \left(y + a \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\ \end{array} \]

Alternative 8: 87.1% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -1650000 \lor \neg \left(a \leq 7 \cdot 10^{-74}\right):\\ \;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;z \cdot y + \left(x + a \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= a -1650000.0) (not (<= a 7e-74)))
   (+ x (* a (+ t (* z b))))
   (+ (* z y) (+ x (* a t)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -1650000.0) || !(a <= 7e-74)) {
		tmp = x + (a * (t + (z * b)));
	} else {
		tmp = (z * y) + (x + (a * t));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((a <= (-1650000.0d0)) .or. (.not. (a <= 7d-74))) then
        tmp = x + (a * (t + (z * b)))
    else
        tmp = (z * y) + (x + (a * t))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -1650000.0) || !(a <= 7e-74)) {
		tmp = x + (a * (t + (z * b)));
	} else {
		tmp = (z * y) + (x + (a * t));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (a <= -1650000.0) or not (a <= 7e-74):
		tmp = x + (a * (t + (z * b)))
	else:
		tmp = (z * y) + (x + (a * t))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((a <= -1650000.0) || !(a <= 7e-74))
		tmp = Float64(x + Float64(a * Float64(t + Float64(z * b))));
	else
		tmp = Float64(Float64(z * y) + Float64(x + Float64(a * t)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((a <= -1650000.0) || ~((a <= 7e-74)))
		tmp = x + (a * (t + (z * b)));
	else
		tmp = (z * y) + (x + (a * t));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[a, -1650000.0], N[Not[LessEqual[a, 7e-74]], $MachinePrecision]], N[(x + N[(a * N[(t + N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(z * y), $MachinePrecision] + N[(x + N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -1650000 \lor \neg \left(a \leq 7 \cdot 10^{-74}\right):\\
\;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\

\mathbf{else}:\\
\;\;\;\;z \cdot y + \left(x + a \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -1.65e6 or 7.00000000000000029e-74 < a

    1. Initial program 86.4%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+86.4%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative86.4%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+86.4%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def90.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative90.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative90.0%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*93.5%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out99.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def99.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative99.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def99.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 92.4%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]

    if -1.65e6 < a < 7.00000000000000029e-74

    1. Initial program 97.9%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+97.9%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative97.9%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+97.9%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def97.9%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative97.9%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative97.9%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*90.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out90.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def90.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative90.1%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def90.1%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified90.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in b around 0 90.4%

      \[\leadsto \color{blue}{y \cdot z + \left(a \cdot t + x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification91.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1650000 \lor \neg \left(a \leq 7 \cdot 10^{-74}\right):\\ \;\;\;\;x + a \cdot \left(t + z \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;z \cdot y + \left(x + a \cdot t\right)\\ \end{array} \]

Alternative 9: 40.0% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.25 \cdot 10^{+90}:\\ \;\;\;\;a \cdot t\\ \mathbf{elif}\;t \leq -4.9 \cdot 10^{-210}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 1.45 \cdot 10^{-21}:\\ \;\;\;\;a \cdot \left(z \cdot b\right)\\ \mathbf{elif}\;t \leq 6.4 \cdot 10^{+71}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;a \cdot t\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -1.25e+90)
   (* a t)
   (if (<= t -4.9e-210)
     x
     (if (<= t 1.45e-21) (* a (* z b)) (if (<= t 6.4e+71) x (* a t))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1.25e+90) {
		tmp = a * t;
	} else if (t <= -4.9e-210) {
		tmp = x;
	} else if (t <= 1.45e-21) {
		tmp = a * (z * b);
	} else if (t <= 6.4e+71) {
		tmp = x;
	} else {
		tmp = a * t;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (t <= (-1.25d+90)) then
        tmp = a * t
    else if (t <= (-4.9d-210)) then
        tmp = x
    else if (t <= 1.45d-21) then
        tmp = a * (z * b)
    else if (t <= 6.4d+71) then
        tmp = x
    else
        tmp = a * t
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1.25e+90) {
		tmp = a * t;
	} else if (t <= -4.9e-210) {
		tmp = x;
	} else if (t <= 1.45e-21) {
		tmp = a * (z * b);
	} else if (t <= 6.4e+71) {
		tmp = x;
	} else {
		tmp = a * t;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -1.25e+90:
		tmp = a * t
	elif t <= -4.9e-210:
		tmp = x
	elif t <= 1.45e-21:
		tmp = a * (z * b)
	elif t <= 6.4e+71:
		tmp = x
	else:
		tmp = a * t
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -1.25e+90)
		tmp = Float64(a * t);
	elseif (t <= -4.9e-210)
		tmp = x;
	elseif (t <= 1.45e-21)
		tmp = Float64(a * Float64(z * b));
	elseif (t <= 6.4e+71)
		tmp = x;
	else
		tmp = Float64(a * t);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -1.25e+90)
		tmp = a * t;
	elseif (t <= -4.9e-210)
		tmp = x;
	elseif (t <= 1.45e-21)
		tmp = a * (z * b);
	elseif (t <= 6.4e+71)
		tmp = x;
	else
		tmp = a * t;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -1.25e+90], N[(a * t), $MachinePrecision], If[LessEqual[t, -4.9e-210], x, If[LessEqual[t, 1.45e-21], N[(a * N[(z * b), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 6.4e+71], x, N[(a * t), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.25 \cdot 10^{+90}:\\
\;\;\;\;a \cdot t\\

\mathbf{elif}\;t \leq -4.9 \cdot 10^{-210}:\\
\;\;\;\;x\\

\mathbf{elif}\;t \leq 1.45 \cdot 10^{-21}:\\
\;\;\;\;a \cdot \left(z \cdot b\right)\\

\mathbf{elif}\;t \leq 6.4 \cdot 10^{+71}:\\
\;\;\;\;x\\

\mathbf{else}:\\
\;\;\;\;a \cdot t\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -1.2500000000000001e90 or 6.40000000000000046e71 < t

    1. Initial program 86.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+86.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative86.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+86.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def88.2%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative88.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative88.2%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*84.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out92.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def92.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative92.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def92.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified92.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 68.7%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 56.1%

      \[\leadsto \color{blue}{a \cdot t} \]
    6. Step-by-step derivation
      1. *-commutative56.1%

        \[\leadsto \color{blue}{t \cdot a} \]
    7. Simplified56.1%

      \[\leadsto \color{blue}{t \cdot a} \]

    if -1.2500000000000001e90 < t < -4.8999999999999998e-210 or 1.45e-21 < t < 6.40000000000000046e71

    1. Initial program 96.2%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+96.2%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative96.2%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+96.2%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def97.3%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative97.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative97.3%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*95.7%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out95.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def95.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative95.8%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def95.8%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified95.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 74.3%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in x around inf 39.7%

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

    if -4.8999999999999998e-210 < t < 1.45e-21

    1. Initial program 93.2%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+93.2%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative93.2%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+93.2%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def96.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative96.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative96.0%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*97.2%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out97.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def97.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative97.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def97.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 49.3%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around inf 49.2%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification48.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.25 \cdot 10^{+90}:\\ \;\;\;\;a \cdot t\\ \mathbf{elif}\;t \leq -4.9 \cdot 10^{-210}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 1.45 \cdot 10^{-21}:\\ \;\;\;\;a \cdot \left(z \cdot b\right)\\ \mathbf{elif}\;t \leq 6.4 \cdot 10^{+71}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;a \cdot t\\ \end{array} \]

Alternative 10: 74.7% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -9.5 \lor \neg \left(a \leq 3350\right):\\ \;\;\;\;a \cdot \left(t + z \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;x + z \cdot y\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= a -9.5) (not (<= a 3350.0))) (* a (+ t (* z b))) (+ x (* z y))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -9.5) || !(a <= 3350.0)) {
		tmp = a * (t + (z * b));
	} else {
		tmp = x + (z * y);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((a <= (-9.5d0)) .or. (.not. (a <= 3350.0d0))) then
        tmp = a * (t + (z * b))
    else
        tmp = x + (z * y)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -9.5) || !(a <= 3350.0)) {
		tmp = a * (t + (z * b));
	} else {
		tmp = x + (z * y);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (a <= -9.5) or not (a <= 3350.0):
		tmp = a * (t + (z * b))
	else:
		tmp = x + (z * y)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((a <= -9.5) || !(a <= 3350.0))
		tmp = Float64(a * Float64(t + Float64(z * b)));
	else
		tmp = Float64(x + Float64(z * y));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((a <= -9.5) || ~((a <= 3350.0)))
		tmp = a * (t + (z * b));
	else
		tmp = x + (z * y);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[a, -9.5], N[Not[LessEqual[a, 3350.0]], $MachinePrecision]], N[(a * N[(t + N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(z * y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -9.5 \lor \neg \left(a \leq 3350\right):\\
\;\;\;\;a \cdot \left(t + z \cdot b\right)\\

\mathbf{else}:\\
\;\;\;\;x + z \cdot y\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -9.5 or 3350 < a

    1. Initial program 85.1%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+85.1%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative85.1%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+85.1%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def89.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative89.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative89.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*92.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out99.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def99.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative99.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def99.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified99.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 81.0%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]

    if -9.5 < a < 3350

    1. Initial program 98.1%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+98.1%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative98.1%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+98.1%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def98.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative98.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative98.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*91.0%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out91.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def91.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative91.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def91.0%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified91.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around 0 74.7%

      \[\leadsto \color{blue}{y \cdot z + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -9.5 \lor \neg \left(a \leq 3350\right):\\ \;\;\;\;a \cdot \left(t + z \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;x + z \cdot y\\ \end{array} \]

Alternative 11: 40.0% accurate, 2.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.3 \cdot 10^{+90}:\\ \;\;\;\;a \cdot t\\ \mathbf{elif}\;t \leq 5.4 \cdot 10^{+73}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;a \cdot t\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -1.3e+90) (* a t) (if (<= t 5.4e+73) x (* a t))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1.3e+90) {
		tmp = a * t;
	} else if (t <= 5.4e+73) {
		tmp = x;
	} else {
		tmp = a * t;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (t <= (-1.3d+90)) then
        tmp = a * t
    else if (t <= 5.4d+73) then
        tmp = x
    else
        tmp = a * t
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1.3e+90) {
		tmp = a * t;
	} else if (t <= 5.4e+73) {
		tmp = x;
	} else {
		tmp = a * t;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -1.3e+90:
		tmp = a * t
	elif t <= 5.4e+73:
		tmp = x
	else:
		tmp = a * t
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -1.3e+90)
		tmp = Float64(a * t);
	elseif (t <= 5.4e+73)
		tmp = x;
	else
		tmp = Float64(a * t);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -1.3e+90)
		tmp = a * t;
	elseif (t <= 5.4e+73)
		tmp = x;
	else
		tmp = a * t;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -1.3e+90], N[(a * t), $MachinePrecision], If[LessEqual[t, 5.4e+73], x, N[(a * t), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.3 \cdot 10^{+90}:\\
\;\;\;\;a \cdot t\\

\mathbf{elif}\;t \leq 5.4 \cdot 10^{+73}:\\
\;\;\;\;x\\

\mathbf{else}:\\
\;\;\;\;a \cdot t\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.2999999999999999e90 or 5.3999999999999998e73 < t

    1. Initial program 86.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+86.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative86.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+86.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def88.2%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative88.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative88.2%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*84.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out92.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def92.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative92.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def92.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified92.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 68.7%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 56.1%

      \[\leadsto \color{blue}{a \cdot t} \]
    6. Step-by-step derivation
      1. *-commutative56.1%

        \[\leadsto \color{blue}{t \cdot a} \]
    7. Simplified56.1%

      \[\leadsto \color{blue}{t \cdot a} \]

    if -1.2999999999999999e90 < t < 5.3999999999999998e73

    1. Initial program 94.9%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+94.9%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative94.9%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+94.9%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def96.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative96.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative96.7%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*96.4%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out96.4%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def96.4%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative96.4%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def96.4%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified96.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 74.2%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in x around inf 34.3%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification42.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.3 \cdot 10^{+90}:\\ \;\;\;\;a \cdot t\\ \mathbf{elif}\;t \leq 5.4 \cdot 10^{+73}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;a \cdot t\\ \end{array} \]

Alternative 12: 26.4% accurate, 15.0× speedup?

\[\begin{array}{l} \\ x \end{array} \]
(FPCore (x y z t a b) :precision binary64 x)
double code(double x, double y, double z, double t, double a, double b) {
	return x;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = x
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return x;
}
def code(x, y, z, t, a, b):
	return x
function code(x, y, z, t, a, b)
	return x
end
function tmp = code(x, y, z, t, a, b)
	tmp = x;
end
code[x_, y_, z_, t_, a_, b_] := x
\begin{array}{l}

\\
x
\end{array}
Derivation
  1. Initial program 91.7%

    \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
  2. Step-by-step derivation
    1. associate-+l+91.7%

      \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
    2. +-commutative91.7%

      \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
    3. associate-+l+91.7%

      \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
    4. fma-def93.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
    5. +-commutative93.6%

      \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
    6. *-commutative93.6%

      \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
    7. associate-*l*91.9%

      \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
    8. distribute-lft-out95.0%

      \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
    9. fma-def95.1%

      \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
    10. +-commutative95.1%

      \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
    11. fma-def95.1%

      \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
  3. Simplified95.1%

    \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
  4. Taylor expanded in y around 0 76.7%

    \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
  5. Taylor expanded in x around inf 27.0%

    \[\leadsto \color{blue}{x} \]
  6. Final simplification27.0%

    \[\leadsto x \]

Developer target: 97.4% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := z \cdot \left(b \cdot a + y\right) + \left(x + t \cdot a\right)\\ \mathbf{if}\;z < -11820553527347888000:\\ \;\;\;\;t_1\\ \mathbf{elif}\;z < 4.7589743188364287 \cdot 10^{-122}:\\ \;\;\;\;\left(b \cdot z + t\right) \cdot a + \left(z \cdot y + x\right)\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ (* z (+ (* b a) y)) (+ x (* t a)))))
   (if (< z -11820553527347888000.0)
     t_1
     (if (< z 4.7589743188364287e-122)
       (+ (* (+ (* b z) t) a) (+ (* z y) x))
       t_1))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (z * ((b * a) + y)) + (x + (t * a));
	double tmp;
	if (z < -11820553527347888000.0) {
		tmp = t_1;
	} else if (z < 4.7589743188364287e-122) {
		tmp = (((b * z) + t) * a) + ((z * y) + x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: tmp
    t_1 = (z * ((b * a) + y)) + (x + (t * a))
    if (z < (-11820553527347888000.0d0)) then
        tmp = t_1
    else if (z < 4.7589743188364287d-122) then
        tmp = (((b * z) + t) * a) + ((z * y) + x)
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (z * ((b * a) + y)) + (x + (t * a));
	double tmp;
	if (z < -11820553527347888000.0) {
		tmp = t_1;
	} else if (z < 4.7589743188364287e-122) {
		tmp = (((b * z) + t) * a) + ((z * y) + x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (z * ((b * a) + y)) + (x + (t * a))
	tmp = 0
	if z < -11820553527347888000.0:
		tmp = t_1
	elif z < 4.7589743188364287e-122:
		tmp = (((b * z) + t) * a) + ((z * y) + x)
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(z * Float64(Float64(b * a) + y)) + Float64(x + Float64(t * a)))
	tmp = 0.0
	if (z < -11820553527347888000.0)
		tmp = t_1;
	elseif (z < 4.7589743188364287e-122)
		tmp = Float64(Float64(Float64(Float64(b * z) + t) * a) + Float64(Float64(z * y) + x));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (z * ((b * a) + y)) + (x + (t * a));
	tmp = 0.0;
	if (z < -11820553527347888000.0)
		tmp = t_1;
	elseif (z < 4.7589743188364287e-122)
		tmp = (((b * z) + t) * a) + ((z * y) + x);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(z * N[(N[(b * a), $MachinePrecision] + y), $MachinePrecision]), $MachinePrecision] + N[(x + N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[z, -11820553527347888000.0], t$95$1, If[Less[z, 4.7589743188364287e-122], N[(N[(N[(N[(b * z), $MachinePrecision] + t), $MachinePrecision] * a), $MachinePrecision] + N[(N[(z * y), $MachinePrecision] + x), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := z \cdot \left(b \cdot a + y\right) + \left(x + t \cdot a\right)\\
\mathbf{if}\;z < -11820553527347888000:\\
\;\;\;\;t_1\\

\mathbf{elif}\;z < 4.7589743188364287 \cdot 10^{-122}:\\
\;\;\;\;\left(b \cdot z + t\right) \cdot a + \left(z \cdot y + x\right)\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2023257 
(FPCore (x y z t a b)
  :name "Graphics.Rasterific.CubicBezier:cachedBezierAt from Rasterific-0.6.1"
  :precision binary64

  :herbie-target
  (if (< z -11820553527347888000.0) (+ (* z (+ (* b a) y)) (+ x (* t a))) (if (< z 4.7589743188364287e-122) (+ (* (+ (* b z) t) a) (+ (* z y) x)) (+ (* z (+ (* b a) y)) (+ x (* t a)))))

  (+ (+ (+ x (* y z)) (* t a)) (* (* a z) b)))