Graphics.Rasterific.CubicBezier:cachedBezierAt from Rasterific-0.6.1

Percentage Accurate: 92.3% → 95.8%
Time: 7.7s
Alternatives: 14
Speedup: 0.5×

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 14 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: 92.3% 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: 95.8% accurate, 0.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -9.5 \cdot 10^{+139}:\\ \;\;\;\;\left(t \cdot a + \left(x + y \cdot z\right)\right) + b \cdot \left(z \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -9.5e+139)
   (+ (+ (* t a) (+ x (* y z))) (* b (* z a)))
   (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 tmp;
	if (b <= -9.5e+139) {
		tmp = ((t * a) + (x + (y * z))) + (b * (z * a));
	} else {
		tmp = fma(y, z, fma(a, fma(z, b, t), x));
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -9.5e+139)
		tmp = Float64(Float64(Float64(t * a) + Float64(x + Float64(y * z))) + Float64(b * Float64(z * a)));
	else
		tmp = fma(y, z, fma(a, fma(z, b, t), x));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -9.5e+139], N[(N[(N[(t * a), $MachinePrecision] + N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(y * z + N[(a * N[(z * b + t), $MachinePrecision] + x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -9.5 \cdot 10^{+139}:\\
\;\;\;\;\left(t \cdot a + \left(x + y \cdot z\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}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -9.5000000000000002e139

    1. Initial program 94.7%

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

    if -9.5000000000000002e139 < b

    1. Initial program 90.9%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+90.9%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative90.9%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+90.9%

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

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative91.9%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative91.9%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*95.4%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out98.6%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def98.6%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def98.6%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification98.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -9.5 \cdot 10^{+139}:\\ \;\;\;\;\left(t \cdot a + \left(x + y \cdot z\right)\right) + b \cdot \left(z \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)\\ \end{array} \]

Alternative 2: 95.2% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -3 \cdot 10^{+138}:\\ \;\;\;\;\left(t \cdot a + \left(x + y \cdot z\right)\right) + b \cdot \left(z \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(a, t + b \cdot z, \mathsf{fma}\left(y, z, x\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -3e+138)
   (+ (+ (* t a) (+ x (* y z))) (* b (* z a)))
   (fma a (+ t (* b z)) (fma y z x))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -3e+138) {
		tmp = ((t * a) + (x + (y * z))) + (b * (z * a));
	} else {
		tmp = fma(a, (t + (b * z)), fma(y, z, x));
	}
	return tmp;
}
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -3e+138)
		tmp = Float64(Float64(Float64(t * a) + Float64(x + Float64(y * z))) + Float64(b * Float64(z * a)));
	else
		tmp = fma(a, Float64(t + Float64(b * z)), fma(y, z, x));
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -3e+138], N[(N[(N[(t * a), $MachinePrecision] + N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * N[(z * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(a * N[(t + N[(b * z), $MachinePrecision]), $MachinePrecision] + N[(y * z + x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -3 \cdot 10^{+138}:\\
\;\;\;\;\left(t \cdot a + \left(x + y \cdot z\right)\right) + b \cdot \left(z \cdot a\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -3.0000000000000001e138

    1. Initial program 94.7%

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

    if -3.0000000000000001e138 < b

    1. Initial program 90.9%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+90.9%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative90.9%

        \[\leadsto \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + \left(x + y \cdot z\right)} \]
      3. *-commutative90.9%

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

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

        \[\leadsto \color{blue}{a \cdot \left(t + z \cdot b\right)} + \left(x + y \cdot z\right) \]
      6. fma-def97.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x + y \cdot z\right)} \]
      7. +-commutative97.7%

        \[\leadsto \mathsf{fma}\left(a, t + z \cdot b, \color{blue}{y \cdot z + x}\right) \]
      8. fma-def97.7%

        \[\leadsto \mathsf{fma}\left(a, t + z \cdot b, \color{blue}{\mathsf{fma}\left(y, z, x\right)}\right) \]
    3. Simplified97.7%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -3 \cdot 10^{+138}:\\ \;\;\;\;\left(t \cdot a + \left(x + y \cdot z\right)\right) + b \cdot \left(z \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(a, t + b \cdot z, \mathsf{fma}\left(y, z, x\right)\right)\\ \end{array} \]

Alternative 3: 96.5% accurate, 0.5× speedup?

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

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

\mathbf{else}:\\
\;\;\;\;a \cdot \left(t + b \cdot z\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 96.8%

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

    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-def21.4%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative21.4%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative21.4%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*35.7%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out85.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def85.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative85.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def85.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified85.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 79.1%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification95.8%

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

Alternative 4: 39.3% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -7.5 \cdot 10^{-26}:\\ \;\;\;\;t \cdot a\\ \mathbf{elif}\;t \leq -1.02 \cdot 10^{-202}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq -1.1 \cdot 10^{-286}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;t \leq 9.5 \cdot 10^{-7}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 4.2 \cdot 10^{+15}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;t \leq 6.2 \cdot 10^{+81}:\\ \;\;\;\;a \cdot \left(b \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;t \cdot a\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -7.5e-26)
   (* t a)
   (if (<= t -1.02e-202)
     x
     (if (<= t -1.1e-286)
       (* y z)
       (if (<= t 9.5e-7)
         x
         (if (<= t 4.2e+15)
           (* y z)
           (if (<= t 6.2e+81) (* a (* b z)) (* t a))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -7.5e-26) {
		tmp = t * a;
	} else if (t <= -1.02e-202) {
		tmp = x;
	} else if (t <= -1.1e-286) {
		tmp = y * z;
	} else if (t <= 9.5e-7) {
		tmp = x;
	} else if (t <= 4.2e+15) {
		tmp = y * z;
	} else if (t <= 6.2e+81) {
		tmp = a * (b * z);
	} else {
		tmp = t * a;
	}
	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 <= (-7.5d-26)) then
        tmp = t * a
    else if (t <= (-1.02d-202)) then
        tmp = x
    else if (t <= (-1.1d-286)) then
        tmp = y * z
    else if (t <= 9.5d-7) then
        tmp = x
    else if (t <= 4.2d+15) then
        tmp = y * z
    else if (t <= 6.2d+81) then
        tmp = a * (b * z)
    else
        tmp = t * a
    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 <= -7.5e-26) {
		tmp = t * a;
	} else if (t <= -1.02e-202) {
		tmp = x;
	} else if (t <= -1.1e-286) {
		tmp = y * z;
	} else if (t <= 9.5e-7) {
		tmp = x;
	} else if (t <= 4.2e+15) {
		tmp = y * z;
	} else if (t <= 6.2e+81) {
		tmp = a * (b * z);
	} else {
		tmp = t * a;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -7.5e-26:
		tmp = t * a
	elif t <= -1.02e-202:
		tmp = x
	elif t <= -1.1e-286:
		tmp = y * z
	elif t <= 9.5e-7:
		tmp = x
	elif t <= 4.2e+15:
		tmp = y * z
	elif t <= 6.2e+81:
		tmp = a * (b * z)
	else:
		tmp = t * a
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -7.5e-26)
		tmp = Float64(t * a);
	elseif (t <= -1.02e-202)
		tmp = x;
	elseif (t <= -1.1e-286)
		tmp = Float64(y * z);
	elseif (t <= 9.5e-7)
		tmp = x;
	elseif (t <= 4.2e+15)
		tmp = Float64(y * z);
	elseif (t <= 6.2e+81)
		tmp = Float64(a * Float64(b * z));
	else
		tmp = Float64(t * a);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -7.5e-26)
		tmp = t * a;
	elseif (t <= -1.02e-202)
		tmp = x;
	elseif (t <= -1.1e-286)
		tmp = y * z;
	elseif (t <= 9.5e-7)
		tmp = x;
	elseif (t <= 4.2e+15)
		tmp = y * z;
	elseif (t <= 6.2e+81)
		tmp = a * (b * z);
	else
		tmp = t * a;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -7.5e-26], N[(t * a), $MachinePrecision], If[LessEqual[t, -1.02e-202], x, If[LessEqual[t, -1.1e-286], N[(y * z), $MachinePrecision], If[LessEqual[t, 9.5e-7], x, If[LessEqual[t, 4.2e+15], N[(y * z), $MachinePrecision], If[LessEqual[t, 6.2e+81], N[(a * N[(b * z), $MachinePrecision]), $MachinePrecision], N[(t * a), $MachinePrecision]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -7.5 \cdot 10^{-26}:\\
\;\;\;\;t \cdot a\\

\mathbf{elif}\;t \leq -1.02 \cdot 10^{-202}:\\
\;\;\;\;x\\

\mathbf{elif}\;t \leq -1.1 \cdot 10^{-286}:\\
\;\;\;\;y \cdot z\\

\mathbf{elif}\;t \leq 9.5 \cdot 10^{-7}:\\
\;\;\;\;x\\

\mathbf{elif}\;t \leq 4.2 \cdot 10^{+15}:\\
\;\;\;\;y \cdot z\\

\mathbf{elif}\;t \leq 6.2 \cdot 10^{+81}:\\
\;\;\;\;a \cdot \left(b \cdot z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t < -7.4999999999999994e-26 or 6.2e81 < t

    1. Initial program 84.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+84.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative84.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+84.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def86.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative86.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative86.7%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*87.4%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out93.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def93.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative93.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def93.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified93.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 70.4%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 57.3%

      \[\leadsto \color{blue}{a \cdot t} \]
    6. Step-by-step derivation
      1. *-commutative57.3%

        \[\leadsto \color{blue}{t \cdot a} \]
    7. Simplified57.3%

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

    if -7.4999999999999994e-26 < t < -1.01999999999999997e-202 or -1.1e-286 < t < 9.5000000000000001e-7

    1. Initial program 97.3%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+97.3%

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

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+97.3%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      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*97.3%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out97.3%

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

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative97.4%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified97.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 82.6%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in x around inf 50.2%

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

    if -1.01999999999999997e-202 < t < -1.1e-286 or 9.5000000000000001e-7 < t < 4.2e15

    1. Initial program 99.9%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+99.9%

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

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+99.9%

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

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*95.2%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out95.2%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def95.2%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def95.2%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified95.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around inf 69.5%

      \[\leadsto \color{blue}{y \cdot z} \]
    5. Step-by-step derivation
      1. *-commutative69.5%

        \[\leadsto \color{blue}{z \cdot y} \]
    6. Simplified69.5%

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

    if 4.2e15 < t < 6.2e81

    1. Initial program 92.2%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+92.2%

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

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+92.2%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def92.2%

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*99.9%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 70.6%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around inf 47.3%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification54.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -7.5 \cdot 10^{-26}:\\ \;\;\;\;t \cdot a\\ \mathbf{elif}\;t \leq -1.02 \cdot 10^{-202}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq -1.1 \cdot 10^{-286}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;t \leq 9.5 \cdot 10^{-7}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 4.2 \cdot 10^{+15}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;t \leq 6.2 \cdot 10^{+81}:\\ \;\;\;\;a \cdot \left(b \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;t \cdot a\\ \end{array} \]

Alternative 5: 91.3% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 4 \cdot 10^{+112}:\\ \;\;\;\;\left(t \cdot a + a \cdot \left(b \cdot z\right)\right) + \left(x + y \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x + a \cdot \left(t + b \cdot z\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t 4e+112)
   (+ (+ (* t a) (* a (* b z))) (+ x (* y z)))
   (+ x (* a (+ t (* b z))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= 4e+112) {
		tmp = ((t * a) + (a * (b * z))) + (x + (y * z));
	} else {
		tmp = x + (a * (t + (b * z)));
	}
	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 <= 4d+112) then
        tmp = ((t * a) + (a * (b * z))) + (x + (y * z))
    else
        tmp = x + (a * (t + (b * z)))
    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 <= 4e+112) {
		tmp = ((t * a) + (a * (b * z))) + (x + (y * z));
	} else {
		tmp = x + (a * (t + (b * z)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= 4e+112:
		tmp = ((t * a) + (a * (b * z))) + (x + (y * z))
	else:
		tmp = x + (a * (t + (b * z)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= 4e+112)
		tmp = Float64(Float64(Float64(t * a) + Float64(a * Float64(b * z))) + Float64(x + Float64(y * z)));
	else
		tmp = Float64(x + Float64(a * Float64(t + Float64(b * z))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= 4e+112)
		tmp = ((t * a) + (a * (b * z))) + (x + (y * z));
	else
		tmp = x + (a * (t + (b * z)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, 4e+112], N[(N[(N[(t * a), $MachinePrecision] + N[(a * N[(b * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(a * N[(t + N[(b * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 4 \cdot 10^{+112}:\\
\;\;\;\;\left(t \cdot a + a \cdot \left(b \cdot z\right)\right) + \left(x + y \cdot z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < 3.9999999999999997e112

    1. Initial program 95.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+95.0%

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

        \[\leadsto \left(x + y \cdot z\right) + \left(t \cdot a + \color{blue}{a \cdot \left(z \cdot b\right)}\right) \]
    3. Simplified94.5%

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

    if 3.9999999999999997e112 < t

    1. Initial program 72.5%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+72.5%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative72.5%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+72.5%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def77.5%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative77.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative77.5%

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      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 0 90.1%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification93.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 4 \cdot 10^{+112}:\\ \;\;\;\;\left(t \cdot a + a \cdot \left(b \cdot z\right)\right) + \left(x + y \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x + a \cdot \left(t + b \cdot z\right)\\ \end{array} \]

Alternative 6: 39.3% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -1.85 \cdot 10^{+22}:\\ \;\;\;\;t \cdot a\\ \mathbf{elif}\;a \leq -1.02 \cdot 10^{-98}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq -1.4 \cdot 10^{-137}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;a \leq 4.4 \cdot 10^{-215}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq 1.9 \cdot 10^{-41}:\\ \;\;\;\;y \cdot z\\ \mathbf{else}:\\ \;\;\;\;t \cdot a\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= a -1.85e+22)
   (* t a)
   (if (<= a -1.02e-98)
     x
     (if (<= a -1.4e-137)
       (* y z)
       (if (<= a 4.4e-215) x (if (<= a 1.9e-41) (* y z) (* t a)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (a <= -1.85e+22) {
		tmp = t * a;
	} else if (a <= -1.02e-98) {
		tmp = x;
	} else if (a <= -1.4e-137) {
		tmp = y * z;
	} else if (a <= 4.4e-215) {
		tmp = x;
	} else if (a <= 1.9e-41) {
		tmp = y * z;
	} else {
		tmp = t * a;
	}
	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 <= (-1.85d+22)) then
        tmp = t * a
    else if (a <= (-1.02d-98)) then
        tmp = x
    else if (a <= (-1.4d-137)) then
        tmp = y * z
    else if (a <= 4.4d-215) then
        tmp = x
    else if (a <= 1.9d-41) then
        tmp = y * z
    else
        tmp = t * a
    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 <= -1.85e+22) {
		tmp = t * a;
	} else if (a <= -1.02e-98) {
		tmp = x;
	} else if (a <= -1.4e-137) {
		tmp = y * z;
	} else if (a <= 4.4e-215) {
		tmp = x;
	} else if (a <= 1.9e-41) {
		tmp = y * z;
	} else {
		tmp = t * a;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if a <= -1.85e+22:
		tmp = t * a
	elif a <= -1.02e-98:
		tmp = x
	elif a <= -1.4e-137:
		tmp = y * z
	elif a <= 4.4e-215:
		tmp = x
	elif a <= 1.9e-41:
		tmp = y * z
	else:
		tmp = t * a
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (a <= -1.85e+22)
		tmp = Float64(t * a);
	elseif (a <= -1.02e-98)
		tmp = x;
	elseif (a <= -1.4e-137)
		tmp = Float64(y * z);
	elseif (a <= 4.4e-215)
		tmp = x;
	elseif (a <= 1.9e-41)
		tmp = Float64(y * z);
	else
		tmp = Float64(t * a);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (a <= -1.85e+22)
		tmp = t * a;
	elseif (a <= -1.02e-98)
		tmp = x;
	elseif (a <= -1.4e-137)
		tmp = y * z;
	elseif (a <= 4.4e-215)
		tmp = x;
	elseif (a <= 1.9e-41)
		tmp = y * z;
	else
		tmp = t * a;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[a, -1.85e+22], N[(t * a), $MachinePrecision], If[LessEqual[a, -1.02e-98], x, If[LessEqual[a, -1.4e-137], N[(y * z), $MachinePrecision], If[LessEqual[a, 4.4e-215], x, If[LessEqual[a, 1.9e-41], N[(y * z), $MachinePrecision], N[(t * a), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -1.85 \cdot 10^{+22}:\\
\;\;\;\;t \cdot a\\

\mathbf{elif}\;a \leq -1.02 \cdot 10^{-98}:\\
\;\;\;\;x\\

\mathbf{elif}\;a \leq -1.4 \cdot 10^{-137}:\\
\;\;\;\;y \cdot z\\

\mathbf{elif}\;a \leq 4.4 \cdot 10^{-215}:\\
\;\;\;\;x\\

\mathbf{elif}\;a \leq 1.9 \cdot 10^{-41}:\\
\;\;\;\;y \cdot z\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if a < -1.8499999999999999e22 or 1.8999999999999999e-41 < a

    1. Initial program 85.5%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+85.5%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative85.5%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+85.5%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def87.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative87.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative87.0%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*93.3%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out98.4%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def98.5%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def98.5%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 78.2%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 49.8%

      \[\leadsto \color{blue}{a \cdot t} \]
    6. Step-by-step derivation
      1. *-commutative49.8%

        \[\leadsto \color{blue}{t \cdot a} \]
    7. Simplified49.8%

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

    if -1.8499999999999999e22 < a < -1.02e-98 or -1.3999999999999999e-137 < a < 4.39999999999999993e-215

    1. Initial program 98.7%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+98.7%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative98.7%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+98.7%

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

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*93.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out93.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def93.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative93.8%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def93.8%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified93.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 77.9%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in x around inf 57.0%

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

    if -1.02e-98 < a < -1.3999999999999999e-137 or 4.39999999999999993e-215 < a < 1.8999999999999999e-41

    1. Initial program 97.6%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+97.6%

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

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+97.6%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def97.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative97.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative97.7%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*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 y around inf 54.7%

      \[\leadsto \color{blue}{y \cdot z} \]
    5. Step-by-step derivation
      1. *-commutative54.7%

        \[\leadsto \color{blue}{z \cdot y} \]
    6. Simplified54.7%

      \[\leadsto \color{blue}{z \cdot y} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification52.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1.85 \cdot 10^{+22}:\\ \;\;\;\;t \cdot a\\ \mathbf{elif}\;a \leq -1.02 \cdot 10^{-98}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq -1.4 \cdot 10^{-137}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;a \leq 4.4 \cdot 10^{-215}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq 1.9 \cdot 10^{-41}:\\ \;\;\;\;y \cdot z\\ \mathbf{else}:\\ \;\;\;\;t \cdot a\\ \end{array} \]

Alternative 7: 73.4% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(t + b \cdot z\right)\\ \mathbf{if}\;a \leq -1.35 \cdot 10^{+22}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;a \leq -2.05 \cdot 10^{-82}:\\ \;\;\;\;x + a \cdot \left(b \cdot z\right)\\ \mathbf{elif}\;a \leq 6.5 \cdot 10^{-46}:\\ \;\;\;\;x + y \cdot z\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (+ t (* b z)))))
   (if (<= a -1.35e+22)
     t_1
     (if (<= a -2.05e-82)
       (+ x (* a (* b z)))
       (if (<= a 6.5e-46) (+ x (* y z)) t_1)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a * (t + (b * z));
	double tmp;
	if (a <= -1.35e+22) {
		tmp = t_1;
	} else if (a <= -2.05e-82) {
		tmp = x + (a * (b * z));
	} else if (a <= 6.5e-46) {
		tmp = x + (y * z);
	} 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 = a * (t + (b * z))
    if (a <= (-1.35d+22)) then
        tmp = t_1
    else if (a <= (-2.05d-82)) then
        tmp = x + (a * (b * z))
    else if (a <= 6.5d-46) then
        tmp = x + (y * z)
    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 = a * (t + (b * z));
	double tmp;
	if (a <= -1.35e+22) {
		tmp = t_1;
	} else if (a <= -2.05e-82) {
		tmp = x + (a * (b * z));
	} else if (a <= 6.5e-46) {
		tmp = x + (y * z);
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (t + (b * z))
	tmp = 0
	if a <= -1.35e+22:
		tmp = t_1
	elif a <= -2.05e-82:
		tmp = x + (a * (b * z))
	elif a <= 6.5e-46:
		tmp = x + (y * z)
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a * Float64(t + Float64(b * z)))
	tmp = 0.0
	if (a <= -1.35e+22)
		tmp = t_1;
	elseif (a <= -2.05e-82)
		tmp = Float64(x + Float64(a * Float64(b * z)));
	elseif (a <= 6.5e-46)
		tmp = Float64(x + Float64(y * z));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = a * (t + (b * z));
	tmp = 0.0;
	if (a <= -1.35e+22)
		tmp = t_1;
	elseif (a <= -2.05e-82)
		tmp = x + (a * (b * z));
	elseif (a <= 6.5e-46)
		tmp = x + (y * z);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a * N[(t + N[(b * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[a, -1.35e+22], t$95$1, If[LessEqual[a, -2.05e-82], N[(x + N[(a * N[(b * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[a, 6.5e-46], N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(t + b \cdot z\right)\\
\mathbf{if}\;a \leq -1.35 \cdot 10^{+22}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;a \leq -2.05 \cdot 10^{-82}:\\
\;\;\;\;x + a \cdot \left(b \cdot z\right)\\

\mathbf{elif}\;a \leq 6.5 \cdot 10^{-46}:\\
\;\;\;\;x + y \cdot z\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if a < -1.3500000000000001e22 or 6.49999999999999966e-46 < a

    1. Initial program 85.7%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+85.7%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative85.7%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+85.7%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def87.2%

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*93.4%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out98.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def98.5%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def98.5%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 77.9%

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

    if -1.3500000000000001e22 < a < -2.04999999999999998e-82

    1. Initial program 94.7%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+94.7%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative94.7%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+94.7%

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

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

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

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

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

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

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 84.3%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in t around 0 84.3%

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

    if -2.04999999999999998e-82 < a < 6.49999999999999966e-46

    1. Initial program 99.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+99.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative99.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+99.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def99.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative99.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative99.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      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 84.7%

      \[\leadsto \color{blue}{y \cdot z + x} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification80.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1.35 \cdot 10^{+22}:\\ \;\;\;\;a \cdot \left(t + b \cdot z\right)\\ \mathbf{elif}\;a \leq -2.05 \cdot 10^{-82}:\\ \;\;\;\;x + a \cdot \left(b \cdot z\right)\\ \mathbf{elif}\;a \leq 6.5 \cdot 10^{-46}:\\ \;\;\;\;x + y \cdot z\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(t + b \cdot z\right)\\ \end{array} \]

Alternative 8: 82.8% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -1.05 \cdot 10^{-113} \lor \neg \left(a \leq 7.5 \cdot 10^{-69}\right):\\ \;\;\;\;x + a \cdot \left(t + b \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot z\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= a -1.05e-113) (not (<= a 7.5e-69)))
   (+ x (* a (+ t (* b z))))
   (+ x (* y z))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -1.05e-113) || !(a <= 7.5e-69)) {
		tmp = x + (a * (t + (b * z)));
	} else {
		tmp = x + (y * z);
	}
	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 <= (-1.05d-113)) .or. (.not. (a <= 7.5d-69))) then
        tmp = x + (a * (t + (b * z)))
    else
        tmp = x + (y * z)
    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 <= -1.05e-113) || !(a <= 7.5e-69)) {
		tmp = x + (a * (t + (b * z)));
	} else {
		tmp = x + (y * z);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (a <= -1.05e-113) or not (a <= 7.5e-69):
		tmp = x + (a * (t + (b * z)))
	else:
		tmp = x + (y * z)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((a <= -1.05e-113) || !(a <= 7.5e-69))
		tmp = Float64(x + Float64(a * Float64(t + Float64(b * z))));
	else
		tmp = Float64(x + Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((a <= -1.05e-113) || ~((a <= 7.5e-69)))
		tmp = x + (a * (t + (b * z)));
	else
		tmp = x + (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[a, -1.05e-113], N[Not[LessEqual[a, 7.5e-69]], $MachinePrecision]], N[(x + N[(a * N[(t + N[(b * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -1.05 \cdot 10^{-113} \lor \neg \left(a \leq 7.5 \cdot 10^{-69}\right):\\
\;\;\;\;x + a \cdot \left(t + b \cdot z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -1.05e-113 or 7.5e-69 < a

    1. Initial program 87.5%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+87.5%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative87.5%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+87.5%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def89.3%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative89.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative89.3%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*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-out98.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def98.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative98.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def98.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 91.4%

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

    if -1.05e-113 < a < 7.5e-69

    1. Initial program 99.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+99.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative99.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+99.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def99.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative99.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative99.0%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*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 a around 0 85.3%

      \[\leadsto \color{blue}{y \cdot z + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1.05 \cdot 10^{-113} \lor \neg \left(a \leq 7.5 \cdot 10^{-69}\right):\\ \;\;\;\;x + a \cdot \left(t + b \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot z\\ \end{array} \]

Alternative 9: 86.7% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -1.55 \cdot 10^{-82} \lor \neg \left(a \leq 6.2 \cdot 10^{-48}\right):\\ \;\;\;\;x + a \cdot \left(t + b \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x + t \cdot a\right) + y \cdot z\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= a -1.55e-82) (not (<= a 6.2e-48)))
   (+ x (* a (+ t (* b z))))
   (+ (+ x (* t a)) (* y z))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -1.55e-82) || !(a <= 6.2e-48)) {
		tmp = x + (a * (t + (b * z)));
	} else {
		tmp = (x + (t * a)) + (y * z);
	}
	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 <= (-1.55d-82)) .or. (.not. (a <= 6.2d-48))) then
        tmp = x + (a * (t + (b * z)))
    else
        tmp = (x + (t * a)) + (y * z)
    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 <= -1.55e-82) || !(a <= 6.2e-48)) {
		tmp = x + (a * (t + (b * z)));
	} else {
		tmp = (x + (t * a)) + (y * z);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (a <= -1.55e-82) or not (a <= 6.2e-48):
		tmp = x + (a * (t + (b * z)))
	else:
		tmp = (x + (t * a)) + (y * z)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((a <= -1.55e-82) || !(a <= 6.2e-48))
		tmp = Float64(x + Float64(a * Float64(t + Float64(b * z))));
	else
		tmp = Float64(Float64(x + Float64(t * a)) + Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((a <= -1.55e-82) || ~((a <= 6.2e-48)))
		tmp = x + (a * (t + (b * z)));
	else
		tmp = (x + (t * a)) + (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[a, -1.55e-82], N[Not[LessEqual[a, 6.2e-48]], $MachinePrecision]], N[(x + N[(a * N[(t + N[(b * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x + N[(t * a), $MachinePrecision]), $MachinePrecision] + N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -1.55 \cdot 10^{-82} \lor \neg \left(a \leq 6.2 \cdot 10^{-48}\right):\\
\;\;\;\;x + a \cdot \left(t + b \cdot z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -1.55e-82 or 6.20000000000000033e-48 < a

    1. Initial program 86.8%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+86.8%

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

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+86.8%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def88.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative88.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative88.7%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*94.2%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out98.6%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def98.7%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative98.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def98.7%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 92.2%

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

    if -1.55e-82 < a < 6.20000000000000033e-48

    1. Initial program 99.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+99.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative99.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+99.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def99.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative99.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative99.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      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 b around 0 95.9%

      \[\leadsto \color{blue}{y \cdot z + \left(a \cdot t + x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification93.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1.55 \cdot 10^{-82} \lor \neg \left(a \leq 6.2 \cdot 10^{-48}\right):\\ \;\;\;\;x + a \cdot \left(t + b \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x + t \cdot a\right) + y \cdot z\\ \end{array} \]

Alternative 10: 74.0% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -3 \cdot 10^{+21} \lor \neg \left(a \leq 7.6 \cdot 10^{-46}\right):\\ \;\;\;\;a \cdot \left(t + b \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot z\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= a -3e+21) (not (<= a 7.6e-46)))
   (* a (+ t (* b z)))
   (+ x (* y z))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -3e+21) || !(a <= 7.6e-46)) {
		tmp = a * (t + (b * z));
	} else {
		tmp = x + (y * z);
	}
	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 <= (-3d+21)) .or. (.not. (a <= 7.6d-46))) then
        tmp = a * (t + (b * z))
    else
        tmp = x + (y * z)
    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 <= -3e+21) || !(a <= 7.6e-46)) {
		tmp = a * (t + (b * z));
	} else {
		tmp = x + (y * z);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (a <= -3e+21) or not (a <= 7.6e-46):
		tmp = a * (t + (b * z))
	else:
		tmp = x + (y * z)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((a <= -3e+21) || !(a <= 7.6e-46))
		tmp = Float64(a * Float64(t + Float64(b * z)));
	else
		tmp = Float64(x + Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((a <= -3e+21) || ~((a <= 7.6e-46)))
		tmp = a * (t + (b * z));
	else
		tmp = x + (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[a, -3e+21], N[Not[LessEqual[a, 7.6e-46]], $MachinePrecision]], N[(a * N[(t + N[(b * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -3 \cdot 10^{+21} \lor \neg \left(a \leq 7.6 \cdot 10^{-46}\right):\\
\;\;\;\;a \cdot \left(t + b \cdot z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -3e21 or 7.5999999999999993e-46 < a

    1. Initial program 85.7%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+85.7%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative85.7%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+85.7%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def87.2%

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*93.4%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out98.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def98.5%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def98.5%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 77.9%

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

    if -3e21 < a < 7.5999999999999993e-46

    1. Initial program 98.3%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+98.3%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative98.3%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+98.3%

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

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*92.4%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out92.4%

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

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative92.4%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified92.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around 0 80.6%

      \[\leadsto \color{blue}{y \cdot z + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification79.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -3 \cdot 10^{+21} \lor \neg \left(a \leq 7.6 \cdot 10^{-46}\right):\\ \;\;\;\;a \cdot \left(t + b \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot z\\ \end{array} \]

Alternative 11: 63.9% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -3.7 \lor \neg \left(a \leq 3.2 \cdot 10^{-64}\right):\\ \;\;\;\;x + t \cdot a\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot z\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= a -3.7) (not (<= a 3.2e-64))) (+ x (* t a)) (+ x (* y z))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -3.7) || !(a <= 3.2e-64)) {
		tmp = x + (t * a);
	} else {
		tmp = x + (y * z);
	}
	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 <= (-3.7d0)) .or. (.not. (a <= 3.2d-64))) then
        tmp = x + (t * a)
    else
        tmp = x + (y * z)
    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 <= -3.7) || !(a <= 3.2e-64)) {
		tmp = x + (t * a);
	} else {
		tmp = x + (y * z);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (a <= -3.7) or not (a <= 3.2e-64):
		tmp = x + (t * a)
	else:
		tmp = x + (y * z)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((a <= -3.7) || !(a <= 3.2e-64))
		tmp = Float64(x + Float64(t * a));
	else
		tmp = Float64(x + Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((a <= -3.7) || ~((a <= 3.2e-64)))
		tmp = x + (t * a);
	else
		tmp = x + (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[a, -3.7], N[Not[LessEqual[a, 3.2e-64]], $MachinePrecision]], N[(x + N[(t * a), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -3.7 \lor \neg \left(a \leq 3.2 \cdot 10^{-64}\right):\\
\;\;\;\;x + t \cdot a\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -3.7000000000000002 or 3.19999999999999975e-64 < a

    1. Initial program 85.8%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+85.8%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative85.8%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+85.8%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def87.9%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative87.9%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative87.9%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*93.8%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out98.6%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def98.6%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def98.6%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 93.0%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 64.4%

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

    if -3.7000000000000002 < a < 3.19999999999999975e-64

    1. Initial program 99.1%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+99.1%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative99.1%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+99.1%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def99.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative99.1%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative99.1%

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out91.9%

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

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative91.9%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified91.9%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around 0 81.8%

      \[\leadsto \color{blue}{y \cdot z + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification71.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -3.7 \lor \neg \left(a \leq 3.2 \cdot 10^{-64}\right):\\ \;\;\;\;x + t \cdot a\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot z\\ \end{array} \]

Alternative 12: 56.7% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.2 \cdot 10^{+168}:\\ \;\;\;\;b \cdot \left(z \cdot a\right)\\ \mathbf{elif}\;b \leq 4.7 \cdot 10^{+61}:\\ \;\;\;\;x + t \cdot a\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(b \cdot z\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -1.2e+168)
   (* b (* z a))
   (if (<= b 4.7e+61) (+ x (* t a)) (* a (* b z)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.2e+168) {
		tmp = b * (z * a);
	} else if (b <= 4.7e+61) {
		tmp = x + (t * a);
	} else {
		tmp = a * (b * z);
	}
	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 (b <= (-1.2d+168)) then
        tmp = b * (z * a)
    else if (b <= 4.7d+61) then
        tmp = x + (t * a)
    else
        tmp = a * (b * z)
    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 (b <= -1.2e+168) {
		tmp = b * (z * a);
	} else if (b <= 4.7e+61) {
		tmp = x + (t * a);
	} else {
		tmp = a * (b * z);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -1.2e+168:
		tmp = b * (z * a)
	elif b <= 4.7e+61:
		tmp = x + (t * a)
	else:
		tmp = a * (b * z)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -1.2e+168)
		tmp = Float64(b * Float64(z * a));
	elseif (b <= 4.7e+61)
		tmp = Float64(x + Float64(t * a));
	else
		tmp = Float64(a * Float64(b * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -1.2e+168)
		tmp = b * (z * a);
	elseif (b <= 4.7e+61)
		tmp = x + (t * a);
	else
		tmp = a * (b * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -1.2e+168], N[(b * N[(z * a), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 4.7e+61], N[(x + N[(t * a), $MachinePrecision]), $MachinePrecision], N[(a * N[(b * z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.2 \cdot 10^{+168}:\\
\;\;\;\;b \cdot \left(z \cdot a\right)\\

\mathbf{elif}\;b \leq 4.7 \cdot 10^{+61}:\\
\;\;\;\;x + t \cdot a\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -1.20000000000000005e168

    1. Initial program 93.7%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+93.7%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative93.7%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+93.7%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def97.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative97.0%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative97.0%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*77.9%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out77.9%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def77.9%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative77.9%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def77.9%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified77.9%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 59.2%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around inf 52.8%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b\right)} \]
    6. Step-by-step derivation
      1. associate-*r*56.0%

        \[\leadsto \color{blue}{\left(a \cdot z\right) \cdot b} \]
    7. Simplified56.0%

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

    if -1.20000000000000005e168 < b < 4.6999999999999998e61

    1. Initial program 92.4%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+92.4%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative92.4%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+92.4%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def93.5%

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*97.7%

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative98.9%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified98.9%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 80.2%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 72.6%

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

    if 4.6999999999999998e61 < b

    1. Initial program 86.2%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+86.2%

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

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+86.2%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def86.2%

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*84.0%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out95.4%

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

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative95.4%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified95.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 75.6%

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

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification69.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.2 \cdot 10^{+168}:\\ \;\;\;\;b \cdot \left(z \cdot a\right)\\ \mathbf{elif}\;b \leq 4.7 \cdot 10^{+61}:\\ \;\;\;\;x + t \cdot a\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(b \cdot z\right)\\ \end{array} \]

Alternative 13: 37.1% accurate, 2.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -7.2 \cdot 10^{+21}:\\ \;\;\;\;t \cdot a\\ \mathbf{elif}\;a \leq 4.5 \cdot 10^{-188}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;t \cdot a\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= a -7.2e+21) (* t a) (if (<= a 4.5e-188) x (* t a))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (a <= -7.2e+21) {
		tmp = t * a;
	} else if (a <= 4.5e-188) {
		tmp = x;
	} else {
		tmp = t * a;
	}
	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 <= (-7.2d+21)) then
        tmp = t * a
    else if (a <= 4.5d-188) then
        tmp = x
    else
        tmp = t * a
    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 <= -7.2e+21) {
		tmp = t * a;
	} else if (a <= 4.5e-188) {
		tmp = x;
	} else {
		tmp = t * a;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if a <= -7.2e+21:
		tmp = t * a
	elif a <= 4.5e-188:
		tmp = x
	else:
		tmp = t * a
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (a <= -7.2e+21)
		tmp = Float64(t * a);
	elseif (a <= 4.5e-188)
		tmp = x;
	else
		tmp = Float64(t * a);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (a <= -7.2e+21)
		tmp = t * a;
	elseif (a <= 4.5e-188)
		tmp = x;
	else
		tmp = t * a;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[a, -7.2e+21], N[(t * a), $MachinePrecision], If[LessEqual[a, 4.5e-188], x, N[(t * a), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -7.2 \cdot 10^{+21}:\\
\;\;\;\;t \cdot a\\

\mathbf{elif}\;a \leq 4.5 \cdot 10^{-188}:\\
\;\;\;\;x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -7.2e21 or 4.49999999999999993e-188 < a

    1. Initial program 87.0%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+87.0%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative87.0%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+87.0%

        \[\leadsto \color{blue}{y \cdot z + \left(x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      4. fma-def88.3%

        \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, x + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)\right)} \]
      5. +-commutative88.3%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\left(t \cdot a + \left(a \cdot z\right) \cdot b\right) + x}\right) \]
      6. *-commutative88.3%

        \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
      7. associate-*l*93.1%

        \[\leadsto \mathsf{fma}\left(y, z, \left(a \cdot t + \color{blue}{a \cdot \left(z \cdot b\right)}\right) + x\right) \]
      8. distribute-lft-out97.5%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def97.5%

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

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def97.5%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified97.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in a around inf 71.1%

      \[\leadsto \color{blue}{a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in z around 0 45.5%

      \[\leadsto \color{blue}{a \cdot t} \]
    6. Step-by-step derivation
      1. *-commutative45.5%

        \[\leadsto \color{blue}{t \cdot a} \]
    7. Simplified45.5%

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

    if -7.2e21 < a < 4.49999999999999993e-188

    1. Initial program 98.9%

      \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
    2. Step-by-step derivation
      1. associate-+l+98.9%

        \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
      2. +-commutative98.9%

        \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
      3. associate-+l+98.9%

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

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

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

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

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
      9. fma-def92.8%

        \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
      10. +-commutative92.8%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
      11. fma-def92.8%

        \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
    3. Simplified92.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
    4. Taylor expanded in y around 0 72.5%

      \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
    5. Taylor expanded in x around inf 52.0%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification47.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -7.2 \cdot 10^{+21}:\\ \;\;\;\;t \cdot a\\ \mathbf{elif}\;a \leq 4.5 \cdot 10^{-188}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;t \cdot a\\ \end{array} \]

Alternative 14: 26.6% 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 91.5%

    \[\left(\left(x + y \cdot z\right) + t \cdot a\right) + \left(a \cdot z\right) \cdot b \]
  2. Step-by-step derivation
    1. associate-+l+91.5%

      \[\leadsto \color{blue}{\left(x + y \cdot z\right) + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right)} \]
    2. +-commutative91.5%

      \[\leadsto \color{blue}{\left(y \cdot z + x\right)} + \left(t \cdot a + \left(a \cdot z\right) \cdot b\right) \]
    3. associate-+l+91.5%

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

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

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

      \[\leadsto \mathsf{fma}\left(y, z, \left(\color{blue}{a \cdot t} + \left(a \cdot z\right) \cdot b\right) + x\right) \]
    7. associate-*l*93.0%

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

      \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{a \cdot \left(t + z \cdot b\right)} + x\right) \]
    9. fma-def95.7%

      \[\leadsto \mathsf{fma}\left(y, z, \color{blue}{\mathsf{fma}\left(a, t + z \cdot b, x\right)}\right) \]
    10. +-commutative95.7%

      \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{z \cdot b + t}, x\right)\right) \]
    11. fma-def95.7%

      \[\leadsto \mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \color{blue}{\mathsf{fma}\left(z, b, t\right)}, x\right)\right) \]
  3. Simplified95.7%

    \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, \mathsf{fma}\left(a, \mathsf{fma}\left(z, b, t\right), x\right)\right)} \]
  4. Taylor expanded in y around 0 81.0%

    \[\leadsto \color{blue}{x + a \cdot \left(z \cdot b + t\right)} \]
  5. Taylor expanded in x around inf 29.6%

    \[\leadsto \color{blue}{x} \]
  6. Final simplification29.6%

    \[\leadsto x \]

Developer target: 97.3% 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 2023238 
(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)))