Graphics.Rendering.Plot.Render.Plot.Axis:tickPosition from plot-0.2.3.4

Percentage Accurate: 97.7% → 97.7%
Time: 5.7s
Alternatives: 9
Speedup: 1.1×

Specification

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

\\
x + \left(y - x\right) \cdot \frac{z}{t}
\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 9 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: 97.7% accurate, 1.0× speedup?

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

\\
x + \left(y - x\right) \cdot \frac{z}{t}
\end{array}

Alternative 1: 97.7% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \mathsf{fma}\left(\frac{z}{t}, y - x, x\right) \end{array} \]
(FPCore (x y z t) :precision binary64 (fma (/ z t) (- y x) x))
double code(double x, double y, double z, double t) {
	return fma((z / t), (y - x), x);
}
function code(x, y, z, t)
	return fma(Float64(z / t), Float64(y - x), x)
end
code[x_, y_, z_, t_] := N[(N[(z / t), $MachinePrecision] * N[(y - x), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}

\\
\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)
\end{array}
Derivation
  1. Initial program 98.3%

    \[x + \left(y - x\right) \cdot \frac{z}{t} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-+.f64N/A

      \[\leadsto \color{blue}{x + \left(y - x\right) \cdot \frac{z}{t}} \]
    2. +-commutativeN/A

      \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
    3. lift-*.f64N/A

      \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
    4. *-commutativeN/A

      \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right)} + x \]
    5. lower-fma.f6498.3

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
  4. Applied rewrites98.3%

    \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
  5. Add Preprocessing

Alternative 2: 92.5% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -4 \cdot 10^{-33} \lor \neg \left(\frac{z}{t} \leq 50000\right):\\ \;\;\;\;\frac{\left(y - x\right) \cdot z}{t}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= (/ z t) -4e-33) (not (<= (/ z t) 50000.0)))
   (/ (* (- y x) z) t)
   (fma (/ y t) z x)))
double code(double x, double y, double z, double t) {
	double tmp;
	if (((z / t) <= -4e-33) || !((z / t) <= 50000.0)) {
		tmp = ((y - x) * z) / t;
	} else {
		tmp = fma((y / t), z, x);
	}
	return tmp;
}
function code(x, y, z, t)
	tmp = 0.0
	if ((Float64(z / t) <= -4e-33) || !(Float64(z / t) <= 50000.0))
		tmp = Float64(Float64(Float64(y - x) * z) / t);
	else
		tmp = fma(Float64(y / t), z, x);
	end
	return tmp
end
code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -4e-33], N[Not[LessEqual[N[(z / t), $MachinePrecision], 50000.0]], $MachinePrecision]], N[(N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision] / t), $MachinePrecision], N[(N[(y / t), $MachinePrecision] * z + x), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -4 \cdot 10^{-33} \lor \neg \left(\frac{z}{t} \leq 50000\right):\\
\;\;\;\;\frac{\left(y - x\right) \cdot z}{t}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 z t) < -4.0000000000000002e-33 or 5e4 < (/.f64 z t)

    1. Initial program 96.9%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    4. Step-by-step derivation
      1. div-subN/A

        \[\leadsto z \cdot \color{blue}{\frac{y - x}{t}} \]
      2. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
      3. lower-*.f64N/A

        \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
      4. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z \]
      5. lower--.f6489.4

        \[\leadsto \frac{\color{blue}{y - x}}{t} \cdot z \]
    5. Applied rewrites89.4%

      \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
    6. Step-by-step derivation
      1. Applied rewrites92.4%

        \[\leadsto \frac{\left(y - x\right) \cdot z}{\color{blue}{t}} \]

      if -4.0000000000000002e-33 < (/.f64 z t) < 5e4

      1. Initial program 99.8%

        \[x + \left(y - x\right) \cdot \frac{z}{t} \]
      2. Add Preprocessing
      3. Step-by-step derivation
        1. lift-+.f64N/A

          \[\leadsto \color{blue}{x + \left(y - x\right) \cdot \frac{z}{t}} \]
        2. +-commutativeN/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
        3. lift-*.f64N/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
        4. *-commutativeN/A

          \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right)} + x \]
        5. lower-fma.f6499.9

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
      4. Applied rewrites99.9%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
      5. Step-by-step derivation
        1. lift-fma.f64N/A

          \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right) + x} \]
        2. *-commutativeN/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
        3. lift-/.f64N/A

          \[\leadsto \left(y - x\right) \cdot \color{blue}{\frac{z}{t}} + x \]
        4. associate-*r/N/A

          \[\leadsto \color{blue}{\frac{\left(y - x\right) \cdot z}{t}} + x \]
        5. associate-*l/N/A

          \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} + x \]
        6. lift-/.f64N/A

          \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z + x \]
        7. lower-fma.f6494.4

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
      6. Applied rewrites94.4%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
      7. Taylor expanded in x around 0

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
      8. Step-by-step derivation
        1. lower-/.f6495.5

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
      9. Applied rewrites95.5%

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
    7. Recombined 2 regimes into one program.
    8. Final simplification93.9%

      \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -4 \cdot 10^{-33} \lor \neg \left(\frac{z}{t} \leq 50000\right):\\ \;\;\;\;\frac{\left(y - x\right) \cdot z}{t}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \end{array} \]
    9. Add Preprocessing

    Alternative 3: 93.5% accurate, 0.4× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1000000 \lor \neg \left(\frac{z}{t} \leq 0.0005\right):\\ \;\;\;\;\frac{y - x}{t} \cdot z\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \end{array} \end{array} \]
    (FPCore (x y z t)
     :precision binary64
     (if (or (<= (/ z t) -1000000.0) (not (<= (/ z t) 0.0005)))
       (* (/ (- y x) t) z)
       (fma (/ y t) z x)))
    double code(double x, double y, double z, double t) {
    	double tmp;
    	if (((z / t) <= -1000000.0) || !((z / t) <= 0.0005)) {
    		tmp = ((y - x) / t) * z;
    	} else {
    		tmp = fma((y / t), z, x);
    	}
    	return tmp;
    }
    
    function code(x, y, z, t)
    	tmp = 0.0
    	if ((Float64(z / t) <= -1000000.0) || !(Float64(z / t) <= 0.0005))
    		tmp = Float64(Float64(Float64(y - x) / t) * z);
    	else
    		tmp = fma(Float64(y / t), z, x);
    	end
    	return tmp
    end
    
    code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -1000000.0], N[Not[LessEqual[N[(z / t), $MachinePrecision], 0.0005]], $MachinePrecision]], N[(N[(N[(y - x), $MachinePrecision] / t), $MachinePrecision] * z), $MachinePrecision], N[(N[(y / t), $MachinePrecision] * z + x), $MachinePrecision]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;\frac{z}{t} \leq -1000000 \lor \neg \left(\frac{z}{t} \leq 0.0005\right):\\
    \;\;\;\;\frac{y - x}{t} \cdot z\\
    
    \mathbf{else}:\\
    \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if (/.f64 z t) < -1e6 or 5.0000000000000001e-4 < (/.f64 z t)

      1. Initial program 96.8%

        \[x + \left(y - x\right) \cdot \frac{z}{t} \]
      2. Add Preprocessing
      3. Taylor expanded in z around inf

        \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
      4. Step-by-step derivation
        1. div-subN/A

          \[\leadsto z \cdot \color{blue}{\frac{y - x}{t}} \]
        2. *-commutativeN/A

          \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
        3. lower-*.f64N/A

          \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
        4. lower-/.f64N/A

          \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z \]
        5. lower--.f6492.6

          \[\leadsto \frac{\color{blue}{y - x}}{t} \cdot z \]
      5. Applied rewrites92.6%

        \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]

      if -1e6 < (/.f64 z t) < 5.0000000000000001e-4

      1. Initial program 99.8%

        \[x + \left(y - x\right) \cdot \frac{z}{t} \]
      2. Add Preprocessing
      3. Step-by-step derivation
        1. lift-+.f64N/A

          \[\leadsto \color{blue}{x + \left(y - x\right) \cdot \frac{z}{t}} \]
        2. +-commutativeN/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
        3. lift-*.f64N/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
        4. *-commutativeN/A

          \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right)} + x \]
        5. lower-fma.f6499.9

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
      4. Applied rewrites99.9%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
      5. Step-by-step derivation
        1. lift-fma.f64N/A

          \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right) + x} \]
        2. *-commutativeN/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
        3. lift-/.f64N/A

          \[\leadsto \left(y - x\right) \cdot \color{blue}{\frac{z}{t}} + x \]
        4. associate-*r/N/A

          \[\leadsto \color{blue}{\frac{\left(y - x\right) \cdot z}{t}} + x \]
        5. associate-*l/N/A

          \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} + x \]
        6. lift-/.f64N/A

          \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z + x \]
        7. lower-fma.f6492.4

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
      6. Applied rewrites92.4%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
      7. Taylor expanded in x around 0

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
      8. Step-by-step derivation
        1. lower-/.f6492.9

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
      9. Applied rewrites92.9%

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
    3. Recombined 2 regimes into one program.
    4. Final simplification92.7%

      \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1000000 \lor \neg \left(\frac{z}{t} \leq 0.0005\right):\\ \;\;\;\;\frac{y - x}{t} \cdot z\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \end{array} \]
    5. Add Preprocessing

    Alternative 4: 73.6% accurate, 0.4× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq 200000000:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \mathbf{elif}\;\frac{z}{t} \leq 10^{+236}:\\ \;\;\;\;\frac{\left(-x\right) \cdot z}{t}\\ \mathbf{else}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \end{array} \end{array} \]
    (FPCore (x y z t)
     :precision binary64
     (if (<= (/ z t) 200000000.0)
       (fma (/ y t) z x)
       (if (<= (/ z t) 1e+236) (/ (* (- x) z) t) (* y (/ z t)))))
    double code(double x, double y, double z, double t) {
    	double tmp;
    	if ((z / t) <= 200000000.0) {
    		tmp = fma((y / t), z, x);
    	} else if ((z / t) <= 1e+236) {
    		tmp = (-x * z) / t;
    	} else {
    		tmp = y * (z / t);
    	}
    	return tmp;
    }
    
    function code(x, y, z, t)
    	tmp = 0.0
    	if (Float64(z / t) <= 200000000.0)
    		tmp = fma(Float64(y / t), z, x);
    	elseif (Float64(z / t) <= 1e+236)
    		tmp = Float64(Float64(Float64(-x) * z) / t);
    	else
    		tmp = Float64(y * Float64(z / t));
    	end
    	return tmp
    end
    
    code[x_, y_, z_, t_] := If[LessEqual[N[(z / t), $MachinePrecision], 200000000.0], N[(N[(y / t), $MachinePrecision] * z + x), $MachinePrecision], If[LessEqual[N[(z / t), $MachinePrecision], 1e+236], N[(N[((-x) * z), $MachinePrecision] / t), $MachinePrecision], N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;\frac{z}{t} \leq 200000000:\\
    \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\
    
    \mathbf{elif}\;\frac{z}{t} \leq 10^{+236}:\\
    \;\;\;\;\frac{\left(-x\right) \cdot z}{t}\\
    
    \mathbf{else}:\\
    \;\;\;\;y \cdot \frac{z}{t}\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if (/.f64 z t) < 2e8

      1. Initial program 98.3%

        \[x + \left(y - x\right) \cdot \frac{z}{t} \]
      2. Add Preprocessing
      3. Step-by-step derivation
        1. lift-+.f64N/A

          \[\leadsto \color{blue}{x + \left(y - x\right) \cdot \frac{z}{t}} \]
        2. +-commutativeN/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
        3. lift-*.f64N/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
        4. *-commutativeN/A

          \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right)} + x \]
        5. lower-fma.f6498.3

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
      4. Applied rewrites98.3%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
      5. Step-by-step derivation
        1. lift-fma.f64N/A

          \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right) + x} \]
        2. *-commutativeN/A

          \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
        3. lift-/.f64N/A

          \[\leadsto \left(y - x\right) \cdot \color{blue}{\frac{z}{t}} + x \]
        4. associate-*r/N/A

          \[\leadsto \color{blue}{\frac{\left(y - x\right) \cdot z}{t}} + x \]
        5. associate-*l/N/A

          \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} + x \]
        6. lift-/.f64N/A

          \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z + x \]
        7. lower-fma.f6492.7

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
      6. Applied rewrites92.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
      7. Taylor expanded in x around 0

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
      8. Step-by-step derivation
        1. lower-/.f6482.9

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
      9. Applied rewrites82.9%

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

      if 2e8 < (/.f64 z t) < 1.00000000000000005e236

      1. Initial program 99.6%

        \[x + \left(y - x\right) \cdot \frac{z}{t} \]
      2. Add Preprocessing
      3. Taylor expanded in z around inf

        \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
      4. Step-by-step derivation
        1. div-subN/A

          \[\leadsto z \cdot \color{blue}{\frac{y - x}{t}} \]
        2. *-commutativeN/A

          \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
        3. lower-*.f64N/A

          \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
        4. lower-/.f64N/A

          \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z \]
        5. lower--.f6486.7

          \[\leadsto \frac{\color{blue}{y - x}}{t} \cdot z \]
      5. Applied rewrites86.7%

        \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
      6. Step-by-step derivation
        1. Applied rewrites91.8%

          \[\leadsto \frac{\left(y - x\right) \cdot z}{\color{blue}{t}} \]
        2. Taylor expanded in x around inf

          \[\leadsto \frac{-1 \cdot \left(x \cdot z\right)}{t} \]
        3. Step-by-step derivation
          1. Applied rewrites65.0%

            \[\leadsto \frac{\left(-x\right) \cdot z}{t} \]

          if 1.00000000000000005e236 < (/.f64 z t)

          1. Initial program 97.0%

            \[x + \left(y - x\right) \cdot \frac{z}{t} \]
          2. Add Preprocessing
          3. Taylor expanded in x around 0

            \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
          4. Step-by-step derivation
            1. associate-*l/N/A

              \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
            2. lower-*.f64N/A

              \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
            3. lower-/.f6470.5

              \[\leadsto \color{blue}{\frac{y}{t}} \cdot z \]
          5. Applied rewrites70.5%

            \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
          6. Step-by-step derivation
            1. Applied rewrites78.9%

              \[\leadsto y \cdot \color{blue}{\frac{z}{t}} \]
          7. Recombined 3 regimes into one program.
          8. Add Preprocessing

          Alternative 5: 73.7% accurate, 0.4× speedup?

          \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq 200000000:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \mathbf{elif}\;\frac{z}{t} \leq 10^{+236}:\\ \;\;\;\;\frac{-x}{t} \cdot z\\ \mathbf{else}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \end{array} \end{array} \]
          (FPCore (x y z t)
           :precision binary64
           (if (<= (/ z t) 200000000.0)
             (fma (/ y t) z x)
             (if (<= (/ z t) 1e+236) (* (/ (- x) t) z) (* y (/ z t)))))
          double code(double x, double y, double z, double t) {
          	double tmp;
          	if ((z / t) <= 200000000.0) {
          		tmp = fma((y / t), z, x);
          	} else if ((z / t) <= 1e+236) {
          		tmp = (-x / t) * z;
          	} else {
          		tmp = y * (z / t);
          	}
          	return tmp;
          }
          
          function code(x, y, z, t)
          	tmp = 0.0
          	if (Float64(z / t) <= 200000000.0)
          		tmp = fma(Float64(y / t), z, x);
          	elseif (Float64(z / t) <= 1e+236)
          		tmp = Float64(Float64(Float64(-x) / t) * z);
          	else
          		tmp = Float64(y * Float64(z / t));
          	end
          	return tmp
          end
          
          code[x_, y_, z_, t_] := If[LessEqual[N[(z / t), $MachinePrecision], 200000000.0], N[(N[(y / t), $MachinePrecision] * z + x), $MachinePrecision], If[LessEqual[N[(z / t), $MachinePrecision], 1e+236], N[(N[((-x) / t), $MachinePrecision] * z), $MachinePrecision], N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]]]
          
          \begin{array}{l}
          
          \\
          \begin{array}{l}
          \mathbf{if}\;\frac{z}{t} \leq 200000000:\\
          \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\
          
          \mathbf{elif}\;\frac{z}{t} \leq 10^{+236}:\\
          \;\;\;\;\frac{-x}{t} \cdot z\\
          
          \mathbf{else}:\\
          \;\;\;\;y \cdot \frac{z}{t}\\
          
          
          \end{array}
          \end{array}
          
          Derivation
          1. Split input into 3 regimes
          2. if (/.f64 z t) < 2e8

            1. Initial program 98.3%

              \[x + \left(y - x\right) \cdot \frac{z}{t} \]
            2. Add Preprocessing
            3. Step-by-step derivation
              1. lift-+.f64N/A

                \[\leadsto \color{blue}{x + \left(y - x\right) \cdot \frac{z}{t}} \]
              2. +-commutativeN/A

                \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
              3. lift-*.f64N/A

                \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
              4. *-commutativeN/A

                \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right)} + x \]
              5. lower-fma.f6498.3

                \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
            4. Applied rewrites98.3%

              \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
            5. Step-by-step derivation
              1. lift-fma.f64N/A

                \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right) + x} \]
              2. *-commutativeN/A

                \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
              3. lift-/.f64N/A

                \[\leadsto \left(y - x\right) \cdot \color{blue}{\frac{z}{t}} + x \]
              4. associate-*r/N/A

                \[\leadsto \color{blue}{\frac{\left(y - x\right) \cdot z}{t}} + x \]
              5. associate-*l/N/A

                \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} + x \]
              6. lift-/.f64N/A

                \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z + x \]
              7. lower-fma.f6492.7

                \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
            6. Applied rewrites92.7%

              \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
            7. Taylor expanded in x around 0

              \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
            8. Step-by-step derivation
              1. lower-/.f6482.9

                \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
            9. Applied rewrites82.9%

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

            if 2e8 < (/.f64 z t) < 1.00000000000000005e236

            1. Initial program 99.6%

              \[x + \left(y - x\right) \cdot \frac{z}{t} \]
            2. Add Preprocessing
            3. Taylor expanded in z around inf

              \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
            4. Step-by-step derivation
              1. div-subN/A

                \[\leadsto z \cdot \color{blue}{\frac{y - x}{t}} \]
              2. *-commutativeN/A

                \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
              3. lower-*.f64N/A

                \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
              4. lower-/.f64N/A

                \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z \]
              5. lower--.f6486.7

                \[\leadsto \frac{\color{blue}{y - x}}{t} \cdot z \]
            5. Applied rewrites86.7%

              \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} \]
            6. Taylor expanded in x around inf

              \[\leadsto \left(-1 \cdot \frac{x}{t}\right) \cdot z \]
            7. Step-by-step derivation
              1. Applied rewrites57.4%

                \[\leadsto \frac{-x}{t} \cdot z \]

              if 1.00000000000000005e236 < (/.f64 z t)

              1. Initial program 97.0%

                \[x + \left(y - x\right) \cdot \frac{z}{t} \]
              2. Add Preprocessing
              3. Taylor expanded in x around 0

                \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
              4. Step-by-step derivation
                1. associate-*l/N/A

                  \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
                2. lower-*.f64N/A

                  \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
                3. lower-/.f6470.5

                  \[\leadsto \color{blue}{\frac{y}{t}} \cdot z \]
              5. Applied rewrites70.5%

                \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
              6. Step-by-step derivation
                1. Applied rewrites78.9%

                  \[\leadsto y \cdot \color{blue}{\frac{z}{t}} \]
              7. Recombined 3 regimes into one program.
              8. Add Preprocessing

              Alternative 6: 74.7% accurate, 0.7× speedup?

              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq 50000:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \end{array} \end{array} \]
              (FPCore (x y z t)
               :precision binary64
               (if (<= (/ z t) 50000.0) (fma (/ y t) z x) (* y (/ z t))))
              double code(double x, double y, double z, double t) {
              	double tmp;
              	if ((z / t) <= 50000.0) {
              		tmp = fma((y / t), z, x);
              	} else {
              		tmp = y * (z / t);
              	}
              	return tmp;
              }
              
              function code(x, y, z, t)
              	tmp = 0.0
              	if (Float64(z / t) <= 50000.0)
              		tmp = fma(Float64(y / t), z, x);
              	else
              		tmp = Float64(y * Float64(z / t));
              	end
              	return tmp
              end
              
              code[x_, y_, z_, t_] := If[LessEqual[N[(z / t), $MachinePrecision], 50000.0], N[(N[(y / t), $MachinePrecision] * z + x), $MachinePrecision], N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]]
              
              \begin{array}{l}
              
              \\
              \begin{array}{l}
              \mathbf{if}\;\frac{z}{t} \leq 50000:\\
              \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\
              
              \mathbf{else}:\\
              \;\;\;\;y \cdot \frac{z}{t}\\
              
              
              \end{array}
              \end{array}
              
              Derivation
              1. Split input into 2 regimes
              2. if (/.f64 z t) < 5e4

                1. Initial program 98.3%

                  \[x + \left(y - x\right) \cdot \frac{z}{t} \]
                2. Add Preprocessing
                3. Step-by-step derivation
                  1. lift-+.f64N/A

                    \[\leadsto \color{blue}{x + \left(y - x\right) \cdot \frac{z}{t}} \]
                  2. +-commutativeN/A

                    \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
                  3. lift-*.f64N/A

                    \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
                  4. *-commutativeN/A

                    \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right)} + x \]
                  5. lower-fma.f6498.3

                    \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
                4. Applied rewrites98.3%

                  \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
                5. Step-by-step derivation
                  1. lift-fma.f64N/A

                    \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right) + x} \]
                  2. *-commutativeN/A

                    \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
                  3. lift-/.f64N/A

                    \[\leadsto \left(y - x\right) \cdot \color{blue}{\frac{z}{t}} + x \]
                  4. associate-*r/N/A

                    \[\leadsto \color{blue}{\frac{\left(y - x\right) \cdot z}{t}} + x \]
                  5. associate-*l/N/A

                    \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} + x \]
                  6. lift-/.f64N/A

                    \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z + x \]
                  7. lower-fma.f6492.7

                    \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
                6. Applied rewrites92.7%

                  \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
                7. Taylor expanded in x around 0

                  \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
                8. Step-by-step derivation
                  1. lower-/.f6483.2

                    \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
                9. Applied rewrites83.2%

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

                if 5e4 < (/.f64 z t)

                1. Initial program 98.3%

                  \[x + \left(y - x\right) \cdot \frac{z}{t} \]
                2. Add Preprocessing
                3. Taylor expanded in x around 0

                  \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
                4. Step-by-step derivation
                  1. associate-*l/N/A

                    \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
                  2. lower-*.f64N/A

                    \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
                  3. lower-/.f6450.2

                    \[\leadsto \color{blue}{\frac{y}{t}} \cdot z \]
                5. Applied rewrites50.2%

                  \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
                6. Step-by-step derivation
                  1. Applied rewrites55.6%

                    \[\leadsto y \cdot \color{blue}{\frac{z}{t}} \]
                7. Recombined 2 regimes into one program.
                8. Add Preprocessing

                Alternative 7: 83.8% accurate, 0.7× speedup?

                \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -9.5 \cdot 10^{-60} \lor \neg \left(x \leq 6.8 \cdot 10^{+34}\right):\\ \;\;\;\;\left(1 - \frac{z}{t}\right) \cdot x\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \end{array} \end{array} \]
                (FPCore (x y z t)
                 :precision binary64
                 (if (or (<= x -9.5e-60) (not (<= x 6.8e+34)))
                   (* (- 1.0 (/ z t)) x)
                   (fma (/ y t) z x)))
                double code(double x, double y, double z, double t) {
                	double tmp;
                	if ((x <= -9.5e-60) || !(x <= 6.8e+34)) {
                		tmp = (1.0 - (z / t)) * x;
                	} else {
                		tmp = fma((y / t), z, x);
                	}
                	return tmp;
                }
                
                function code(x, y, z, t)
                	tmp = 0.0
                	if ((x <= -9.5e-60) || !(x <= 6.8e+34))
                		tmp = Float64(Float64(1.0 - Float64(z / t)) * x);
                	else
                		tmp = fma(Float64(y / t), z, x);
                	end
                	return tmp
                end
                
                code[x_, y_, z_, t_] := If[Or[LessEqual[x, -9.5e-60], N[Not[LessEqual[x, 6.8e+34]], $MachinePrecision]], N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * x), $MachinePrecision], N[(N[(y / t), $MachinePrecision] * z + x), $MachinePrecision]]
                
                \begin{array}{l}
                
                \\
                \begin{array}{l}
                \mathbf{if}\;x \leq -9.5 \cdot 10^{-60} \lor \neg \left(x \leq 6.8 \cdot 10^{+34}\right):\\
                \;\;\;\;\left(1 - \frac{z}{t}\right) \cdot x\\
                
                \mathbf{else}:\\
                \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\
                
                
                \end{array}
                \end{array}
                
                Derivation
                1. Split input into 2 regimes
                2. if x < -9.49999999999999958e-60 or 6.7999999999999999e34 < x

                  1. Initial program 99.2%

                    \[x + \left(y - x\right) \cdot \frac{z}{t} \]
                  2. Add Preprocessing
                  3. Taylor expanded in x around inf

                    \[\leadsto \color{blue}{x \cdot \left(1 + -1 \cdot \frac{z}{t}\right)} \]
                  4. Step-by-step derivation
                    1. *-commutativeN/A

                      \[\leadsto \color{blue}{\left(1 + -1 \cdot \frac{z}{t}\right) \cdot x} \]
                    2. lower-*.f64N/A

                      \[\leadsto \color{blue}{\left(1 + -1 \cdot \frac{z}{t}\right) \cdot x} \]
                    3. fp-cancel-sign-sub-invN/A

                      \[\leadsto \color{blue}{\left(1 - \left(\mathsf{neg}\left(-1\right)\right) \cdot \frac{z}{t}\right)} \cdot x \]
                    4. metadata-evalN/A

                      \[\leadsto \left(1 - \color{blue}{1} \cdot \frac{z}{t}\right) \cdot x \]
                    5. *-lft-identityN/A

                      \[\leadsto \left(1 - \color{blue}{\frac{z}{t}}\right) \cdot x \]
                    6. lower--.f64N/A

                      \[\leadsto \color{blue}{\left(1 - \frac{z}{t}\right)} \cdot x \]
                    7. lower-/.f6487.0

                      \[\leadsto \left(1 - \color{blue}{\frac{z}{t}}\right) \cdot x \]
                  5. Applied rewrites87.0%

                    \[\leadsto \color{blue}{\left(1 - \frac{z}{t}\right) \cdot x} \]

                  if -9.49999999999999958e-60 < x < 6.7999999999999999e34

                  1. Initial program 97.4%

                    \[x + \left(y - x\right) \cdot \frac{z}{t} \]
                  2. Add Preprocessing
                  3. Step-by-step derivation
                    1. lift-+.f64N/A

                      \[\leadsto \color{blue}{x + \left(y - x\right) \cdot \frac{z}{t}} \]
                    2. +-commutativeN/A

                      \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
                    3. lift-*.f64N/A

                      \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
                    4. *-commutativeN/A

                      \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right)} + x \]
                    5. lower-fma.f6497.4

                      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
                  4. Applied rewrites97.4%

                    \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, y - x, x\right)} \]
                  5. Step-by-step derivation
                    1. lift-fma.f64N/A

                      \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right) + x} \]
                    2. *-commutativeN/A

                      \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
                    3. lift-/.f64N/A

                      \[\leadsto \left(y - x\right) \cdot \color{blue}{\frac{z}{t}} + x \]
                    4. associate-*r/N/A

                      \[\leadsto \color{blue}{\frac{\left(y - x\right) \cdot z}{t}} + x \]
                    5. associate-*l/N/A

                      \[\leadsto \color{blue}{\frac{y - x}{t} \cdot z} + x \]
                    6. lift-/.f64N/A

                      \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z + x \]
                    7. lower-fma.f6494.2

                      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
                  6. Applied rewrites94.2%

                    \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y - x}{t}, z, x\right)} \]
                  7. Taylor expanded in x around 0

                    \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
                  8. Step-by-step derivation
                    1. lower-/.f6489.4

                      \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
                  9. Applied rewrites89.4%

                    \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{t}}, z, x\right) \]
                3. Recombined 2 regimes into one program.
                4. Final simplification88.1%

                  \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -9.5 \cdot 10^{-60} \lor \neg \left(x \leq 6.8 \cdot 10^{+34}\right):\\ \;\;\;\;\left(1 - \frac{z}{t}\right) \cdot x\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z, x\right)\\ \end{array} \]
                5. Add Preprocessing

                Alternative 8: 93.1% accurate, 1.1× speedup?

                \[\begin{array}{l} \\ \mathsf{fma}\left(z, \frac{y - x}{t}, x\right) \end{array} \]
                (FPCore (x y z t) :precision binary64 (fma z (/ (- y x) t) x))
                double code(double x, double y, double z, double t) {
                	return fma(z, ((y - x) / t), x);
                }
                
                function code(x, y, z, t)
                	return fma(z, Float64(Float64(y - x) / t), x)
                end
                
                code[x_, y_, z_, t_] := N[(z * N[(N[(y - x), $MachinePrecision] / t), $MachinePrecision] + x), $MachinePrecision]
                
                \begin{array}{l}
                
                \\
                \mathsf{fma}\left(z, \frac{y - x}{t}, x\right)
                \end{array}
                
                Derivation
                1. Initial program 98.3%

                  \[x + \left(y - x\right) \cdot \frac{z}{t} \]
                2. Add Preprocessing
                3. Step-by-step derivation
                  1. lift-+.f64N/A

                    \[\leadsto \color{blue}{x + \left(y - x\right) \cdot \frac{z}{t}} \]
                  2. +-commutativeN/A

                    \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
                  3. lift-*.f64N/A

                    \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t}} + x \]
                  4. *-commutativeN/A

                    \[\leadsto \color{blue}{\frac{z}{t} \cdot \left(y - x\right)} + x \]
                  5. lift-/.f64N/A

                    \[\leadsto \color{blue}{\frac{z}{t}} \cdot \left(y - x\right) + x \]
                  6. associate-*l/N/A

                    \[\leadsto \color{blue}{\frac{z \cdot \left(y - x\right)}{t}} + x \]
                  7. associate-/l*N/A

                    \[\leadsto \color{blue}{z \cdot \frac{y - x}{t}} + x \]
                  8. lower-fma.f64N/A

                    \[\leadsto \color{blue}{\mathsf{fma}\left(z, \frac{y - x}{t}, x\right)} \]
                  9. lower-/.f6492.8

                    \[\leadsto \mathsf{fma}\left(z, \color{blue}{\frac{y - x}{t}}, x\right) \]
                4. Applied rewrites92.8%

                  \[\leadsto \color{blue}{\mathsf{fma}\left(z, \frac{y - x}{t}, x\right)} \]
                5. Add Preprocessing

                Alternative 9: 41.5% accurate, 1.4× speedup?

                \[\begin{array}{l} \\ y \cdot \frac{z}{t} \end{array} \]
                (FPCore (x y z t) :precision binary64 (* y (/ z t)))
                double code(double x, double y, double z, double t) {
                	return y * (z / t);
                }
                
                real(8) function code(x, y, z, t)
                    real(8), intent (in) :: x
                    real(8), intent (in) :: y
                    real(8), intent (in) :: z
                    real(8), intent (in) :: t
                    code = y * (z / t)
                end function
                
                public static double code(double x, double y, double z, double t) {
                	return y * (z / t);
                }
                
                def code(x, y, z, t):
                	return y * (z / t)
                
                function code(x, y, z, t)
                	return Float64(y * Float64(z / t))
                end
                
                function tmp = code(x, y, z, t)
                	tmp = y * (z / t);
                end
                
                code[x_, y_, z_, t_] := N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]
                
                \begin{array}{l}
                
                \\
                y \cdot \frac{z}{t}
                \end{array}
                
                Derivation
                1. Initial program 98.3%

                  \[x + \left(y - x\right) \cdot \frac{z}{t} \]
                2. Add Preprocessing
                3. Taylor expanded in x around 0

                  \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
                4. Step-by-step derivation
                  1. associate-*l/N/A

                    \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
                  2. lower-*.f64N/A

                    \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
                  3. lower-/.f6442.2

                    \[\leadsto \color{blue}{\frac{y}{t}} \cdot z \]
                5. Applied rewrites42.2%

                  \[\leadsto \color{blue}{\frac{y}{t} \cdot z} \]
                6. Step-by-step derivation
                  1. Applied rewrites45.8%

                    \[\leadsto y \cdot \color{blue}{\frac{z}{t}} \]
                  2. Add Preprocessing

                  Developer Target 1: 97.6% accurate, 0.3× speedup?

                  \[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(y - x\right) \cdot \frac{z}{t}\\ t_2 := x + \frac{y - x}{\frac{t}{z}}\\ \mathbf{if}\;t\_1 < -1013646692435.8867:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t\_1 < 0:\\ \;\;\;\;x + \frac{\left(y - x\right) \cdot z}{t}\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
                  (FPCore (x y z t)
                   :precision binary64
                   (let* ((t_1 (* (- y x) (/ z t))) (t_2 (+ x (/ (- y x) (/ t z)))))
                     (if (< t_1 -1013646692435.8867)
                       t_2
                       (if (< t_1 0.0) (+ x (/ (* (- y x) z) t)) t_2))))
                  double code(double x, double y, double z, double t) {
                  	double t_1 = (y - x) * (z / t);
                  	double t_2 = x + ((y - x) / (t / z));
                  	double tmp;
                  	if (t_1 < -1013646692435.8867) {
                  		tmp = t_2;
                  	} else if (t_1 < 0.0) {
                  		tmp = x + (((y - x) * z) / t);
                  	} else {
                  		tmp = t_2;
                  	}
                  	return tmp;
                  }
                  
                  real(8) function code(x, y, z, t)
                      real(8), intent (in) :: x
                      real(8), intent (in) :: y
                      real(8), intent (in) :: z
                      real(8), intent (in) :: t
                      real(8) :: t_1
                      real(8) :: t_2
                      real(8) :: tmp
                      t_1 = (y - x) * (z / t)
                      t_2 = x + ((y - x) / (t / z))
                      if (t_1 < (-1013646692435.8867d0)) then
                          tmp = t_2
                      else if (t_1 < 0.0d0) then
                          tmp = x + (((y - x) * z) / t)
                      else
                          tmp = t_2
                      end if
                      code = tmp
                  end function
                  
                  public static double code(double x, double y, double z, double t) {
                  	double t_1 = (y - x) * (z / t);
                  	double t_2 = x + ((y - x) / (t / z));
                  	double tmp;
                  	if (t_1 < -1013646692435.8867) {
                  		tmp = t_2;
                  	} else if (t_1 < 0.0) {
                  		tmp = x + (((y - x) * z) / t);
                  	} else {
                  		tmp = t_2;
                  	}
                  	return tmp;
                  }
                  
                  def code(x, y, z, t):
                  	t_1 = (y - x) * (z / t)
                  	t_2 = x + ((y - x) / (t / z))
                  	tmp = 0
                  	if t_1 < -1013646692435.8867:
                  		tmp = t_2
                  	elif t_1 < 0.0:
                  		tmp = x + (((y - x) * z) / t)
                  	else:
                  		tmp = t_2
                  	return tmp
                  
                  function code(x, y, z, t)
                  	t_1 = Float64(Float64(y - x) * Float64(z / t))
                  	t_2 = Float64(x + Float64(Float64(y - x) / Float64(t / z)))
                  	tmp = 0.0
                  	if (t_1 < -1013646692435.8867)
                  		tmp = t_2;
                  	elseif (t_1 < 0.0)
                  		tmp = Float64(x + Float64(Float64(Float64(y - x) * z) / t));
                  	else
                  		tmp = t_2;
                  	end
                  	return tmp
                  end
                  
                  function tmp_2 = code(x, y, z, t)
                  	t_1 = (y - x) * (z / t);
                  	t_2 = x + ((y - x) / (t / z));
                  	tmp = 0.0;
                  	if (t_1 < -1013646692435.8867)
                  		tmp = t_2;
                  	elseif (t_1 < 0.0)
                  		tmp = x + (((y - x) * z) / t);
                  	else
                  		tmp = t_2;
                  	end
                  	tmp_2 = tmp;
                  end
                  
                  code[x_, y_, z_, t_] := Block[{t$95$1 = N[(N[(y - x), $MachinePrecision] * N[(z / t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(N[(y - x), $MachinePrecision] / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t$95$1, -1013646692435.8867], t$95$2, If[Less[t$95$1, 0.0], N[(x + N[(N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], t$95$2]]]]
                  
                  \begin{array}{l}
                  
                  \\
                  \begin{array}{l}
                  t_1 := \left(y - x\right) \cdot \frac{z}{t}\\
                  t_2 := x + \frac{y - x}{\frac{t}{z}}\\
                  \mathbf{if}\;t\_1 < -1013646692435.8867:\\
                  \;\;\;\;t\_2\\
                  
                  \mathbf{elif}\;t\_1 < 0:\\
                  \;\;\;\;x + \frac{\left(y - x\right) \cdot z}{t}\\
                  
                  \mathbf{else}:\\
                  \;\;\;\;t\_2\\
                  
                  
                  \end{array}
                  \end{array}
                  

                  Reproduce

                  ?
                  herbie shell --seed 2024329 
                  (FPCore (x y z t)
                    :name "Graphics.Rendering.Plot.Render.Plot.Axis:tickPosition from plot-0.2.3.4"
                    :precision binary64
                  
                    :alt
                    (! :herbie-platform default (if (< (* (- y x) (/ z t)) -10136466924358867/10000) (+ x (/ (- y x) (/ t z))) (if (< (* (- y x) (/ z t)) 0) (+ x (/ (* (- y x) z) t)) (+ x (/ (- y x) (/ t z))))))
                  
                    (+ x (* (- y x) (/ z t))))