Diagrams.Backend.Rasterific:$crender from diagrams-rasterific-1.3.1.3

Average Error: 0.0 → 0.0

Time: 4.6s

Precision: binary64

Cost: 6848

Math

\[x \cdot y + \left(1 - x\right) \cdot z \]

↓

\[\mathsf{fma}\left(y, x, \left(1 - x\right) \cdot z\right) \]

FPCore

(FPCore (x y z) :precision binary64 (+ (* x y) (* (- 1.0 x) z)))

↓

(FPCore (x y z) :precision binary64 (fma y x (* (- 1.0 x) z)))

C

double code(double x, double y, double z) {
	return (x * y) + ((1.0 - x) * z);
}

↓

double code(double x, double y, double z) {
	return fma(y, x, ((1.0 - x) * z));
}

Julia

function code(x, y, z)
	return Float64(Float64(x * y) + Float64(Float64(1.0 - x) * z))
end

↓

function code(x, y, z)
	return fma(y, x, Float64(Float64(1.0 - x) * z))
end

Wolfram

code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(1.0 - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]

↓

code[x_, y_, z_] := N[(y * x + N[(N[(1.0 - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]

Derivation

1. Initial program 0.0

   \[x \cdot y + \left(1 - x\right) \cdot z \]

2. Applied egg-rr 0.0

   \[\leadsto \color{blue}{\mathsf{fma}\left(y, x, \left(1 - x\right) \cdot z\right)} \]

3. Final simplification 0.0

   \[\leadsto \mathsf{fma}\left(y, x, \left(1 - x\right) \cdot z\right) \]

Alternatives

Alternative 1
Error	8.3
Cost	1112

\[\begin{array}{l} t_0 := z + y \cdot x\\ t_1 := z - x \cdot z\\ \mathbf{if}\;y \leq -2.5915916961252376 \cdot 10^{+42}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;y \leq -0.055749506320730155:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq -5.466783102911237 \cdot 10^{-67}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;y \leq 7.814177943791391 \cdot 10^{-66}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq 2.1226622071452355 \cdot 10^{-26}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;y \leq 201076203.38887015:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \]

Alternative 2
Error	23.5
Cost	784

\[\begin{array}{l} t_0 := x \cdot \left(-z\right)\\ \mathbf{if}\;x \leq -274176822964341700:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq -1.7037420070196744 \cdot 10^{-28}:\\ \;\;\;\;y \cdot x\\ \mathbf{elif}\;x \leq 5.4850829834804725 \cdot 10^{-40}:\\ \;\;\;\;z\\ \mathbf{elif}\;x \leq 2.8 \cdot 10^{+68}:\\ \;\;\;\;y \cdot x\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \]

Alternative 3
Error	16.2
Cost	584

\[\begin{array}{l} t_0 := z - x \cdot z\\ \mathbf{if}\;z \leq -7.043421958014651 \cdot 10^{-171}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;z \leq 2.3433590642581154 \cdot 10^{-88}:\\ \;\;\;\;y \cdot x\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \]

Alternative 4
Error	1.0
Cost	584

\[\begin{array}{l} t_0 := x \cdot \left(y - z\right)\\ \mathbf{if}\;x \leq -274176822964341700:\\ \;\;\;\;t_0\\ \mathbf{elif}\;x \leq 0.0077794395830085945:\\ \;\;\;\;z + y \cdot x\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \]

Alternative 5
Error	1.0
Cost	584

\[\begin{array}{l} \mathbf{if}\;x \leq -274176822964341700:\\ \;\;\;\;y \cdot x - x \cdot z\\ \mathbf{elif}\;x \leq 0.0077794395830085945:\\ \;\;\;\;z + y \cdot x\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(y - z\right)\\ \end{array} \]

Alternative 6
Error	23.5
Cost	456

\[\begin{array}{l} \mathbf{if}\;x \leq -1.7037420070196744 \cdot 10^{-28}:\\ \;\;\;\;y \cdot x\\ \mathbf{elif}\;x \leq 5.4850829834804725 \cdot 10^{-40}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;y \cdot x\\ \end{array} \]

Alternative 7
Error	0.0
Cost	448

\[z + x \cdot \left(y - z\right) \]

Alternative 8
Error	35.0
Cost	64

\[z \]

Reproduce

herbie shell --seed 2022313 
(FPCore (x y z)
  :name "Diagrams.Backend.Rasterific:$crender from diagrams-rasterific-1.3.1.3"
  :precision binary64
  (+ (* x y) (* (- 1.0 x) z)))