
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)) (t_1 (+ t_0 7.0)) (t_2 (+ t_1 0.5)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(* (* (sqrt (* (PI) 2.0)) (pow t_2 (+ t_0 0.5))) (exp (- t_2)))
(+
(+
(+
(+
(+
(+
(+
(+ 0.9999999999998099 (/ 676.5203681218851 (+ t_0 1.0)))
(/ -1259.1392167224028 (+ t_0 2.0)))
(/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 t_1))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
t_1 := t\_0 + 7\\
t_2 := t\_1 + 0.5\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(\left(\left(\sqrt{\mathsf{PI}\left(\right) \cdot 2} \cdot {t\_2}^{\left(t\_0 + 0.5\right)}\right) \cdot e^{-t\_2}\right) \cdot \left(\left(\left(\left(\left(\left(\left(\left(0.9999999999998099 + \frac{676.5203681218851}{t\_0 + 1}\right) + \frac{-1259.1392167224028}{t\_0 + 2}\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_1}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 10 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)) (t_1 (+ t_0 7.0)) (t_2 (+ t_1 0.5)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(* (* (sqrt (* (PI) 2.0)) (pow t_2 (+ t_0 0.5))) (exp (- t_2)))
(+
(+
(+
(+
(+
(+
(+
(+ 0.9999999999998099 (/ 676.5203681218851 (+ t_0 1.0)))
(/ -1259.1392167224028 (+ t_0 2.0)))
(/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 t_1))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
t_1 := t\_0 + 7\\
t_2 := t\_1 + 0.5\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(\left(\left(\sqrt{\mathsf{PI}\left(\right) \cdot 2} \cdot {t\_2}^{\left(t\_0 + 0.5\right)}\right) \cdot e^{-t\_2}\right) \cdot \left(\left(\left(\left(\left(\left(\left(\left(0.9999999999998099 + \frac{676.5203681218851}{t\_0 + 1}\right) + \frac{-1259.1392167224028}{t\_0 + 2}\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_1}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(exp
(fma
(log (* (PI) 2.0))
0.5
(fma
(log (- (- 1.0 z) -6.5))
(/
(- 1.0 (pow (+ 0.5 z) 3.0))
(+ 1.0 (+ (pow (+ 0.5 z) 2.0) (+ 0.5 z))))
(+ (+ -1.0 z) -6.5))))
(+
(+
(+
(+
(+
(+
(fma
1259.1392167224028
(/ -1.0 (- (- 1.0 z) -1.0))
(+ (/ 676.5203681218851 (- 1.0 z)) 0.9999999999998099))
(/ 771.3234287776531 (+ t_0 3.0)))
(/
-176.6150291621406
(*
(+ 64.0 (pow t_0 3.0))
(pow (- (+ (pow t_0 2.0) 16.0) (* 4.0 t_0)) -1.0))))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (+ t_0 7.0)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(e^{\mathsf{fma}\left(\log \left(\mathsf{PI}\left(\right) \cdot 2\right), 0.5, \mathsf{fma}\left(\log \left(\left(1 - z\right) - -6.5\right), \frac{1 - {\left(0.5 + z\right)}^{3}}{1 + \left({\left(0.5 + z\right)}^{2} + \left(0.5 + z\right)\right)}, \left(-1 + z\right) + -6.5\right)\right)} \cdot \left(\left(\left(\left(\left(\left(\mathsf{fma}\left(1259.1392167224028, \frac{-1}{\left(1 - z\right) - -1}, \frac{676.5203681218851}{1 - z} + 0.9999999999998099\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{\left(64 + {t\_0}^{3}\right) \cdot {\left(\left({t\_0}^{2} + 16\right) - 4 \cdot t\_0\right)}^{-1}}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_0 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-sqrt.f64N/A
pow1/2N/A
pow-to-expN/A
lift-pow.f64N/A
pow-to-expN/A
lift-exp.f64N/A
prod-expN/A
Applied rewrites97.8%
lift--.f64N/A
lift--.f64N/A
associate--l-N/A
flip3--N/A
lower-/.f64N/A
metadata-evalN/A
lower--.f64N/A
lower-pow.f64N/A
+-commutativeN/A
lower-+.f64N/A
metadata-evalN/A
lower-+.f64N/A
lower-+.f64N/A
pow2N/A
lower-pow.f64N/A
+-commutativeN/A
lower-+.f64N/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6497.8
Applied rewrites97.8%
lift-+.f64N/A
+-commutativeN/A
lift-/.f64N/A
frac-2negN/A
div-invN/A
lower-fma.f64N/A
metadata-evalN/A
lower-/.f64N/A
lower-neg.f6497.8
lift-+.f64N/A
lift--.f64N/A
associate-+l-N/A
metadata-evalN/A
lower--.f6497.8
lift-+.f64N/A
+-commutativeN/A
lower-+.f6497.8
Applied rewrites97.8%
lift-+.f64N/A
flip3-+N/A
div-invN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f64N/A
metadata-evalN/A
lower-pow.f64N/A
lower-/.f64N/A
associate-+r-N/A
lower--.f64N/A
Applied rewrites97.8%
Final simplification97.8%
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(exp
(fma
(log (* (PI) 2.0))
0.5
(fma
(log (- (- 1.0 z) -6.5))
(/
(- 1.0 (pow (+ 0.5 z) 3.0))
(+ 1.0 (+ (pow (+ 0.5 z) 2.0) (+ 0.5 z))))
(+ (+ -1.0 z) -6.5))))
(+
(+
(+
(+
(+
(+
(fma
1259.1392167224028
(/ -1.0 (- (- 1.0 z) -1.0))
(+ (/ 676.5203681218851 (- 1.0 z)) 0.9999999999998099))
(/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (- 7.0 z)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(e^{\mathsf{fma}\left(\log \left(\mathsf{PI}\left(\right) \cdot 2\right), 0.5, \mathsf{fma}\left(\log \left(\left(1 - z\right) - -6.5\right), \frac{1 - {\left(0.5 + z\right)}^{3}}{1 + \left({\left(0.5 + z\right)}^{2} + \left(0.5 + z\right)\right)}, \left(-1 + z\right) + -6.5\right)\right)} \cdot \left(\left(\left(\left(\left(\left(\mathsf{fma}\left(1259.1392167224028, \frac{-1}{\left(1 - z\right) - -1}, \frac{676.5203681218851}{1 - z} + 0.9999999999998099\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{7 - z}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-sqrt.f64N/A
pow1/2N/A
pow-to-expN/A
lift-pow.f64N/A
pow-to-expN/A
lift-exp.f64N/A
prod-expN/A
Applied rewrites97.8%
lift--.f64N/A
lift--.f64N/A
associate--l-N/A
flip3--N/A
lower-/.f64N/A
metadata-evalN/A
lower--.f64N/A
lower-pow.f64N/A
+-commutativeN/A
lower-+.f64N/A
metadata-evalN/A
lower-+.f64N/A
lower-+.f64N/A
pow2N/A
lower-pow.f64N/A
+-commutativeN/A
lower-+.f64N/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6497.8
Applied rewrites97.8%
lift-+.f64N/A
+-commutativeN/A
lift-/.f64N/A
frac-2negN/A
div-invN/A
lower-fma.f64N/A
metadata-evalN/A
lower-/.f64N/A
lower-neg.f6497.8
lift-+.f64N/A
lift--.f64N/A
associate-+l-N/A
metadata-evalN/A
lower--.f6497.8
lift-+.f64N/A
+-commutativeN/A
lower-+.f6497.8
Applied rewrites97.8%
Taylor expanded in z around 0
mul-1-negN/A
unsub-negN/A
lower--.f6497.8
Applied rewrites97.8%
Final simplification97.8%
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(exp
(fma
(log (* (PI) 2.0))
0.5
(fma
(/ (- 1.0 (pow (+ 0.5 z) 3.0)) (fma (+ (+ 0.5 z) 1.0) (+ 0.5 z) 1.0))
(log1p (- (- z) -6.5))
(+ -1.0 (+ -6.5 z)))))
(+
(+
(+
(+
(+
(+
(+
(+ 0.9999999999998099 (/ 676.5203681218851 (+ t_0 1.0)))
(/ -1259.1392167224028 (+ t_0 2.0)))
(/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (+ t_0 7.0)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(e^{\mathsf{fma}\left(\log \left(\mathsf{PI}\left(\right) \cdot 2\right), 0.5, \mathsf{fma}\left(\frac{1 - {\left(0.5 + z\right)}^{3}}{\mathsf{fma}\left(\left(0.5 + z\right) + 1, 0.5 + z, 1\right)}, \mathsf{log1p}\left(\left(-z\right) - -6.5\right), -1 + \left(-6.5 + z\right)\right)\right)} \cdot \left(\left(\left(\left(\left(\left(\left(\left(0.9999999999998099 + \frac{676.5203681218851}{t\_0 + 1}\right) + \frac{-1259.1392167224028}{t\_0 + 2}\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_0 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-sqrt.f64N/A
pow1/2N/A
pow-to-expN/A
lift-pow.f64N/A
pow-to-expN/A
lift-exp.f64N/A
prod-expN/A
Applied rewrites97.8%
lift--.f64N/A
lift--.f64N/A
associate--l-N/A
flip3--N/A
lower-/.f64N/A
metadata-evalN/A
lower--.f64N/A
lower-pow.f64N/A
+-commutativeN/A
lower-+.f64N/A
metadata-evalN/A
lower-+.f64N/A
lower-+.f64N/A
pow2N/A
lower-pow.f64N/A
+-commutativeN/A
lower-+.f64N/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6497.8
Applied rewrites97.8%
lift-fma.f64N/A
*-commutativeN/A
lower-fma.f6497.8
Applied rewrites97.8%
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(exp
(fma
(log (* (PI) 2.0))
0.5
(fma (log (- (- 1.0 z) -6.5)) (- (- 1.0 z) 0.5) (+ (+ -1.0 z) -6.5))))
(+
(+
(+
(+
(+
(+
(+
(+ 0.9999999999998099 (/ 676.5203681218851 (+ t_0 1.0)))
(/ -1259.1392167224028 (+ t_0 2.0)))
(/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (+ t_0 7.0)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(e^{\mathsf{fma}\left(\log \left(\mathsf{PI}\left(\right) \cdot 2\right), 0.5, \mathsf{fma}\left(\log \left(\left(1 - z\right) - -6.5\right), \left(1 - z\right) - 0.5, \left(-1 + z\right) + -6.5\right)\right)} \cdot \left(\left(\left(\left(\left(\left(\left(\left(0.9999999999998099 + \frac{676.5203681218851}{t\_0 + 1}\right) + \frac{-1259.1392167224028}{t\_0 + 2}\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_0 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-sqrt.f64N/A
pow1/2N/A
pow-to-expN/A
lift-pow.f64N/A
pow-to-expN/A
lift-exp.f64N/A
prod-expN/A
Applied rewrites97.8%
Final simplification97.8%
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(exp
(fma (log (* 2.0 (PI))) 0.5 (fma (log (- 7.5 z)) (- 0.5 z) (+ -7.5 z))))
(+
(+
(+
(+
(+
(+
(fma
1259.1392167224028
(/ -1.0 (- (- 1.0 z) -1.0))
(+ (/ 676.5203681218851 (- 1.0 z)) 0.9999999999998099))
(/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (+ t_0 7.0)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(e^{\mathsf{fma}\left(\log \left(2 \cdot \mathsf{PI}\left(\right)\right), 0.5, \mathsf{fma}\left(\log \left(7.5 - z\right), 0.5 - z, -7.5 + z\right)\right)} \cdot \left(\left(\left(\left(\left(\left(\mathsf{fma}\left(1259.1392167224028, \frac{-1}{\left(1 - z\right) - -1}, \frac{676.5203681218851}{1 - z} + 0.9999999999998099\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_0 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-sqrt.f64N/A
pow1/2N/A
pow-to-expN/A
lift-pow.f64N/A
pow-to-expN/A
lift-exp.f64N/A
prod-expN/A
Applied rewrites97.8%
lift--.f64N/A
lift--.f64N/A
associate--l-N/A
flip3--N/A
lower-/.f64N/A
metadata-evalN/A
lower--.f64N/A
lower-pow.f64N/A
+-commutativeN/A
lower-+.f64N/A
metadata-evalN/A
lower-+.f64N/A
lower-+.f64N/A
pow2N/A
lower-pow.f64N/A
+-commutativeN/A
lower-+.f64N/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6497.8
Applied rewrites97.8%
lift-+.f64N/A
+-commutativeN/A
lift-/.f64N/A
frac-2negN/A
div-invN/A
lower-fma.f64N/A
metadata-evalN/A
lower-/.f64N/A
lower-neg.f6497.8
lift-+.f64N/A
lift--.f64N/A
associate-+l-N/A
metadata-evalN/A
lower--.f6497.8
lift-+.f64N/A
+-commutativeN/A
lower-+.f6497.8
Applied rewrites97.8%
lift-*.f64N/A
*-commutativeN/A
lift-*.f6497.8
Applied rewrites97.8%
Final simplification97.8%
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(*
(sqrt (* (PI) 2.0))
(exp (fma (log1p (- (- z) -6.5)) (- (- 1.0 z) 0.5) (+ -1.0 (+ -6.5 z)))))
(+
(+
(+
(+
(+
(+
(fma
(fma
(fma 597.824167076735 z 519.1279660315847)
z
361.7355639412844)
z
47.95075976068351)
(/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (+ t_0 7.0)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(\left(\sqrt{\mathsf{PI}\left(\right) \cdot 2} \cdot e^{\mathsf{fma}\left(\mathsf{log1p}\left(\left(-z\right) - -6.5\right), \left(1 - z\right) - 0.5, -1 + \left(-6.5 + z\right)\right)}\right) \cdot \left(\left(\left(\left(\left(\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(597.824167076735, z, 519.1279660315847\right), z, 361.7355639412844\right), z, 47.95075976068351\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_0 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
Taylor expanded in z around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
lower-fma.f6496.6
Applied rewrites96.6%
lift-sqrt.f64N/A
lift-*.f64N/A
sqrt-prodN/A
lift-sqrt.f64N/A
lift-sqrt.f64N/A
lower-*.f6497.4
Applied rewrites97.4%
Applied rewrites97.4%
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(* (* (exp (- z 7.5)) (pow (- 7.5 z) (- 0.5 z))) (sqrt (* (PI) 2.0)))
(+
(+
(+
(+
(+
(+
(fma
(fma
(fma 597.824167076735 z 519.1279660315847)
z
361.7355639412844)
z
47.95075976068351)
(/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (+ t_0 7.0)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(\left(\left(e^{z - 7.5} \cdot {\left(7.5 - z\right)}^{\left(0.5 - z\right)}\right) \cdot \sqrt{\mathsf{PI}\left(\right) \cdot 2}\right) \cdot \left(\left(\left(\left(\left(\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(597.824167076735, z, 519.1279660315847\right), z, 361.7355639412844\right), z, 47.95075976068351\right) + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_0 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
Taylor expanded in z around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
lower-fma.f6496.6
Applied rewrites96.6%
Taylor expanded in z around 0
Applied rewrites95.1%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f64N/A
Applied rewrites95.1%
Taylor expanded in z around inf
*-commutativeN/A
sub-negN/A
remove-double-negN/A
mul-1-negN/A
distribute-neg-inN/A
+-commutativeN/A
lower-*.f64N/A
lower-exp.f64N/A
+-commutativeN/A
distribute-neg-inN/A
mul-1-negN/A
remove-double-negN/A
sub-negN/A
lower--.f64N/A
exp-to-powN/A
sub-negN/A
mul-1-negN/A
sub-negN/A
mul-1-negN/A
lower-pow.f64N/A
Applied rewrites96.6%
(FPCore (z)
:precision binary64
(let* ((t_0 (sqrt (sqrt (PI)))) (t_1 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(* (* t_0 t_0) (* (exp -7.5) (sqrt 15.0)))
(+
(+
(+
(+
(+
(+ 47.95075976068351 (/ 771.3234287776531 (+ t_1 3.0)))
(/ -176.6150291621406 (+ t_1 4.0)))
(/ 12.507343278686905 (+ t_1 5.0)))
(/ -0.13857109526572012 (+ t_1 6.0)))
(/ 9.984369578019572e-6 (+ t_1 7.0)))
(/ 1.5056327351493116e-7 (+ t_1 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt{\sqrt{\mathsf{PI}\left(\right)}}\\
t_1 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(\left(\left(t\_0 \cdot t\_0\right) \cdot \left(e^{-7.5} \cdot \sqrt{15}\right)\right) \cdot \left(\left(\left(\left(\left(\left(47.95075976068351 + \frac{771.3234287776531}{t\_1 + 3}\right) + \frac{-176.6150291621406}{t\_1 + 4}\right) + \frac{12.507343278686905}{t\_1 + 5}\right) + \frac{-0.13857109526572012}{t\_1 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_1 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_1 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f64N/A
lower-exp.f64N/A
lower-sqrt.f64N/A
lower-PI.f6493.7
Applied rewrites93.7%
Taylor expanded in z around 0
Applied rewrites95.0%
Applied rewrites95.0%
Applied rewrites95.8%
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(* (sqrt (PI)) (* (exp -7.5) (sqrt 15.0)))
(+
(+
(+
(+
(+
(+ 47.95075976068351 (/ 771.3234287776531 (+ t_0 3.0)))
(/ -176.6150291621406 4.0))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (+ t_0 7.0)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(\left(\sqrt{\mathsf{PI}\left(\right)} \cdot \left(e^{-7.5} \cdot \sqrt{15}\right)\right) \cdot \left(\left(\left(\left(\left(\left(47.95075976068351 + \frac{771.3234287776531}{t\_0 + 3}\right) + \frac{-176.6150291621406}{4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_0 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f64N/A
lower-exp.f64N/A
lower-sqrt.f64N/A
lower-PI.f6493.7
Applied rewrites93.7%
Taylor expanded in z around 0
Applied rewrites95.0%
Applied rewrites95.0%
Taylor expanded in z around 0
Applied rewrites95.0%
(FPCore (z)
:precision binary64
(let* ((t_0 (- (- 1.0 z) 1.0)))
(*
(/ (PI) (sin (* (PI) z)))
(*
(* (sqrt (PI)) (* (exp -7.5) (sqrt 15.0)))
(+
(+
(+
(+
(+
(+ 47.95075976068351 (/ 771.3234287776531 3.0))
(/ -176.6150291621406 (+ t_0 4.0)))
(/ 12.507343278686905 (+ t_0 5.0)))
(/ -0.13857109526572012 (+ t_0 6.0)))
(/ 9.984369578019572e-6 (+ t_0 7.0)))
(/ 1.5056327351493116e-7 (+ t_0 8.0)))))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - z\right) - 1\\
\frac{\mathsf{PI}\left(\right)}{\sin \left(\mathsf{PI}\left(\right) \cdot z\right)} \cdot \left(\left(\sqrt{\mathsf{PI}\left(\right)} \cdot \left(e^{-7.5} \cdot \sqrt{15}\right)\right) \cdot \left(\left(\left(\left(\left(\left(47.95075976068351 + \frac{771.3234287776531}{3}\right) + \frac{-176.6150291621406}{t\_0 + 4}\right) + \frac{12.507343278686905}{t\_0 + 5}\right) + \frac{-0.13857109526572012}{t\_0 + 6}\right) + \frac{9.984369578019572 \cdot 10^{-6}}{t\_0 + 7}\right) + \frac{1.5056327351493116 \cdot 10^{-7}}{t\_0 + 8}\right)\right)
\end{array}
\end{array}
Initial program 96.2%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f64N/A
lower-exp.f64N/A
lower-sqrt.f64N/A
lower-PI.f6493.7
Applied rewrites93.7%
Taylor expanded in z around 0
Applied rewrites95.0%
Applied rewrites95.0%
Taylor expanded in z around 0
Applied rewrites94.9%
herbie shell --seed 2024322
(FPCore (z)
:name "Jmat.Real.gamma, branch z less than 0.5"
:precision binary64
:pre (<= z 0.5)
(* (/ (PI) (sin (* (PI) z))) (* (* (* (sqrt (* (PI) 2.0)) (pow (+ (+ (- (- 1.0 z) 1.0) 7.0) 0.5) (+ (- (- 1.0 z) 1.0) 0.5))) (exp (- (+ (+ (- (- 1.0 z) 1.0) 7.0) 0.5)))) (+ (+ (+ (+ (+ (+ (+ (+ 0.9999999999998099 (/ 676.5203681218851 (+ (- (- 1.0 z) 1.0) 1.0))) (/ -1259.1392167224028 (+ (- (- 1.0 z) 1.0) 2.0))) (/ 771.3234287776531 (+ (- (- 1.0 z) 1.0) 3.0))) (/ -176.6150291621406 (+ (- (- 1.0 z) 1.0) 4.0))) (/ 12.507343278686905 (+ (- (- 1.0 z) 1.0) 5.0))) (/ -0.13857109526572012 (+ (- (- 1.0 z) 1.0) 6.0))) (/ 9.984369578019572e-6 (+ (- (- 1.0 z) 1.0) 7.0))) (/ 1.5056327351493116e-7 (+ (- (- 1.0 z) 1.0) 8.0))))))