Average Error: 0.3 → 0.7
Time: 16.3s
Precision: binary64
\[e^{-w} \cdot {\ell}^{\left(e^{w}\right)}\]
\[\frac{{\left({\left(\sqrt{\ell}\right)}^{\left(\sqrt{e^{w}}\right)}\right)}^{\left(\sqrt{e^{w}}\right)} \cdot {\left({\left(\sqrt{\ell}\right)}^{\left(\sqrt[3]{e^{w}} \cdot \sqrt[3]{e^{w}}\right)}\right)}^{\left(\sqrt[3]{e^{w}}\right)}}{e^{w}}\]

Error

Bits error versus w

Bits error versus l

Derivation

  1. Initial program 0.3

    \[e^{-w} \cdot {\ell}^{\left(e^{w}\right)}\]
  2. Simplified0.3

    \[\leadsto \color{blue}{\frac{{\ell}^{\left(e^{w}\right)}}{e^{w}}}\]
  3. Using strategy rm
  4. Applied add-sqr-sqrt0.6

    \[\leadsto \frac{{\color{blue}{\left(\sqrt{\ell} \cdot \sqrt{\ell}\right)}}^{\left(e^{w}\right)}}{e^{w}}\]
  5. Applied unpow-prod-down0.6

    \[\leadsto \frac{\color{blue}{{\left(\sqrt{\ell}\right)}^{\left(e^{w}\right)} \cdot {\left(\sqrt{\ell}\right)}^{\left(e^{w}\right)}}}{e^{w}}\]
  6. Using strategy rm
  7. Applied add-cube-cbrt0.7

    \[\leadsto \frac{{\left(\sqrt{\ell}\right)}^{\left(e^{w}\right)} \cdot {\left(\sqrt{\ell}\right)}^{\color{blue}{\left(\left(\sqrt[3]{e^{w}} \cdot \sqrt[3]{e^{w}}\right) \cdot \sqrt[3]{e^{w}}\right)}}}{e^{w}}\]
  8. Applied pow-unpow0.7

    \[\leadsto \frac{{\left(\sqrt{\ell}\right)}^{\left(e^{w}\right)} \cdot \color{blue}{{\left({\left(\sqrt{\ell}\right)}^{\left(\sqrt[3]{e^{w}} \cdot \sqrt[3]{e^{w}}\right)}\right)}^{\left(\sqrt[3]{e^{w}}\right)}}}{e^{w}}\]
  9. Using strategy rm
  10. Applied add-sqr-sqrt0.7

    \[\leadsto \frac{{\left(\sqrt{\ell}\right)}^{\color{blue}{\left(\sqrt{e^{w}} \cdot \sqrt{e^{w}}\right)}} \cdot {\left({\left(\sqrt{\ell}\right)}^{\left(\sqrt[3]{e^{w}} \cdot \sqrt[3]{e^{w}}\right)}\right)}^{\left(\sqrt[3]{e^{w}}\right)}}{e^{w}}\]
  11. Applied pow-unpow0.7

    \[\leadsto \frac{\color{blue}{{\left({\left(\sqrt{\ell}\right)}^{\left(\sqrt{e^{w}}\right)}\right)}^{\left(\sqrt{e^{w}}\right)}} \cdot {\left({\left(\sqrt{\ell}\right)}^{\left(\sqrt[3]{e^{w}} \cdot \sqrt[3]{e^{w}}\right)}\right)}^{\left(\sqrt[3]{e^{w}}\right)}}{e^{w}}\]
  12. Final simplification0.7

    \[\leadsto \frac{{\left({\left(\sqrt{\ell}\right)}^{\left(\sqrt{e^{w}}\right)}\right)}^{\left(\sqrt{e^{w}}\right)} \cdot {\left({\left(\sqrt{\ell}\right)}^{\left(\sqrt[3]{e^{w}} \cdot \sqrt[3]{e^{w}}\right)}\right)}^{\left(\sqrt[3]{e^{w}}\right)}}{e^{w}}\]

Reproduce

herbie shell --seed 2020168 
(FPCore (w l)
  :name "exp-w crasher"
  :precision binary64
  (* (exp (neg w)) (pow l (exp w))))