\[1 - \left(\frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(0.254829592 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(-0.284496736 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(1.421413741 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(-1.453152027 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot 1.061405429\right)\right)\right)\right)\right) \cdot e^{-\left|x\right| \cdot \left|x\right|}\]
Test:
Jmat.Real.erf
Bits:
128 bits
Bits error versus x
Time: 33.6 s
Input Error: 13.9
Output Error: 13.0
Log:
Profile: 🕒
\(\frac{\frac{{1}^{3} - {\left(\log_* (1 + (e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^3} - 1)^*)\right)}^{3}}{{1}^2 + \left({\left(\log_* (1 + (e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^3} - 1)^*)\right)}^2 + 1 \cdot \log_* (1 + (e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^3} - 1)^*)\right)}}{(\left({\left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right)}^2\right) * \left({\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right)}^2\right) + \left((\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right) * \left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) + 1)_*\right))_*}\)
  1. Started with
    \[1 - \left(\frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(0.254829592 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(-0.284496736 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(1.421413741 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(-1.453152027 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot 1.061405429\right)\right)\right)\right)\right) \cdot e^{-\left|x\right| \cdot \left|x\right|}\]
    13.9
  2. Applied simplify to get
    \[\color{red}{1 - \left(\frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(0.254829592 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(-0.284496736 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(1.421413741 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot \left(-1.453152027 + \frac{1}{1 + 0.3275911 \cdot \left|x\right|} \cdot 1.061405429\right)\right)\right)\right)\right) \cdot e^{-\left|x\right| \cdot \left|x\right|}} \leadsto \color{blue}{1 - \frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}}\]
    13.9
  3. Using strategy rm
    13.9
  4. Applied flip3-- to get
    \[\color{red}{1 - \frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}} \leadsto \color{blue}{\frac{{1}^{3} - {\left(\frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^{3}}{{1}^2 + \left({\left(\frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^2 + 1 \cdot \frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}}\]
    13.9
  5. Applied simplify to get
    \[\frac{\color{red}{{1}^{3} - {\left(\frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^{3}}}{{1}^2 + \left({\left(\frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^2 + 1 \cdot \frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)} \leadsto \frac{\color{blue}{1 - {\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(-0.284496736 + \frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{{\left(\left|x\right|\right)}^2}}\right)}^3}}{{1}^2 + \left({\left(\frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^2 + 1 \cdot \frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}\]
    13.9
  6. Applied simplify to get
    \[\frac{1 - {\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(-0.284496736 + \frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{{\left(\left|x\right|\right)}^2}}\right)}^3}{\color{red}{{1}^2 + \left({\left(\frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^2 + 1 \cdot \frac{(\left((\left(\frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -1.453152027\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}} \leadsto \frac{1 - {\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(-0.284496736 + \frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{{\left(\left|x\right|\right)}^2}}\right)}^3}{\color{blue}{(\left({\left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right)}^2\right) * \left({\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right)}^2\right) + \left((\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right) * \left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) + 1)_*\right))_*}}\]
    13.9
  7. Using strategy rm
    13.9
  8. Applied log1p-expm1-u to get
    \[\frac{1 - \color{red}{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(-0.284496736 + \frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{{\left(\left|x\right|\right)}^2}}\right)}^3}}{(\left({\left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right)}^2\right) * \left({\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right)}^2\right) + \left((\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right) * \left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) + 1)_*\right))_*} \leadsto \frac{1 - \color{blue}{\log_* (1 + (e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(-0.284496736 + \frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{{\left(\left|x\right|\right)}^2}}\right)}^3} - 1)^*)}}{(\left({\left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right)}^2\right) * \left({\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right)}^2\right) + \left((\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right) * \left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) + 1)_*\right))_*}\]
    13.1
  9. Applied simplify to get
    \[\frac{1 - \log_* (1 + \color{red}{(e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(-0.284496736 + \frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) * \left(\frac{\frac{1}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{{\left(\left|x\right|\right)}^2}}\right)}^3} - 1)^*})}{(\left({\left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right)}^2\right) * \left({\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right)}^2\right) + \left((\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right) * \left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) + 1)_*\right))_*} \leadsto \frac{1 - \log_* (1 + \color{blue}{(e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^3} - 1)^*})}{(\left({\left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right)}^2\right) * \left({\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right)}^2\right) + \left((\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right) * \left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) + 1)_*\right))_*}\]
    13.1
  10. Using strategy rm
    13.1
  11. Applied flip3-- to get
    \[\frac{\color{red}{1 - \log_* (1 + (e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^3} - 1)^*)}}{(\left({\left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right)}^2\right) * \left({\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right)}^2\right) + \left((\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right) * \left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) + 1)_*\right))_*} \leadsto \frac{\color{blue}{\frac{{1}^{3} - {\left(\log_* (1 + (e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^3} - 1)^*)\right)}^{3}}{{1}^2 + \left({\left(\log_* (1 + (e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^3} - 1)^*)\right)}^2 + 1 \cdot \log_* (1 + (e^{{\left(\frac{(\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*}{e^{\left|x\right| \cdot \left|x\right|}}\right)}^3} - 1)^*)\right)}}}{(\left({\left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right)}^2\right) * \left({\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right)}^2\right) + \left((\left({\left(e^{\left|x\right|}\right)}^{\left(-\left|x\right|\right)}\right) * \left((\left((\left(-1.453152027 + \frac{1.061405429}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{1.421413741}{(0.3275911 * \left(\left|x\right|\right) + 1)_*} + -0.284496736\right))_*\right) * \left(\frac{1}{{\left((0.3275911 * \left(\left|x\right|\right) + 1)_*\right)}^2}\right) + \left(\frac{0.254829592}{(0.3275911 * \left(\left|x\right|\right) + 1)_*}\right))_*\right) + 1)_*\right))_*}\]
    13.0

  12. Removed slow pow expressions

Original test:


(lambda ((x default))
  #:name "Jmat.Real.erf"
  (- 1 (* (* (/ 1 (+ 1 (* 0.3275911 (fabs x)))) (+ 0.254829592 (* (/ 1 (+ 1 (* 0.3275911 (fabs x)))) (+ -0.284496736 (* (/ 1 (+ 1 (* 0.3275911 (fabs x)))) (+ 1.421413741 (* (/ 1 (+ 1 (* 0.3275911 (fabs x)))) (+ -1.453152027 (* (/ 1 (+ 1 (* 0.3275911 (fabs x)))) 1.061405429))))))))) (exp (- (* (fabs x) (fabs x)))))))