Rosa's DopplerBench

Percentage Accurate: 73.2% → 98.1%
Time: 9.0s
Alternatives: 14
Speedup: TODO×

Specification

?
\[\begin{array}{l} t_1 := t1 + u\\ \frac{\left(-t1\right) \cdot v}{t_1 \cdot t_1} \end{array} \]

Your Program's Arguments

Results

Enter valid numbers for all inputs

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 14 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.

Alternative 1?

\[\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u} \]
Derivation
  1. Initial program 73.2%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  2. Step-by-step derivation
    1. times-frac97.5%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
  3. Simplified97.5%

    \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
  4. Final simplification97.5%

    \[\leadsto \frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u} \]

Alternative 2?

\[\begin{array}{l} t_1 := \frac{t1}{u} \cdot \frac{-v}{u}\\ t_2 := \frac{\frac{v}{t1}}{-1 - \frac{u}{t1}}\\ \mathbf{if}\;t1 \leq -3.2 \cdot 10^{+60}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;t1 \leq -9 \cdot 10^{-25}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;t1 \leq -7 \cdot 10^{-146}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;t1 \leq 5.5 \cdot 10^{-133}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \]
Derivation
  1. Split input into 3 regimes
  2. if t1 < -3.19999999999999991e60 or -9.0000000000000002e-25 < t1 < -7.0000000000000003e-146

    1. Initial program 65.7%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. *-commutative65.7%

        \[\leadsto \frac{\color{blue}{v \cdot \left(-t1\right)}}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
      2. times-frac99.9%

        \[\leadsto \color{blue}{\frac{v}{t1 + u} \cdot \frac{-t1}{t1 + u}} \]
      3. neg-mul-199.9%

        \[\leadsto \frac{v}{t1 + u} \cdot \frac{\color{blue}{-1 \cdot t1}}{t1 + u} \]
      4. associate-/l*99.9%

        \[\leadsto \frac{v}{t1 + u} \cdot \color{blue}{\frac{-1}{\frac{t1 + u}{t1}}} \]
      5. associate-*r/99.8%

        \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u} \cdot -1}{\frac{t1 + u}{t1}}} \]
      6. associate-/l*99.8%

        \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u}}{\frac{\frac{t1 + u}{t1}}{-1}}} \]
      7. associate-/l/99.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{t1 + u}{-1 \cdot t1}}} \]
      8. neg-mul-199.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{t1 + u}{\color{blue}{-t1}}} \]
      9. *-lft-identity99.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{1 \cdot \frac{t1 + u}{-t1}}} \]
      10. metadata-eval99.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-1}{-1}} \cdot \frac{t1 + u}{-t1}} \]
      11. times-frac99.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-1 \cdot \left(t1 + u\right)}{-1 \cdot \left(-t1\right)}}} \]
      12. neg-mul-199.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{-1 \cdot \left(t1 + u\right)}{\color{blue}{-\left(-t1\right)}}} \]
      13. remove-double-neg99.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{-1 \cdot \left(t1 + u\right)}{\color{blue}{t1}}} \]
      14. neg-mul-199.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{-\left(t1 + u\right)}}{t1}} \]
      15. sub0-neg99.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{0 - \left(t1 + u\right)}}{t1}} \]
      16. associate--r+99.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{\left(0 - t1\right) - u}}{t1}} \]
      17. neg-sub099.8%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{\left(-t1\right)} - u}{t1}} \]
      18. div-sub99.9%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-t1}{t1} - \frac{u}{t1}}} \]
      19. distribute-frac-neg99.9%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\left(-\frac{t1}{t1}\right)} - \frac{u}{t1}} \]
      20. *-inverses99.9%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\left(-\color{blue}{1}\right) - \frac{u}{t1}} \]
      21. metadata-eval99.9%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{-1} - \frac{u}{t1}} \]
    3. Simplified99.9%

      \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u}}{-1 - \frac{u}{t1}}} \]
    4. Taylor expanded in t1 around inf 77.7%

      \[\leadsto \frac{\color{blue}{\frac{v}{t1}}}{-1 - \frac{u}{t1}} \]

    if -3.19999999999999991e60 < t1 < -9.0000000000000002e-25 or -7.0000000000000003e-146 < t1 < 5.49999999999999977e-133

    1. Initial program 83.8%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Taylor expanded in t1 around 0 82.5%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{{u}^{2}}} \]
    3. Step-by-step derivation
      1. mul-1-neg82.5%

        \[\leadsto \color{blue}{-\frac{t1 \cdot v}{{u}^{2}}} \]
      2. unpow282.5%

        \[\leadsto -\frac{t1 \cdot v}{\color{blue}{u \cdot u}} \]
      3. times-frac90.1%

        \[\leadsto -\color{blue}{\frac{t1}{u} \cdot \frac{v}{u}} \]
      4. *-commutative90.1%

        \[\leadsto -\color{blue}{\frac{v}{u} \cdot \frac{t1}{u}} \]
      5. distribute-rgt-neg-in90.1%

        \[\leadsto \color{blue}{\frac{v}{u} \cdot \left(-\frac{t1}{u}\right)} \]
    4. Simplified90.1%

      \[\leadsto \color{blue}{\frac{v}{u} \cdot \left(-\frac{t1}{u}\right)} \]

    if 5.49999999999999977e-133 < t1

    1. Initial program 68.2%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. associate-/l*77.2%

        \[\leadsto \color{blue}{\frac{-t1}{\frac{\left(t1 + u\right) \cdot \left(t1 + u\right)}{v}}} \]
      2. associate-/l*85.4%

        \[\leadsto \frac{-t1}{\color{blue}{\frac{t1 + u}{\frac{v}{t1 + u}}}} \]
    3. Simplified85.4%

      \[\leadsto \color{blue}{\frac{-t1}{\frac{t1 + u}{\frac{v}{t1 + u}}}} \]
    4. Taylor expanded in t1 around inf 69.7%

      \[\leadsto \frac{-t1}{\frac{t1 + u}{\color{blue}{\frac{v}{t1}}}} \]
    5. Taylor expanded in v around 0 77.0%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1 + u}} \]
    6. Step-by-step derivation
      1. neg-mul-177.0%

        \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
      2. distribute-neg-frac77.0%

        \[\leadsto \color{blue}{\frac{-v}{t1 + u}} \]
    7. Simplified77.0%

      \[\leadsto \color{blue}{\frac{-v}{t1 + u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification82.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t1 \leq -3.2 \cdot 10^{+60}:\\ \;\;\;\;\frac{\frac{v}{t1}}{-1 - \frac{u}{t1}}\\ \mathbf{elif}\;t1 \leq -9 \cdot 10^{-25}:\\ \;\;\;\;\frac{t1}{u} \cdot \frac{-v}{u}\\ \mathbf{elif}\;t1 \leq -7 \cdot 10^{-146}:\\ \;\;\;\;\frac{\frac{v}{t1}}{-1 - \frac{u}{t1}}\\ \mathbf{elif}\;t1 \leq 5.5 \cdot 10^{-133}:\\ \;\;\;\;\frac{t1}{u} \cdot \frac{-v}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1 + u}\\ \end{array} \]

Alternative 3?

\[\begin{array}{l} \mathbf{if}\;u \leq -1.3 \cdot 10^{-95} \lor \neg \left(u \leq 6.8 \cdot 10^{-55}\right):\\ \;\;\;\;\frac{v}{t1 + u} \cdot \frac{-t1}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1}\\ \end{array} \]
Derivation
  1. Split input into 2 regimes
  2. if u < -1.3e-95 or 6.79999999999999946e-55 < u

    1. Initial program 80.8%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.8%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.8%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 78.8%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    5. Step-by-step derivation
      1. mul-1-neg78.8%

        \[\leadsto \color{blue}{\left(-\frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    6. Simplified78.8%

      \[\leadsto \color{blue}{\left(-\frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]

    if -1.3e-95 < u < 6.79999999999999946e-55

    1. Initial program 61.6%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.1%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.1%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around inf 82.1%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    5. Step-by-step derivation
      1. associate-*r/82.1%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-182.1%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    6. Simplified82.1%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification80.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -1.3 \cdot 10^{-95} \lor \neg \left(u \leq 6.8 \cdot 10^{-55}\right):\\ \;\;\;\;\frac{v}{t1 + u} \cdot \frac{-t1}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1}\\ \end{array} \]

Alternative 4?

\[\begin{array}{l} t_1 := \frac{v}{t1 + u}\\ \mathbf{if}\;u \leq -2.7 \cdot 10^{-94}:\\ \;\;\;\;t_1 \cdot \frac{-t1}{u}\\ \mathbf{elif}\;u \leq 1.9 \cdot 10^{-54}:\\ \;\;\;\;\frac{-v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{t1 \cdot t_1}{-u}\\ \end{array} \]
Derivation
  1. Split input into 3 regimes
  2. if u < -2.7000000000000001e-94

    1. Initial program 83.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac98.6%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified98.6%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 78.9%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    5. Step-by-step derivation
      1. mul-1-neg78.9%

        \[\leadsto \color{blue}{\left(-\frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    6. Simplified78.9%

      \[\leadsto \color{blue}{\left(-\frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]

    if -2.7000000000000001e-94 < u < 1.9000000000000001e-54

    1. Initial program 61.6%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.1%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.1%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around inf 82.1%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    5. Step-by-step derivation
      1. associate-*r/82.1%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-182.1%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    6. Simplified82.1%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]

    if 1.9000000000000001e-54 < u

    1. Initial program 77.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac96.6%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified96.6%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 78.6%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    5. Step-by-step derivation
      1. mul-1-neg78.6%

        \[\leadsto \color{blue}{\left(-\frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    6. Simplified78.6%

      \[\leadsto \color{blue}{\left(-\frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    7. Step-by-step derivation
      1. add-sqr-sqrt51.9%

        \[\leadsto \color{blue}{\left(\sqrt{-\frac{t1}{u}} \cdot \sqrt{-\frac{t1}{u}}\right)} \cdot \frac{v}{t1 + u} \]
      2. sqrt-unprod61.6%

        \[\leadsto \color{blue}{\sqrt{\left(-\frac{t1}{u}\right) \cdot \left(-\frac{t1}{u}\right)}} \cdot \frac{v}{t1 + u} \]
      3. sqr-neg61.6%

        \[\leadsto \sqrt{\color{blue}{\frac{t1}{u} \cdot \frac{t1}{u}}} \cdot \frac{v}{t1 + u} \]
      4. sqrt-unprod35.7%

        \[\leadsto \color{blue}{\left(\sqrt{\frac{t1}{u}} \cdot \sqrt{\frac{t1}{u}}\right)} \cdot \frac{v}{t1 + u} \]
      5. add-sqr-sqrt49.3%

        \[\leadsto \color{blue}{\frac{t1}{u}} \cdot \frac{v}{t1 + u} \]
      6. frac-2neg49.3%

        \[\leadsto \color{blue}{\frac{-t1}{-u}} \cdot \frac{v}{t1 + u} \]
      7. associate-*l/49.2%

        \[\leadsto \color{blue}{\frac{\left(-t1\right) \cdot \frac{v}{t1 + u}}{-u}} \]
      8. add-sqr-sqrt21.2%

        \[\leadsto \frac{\color{blue}{\left(\sqrt{-t1} \cdot \sqrt{-t1}\right)} \cdot \frac{v}{t1 + u}}{-u} \]
      9. sqrt-unprod51.0%

        \[\leadsto \frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} \cdot \frac{v}{t1 + u}}{-u} \]
      10. sqr-neg51.0%

        \[\leadsto \frac{\sqrt{\color{blue}{t1 \cdot t1}} \cdot \frac{v}{t1 + u}}{-u} \]
      11. sqrt-prod37.0%

        \[\leadsto \frac{\color{blue}{\left(\sqrt{t1} \cdot \sqrt{t1}\right)} \cdot \frac{v}{t1 + u}}{-u} \]
      12. add-sqr-sqrt80.3%

        \[\leadsto \frac{\color{blue}{t1} \cdot \frac{v}{t1 + u}}{-u} \]
    8. Applied egg-rr80.3%

      \[\leadsto \color{blue}{\frac{t1 \cdot \frac{v}{t1 + u}}{-u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification80.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -2.7 \cdot 10^{-94}:\\ \;\;\;\;\frac{v}{t1 + u} \cdot \frac{-t1}{u}\\ \mathbf{elif}\;u \leq 1.9 \cdot 10^{-54}:\\ \;\;\;\;\frac{-v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{t1 \cdot \frac{v}{t1 + u}}{-u}\\ \end{array} \]

Alternative 5?

\[\begin{array}{l} \mathbf{if}\;u \leq -1.55 \cdot 10^{-114}:\\ \;\;\;\;\frac{v \cdot \frac{t1}{t1 + u}}{t1 - u}\\ \mathbf{elif}\;u \leq 8.2 \cdot 10^{-52}:\\ \;\;\;\;\frac{-v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{t1 \cdot \frac{v}{t1 + u}}{-u}\\ \end{array} \]
Derivation
  1. Split input into 3 regimes
  2. if u < -1.55e-114

    1. Initial program 83.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.7%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.7%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Step-by-step derivation
      1. associate-*r/99.3%

        \[\leadsto \color{blue}{\frac{\frac{-t1}{t1 + u} \cdot v}{t1 + u}} \]
      2. frac-2neg99.3%

        \[\leadsto \color{blue}{\frac{-\frac{-t1}{t1 + u} \cdot v}{-\left(t1 + u\right)}} \]
      3. add-sqr-sqrt45.5%

        \[\leadsto \frac{-\frac{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      4. sqrt-unprod54.8%

        \[\leadsto \frac{-\frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      5. sqr-neg54.8%

        \[\leadsto \frac{-\frac{\sqrt{\color{blue}{t1 \cdot t1}}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      6. sqrt-unprod28.9%

        \[\leadsto \frac{-\frac{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      7. add-sqr-sqrt54.5%

        \[\leadsto \frac{-\frac{\color{blue}{t1}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      8. distribute-lft-neg-out54.5%

        \[\leadsto \frac{\color{blue}{\left(-\frac{t1}{t1 + u}\right) \cdot v}}{-\left(t1 + u\right)} \]
      9. distribute-frac-neg54.5%

        \[\leadsto \frac{\color{blue}{\frac{-t1}{t1 + u}} \cdot v}{-\left(t1 + u\right)} \]
      10. add-sqr-sqrt25.6%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      11. sqrt-unprod59.1%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      12. sqr-neg59.1%

        \[\leadsto \frac{\frac{\sqrt{\color{blue}{t1 \cdot t1}}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      13. sqrt-unprod53.7%

        \[\leadsto \frac{\frac{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      14. add-sqr-sqrt99.3%

        \[\leadsto \frac{\frac{\color{blue}{t1}}{t1 + u} \cdot v}{-\left(t1 + u\right)} \]
      15. distribute-neg-in99.3%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot v}{\color{blue}{\left(-t1\right) + \left(-u\right)}} \]
      16. add-sqr-sqrt45.5%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot v}{\color{blue}{\sqrt{-t1} \cdot \sqrt{-t1}} + \left(-u\right)} \]
      17. sqrt-unprod81.9%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot v}{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} + \left(-u\right)} \]
      18. sqr-neg81.9%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot v}{\sqrt{\color{blue}{t1 \cdot t1}} + \left(-u\right)} \]
      19. sqrt-unprod38.5%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot v}{\color{blue}{\sqrt{t1} \cdot \sqrt{t1}} + \left(-u\right)} \]
      20. add-sqr-sqrt78.5%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot v}{\color{blue}{t1} + \left(-u\right)} \]
      21. sub-neg78.5%

        \[\leadsto \frac{\frac{t1}{t1 + u} \cdot v}{\color{blue}{t1 - u}} \]
    5. Applied egg-rr78.5%

      \[\leadsto \color{blue}{\frac{\frac{t1}{t1 + u} \cdot v}{t1 - u}} \]

    if -1.55e-114 < u < 8.19999999999999977e-52

    1. Initial program 60.2%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.9%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.9%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around inf 83.7%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    5. Step-by-step derivation
      1. associate-*r/83.7%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-183.7%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    6. Simplified83.7%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]

    if 8.19999999999999977e-52 < u

    1. Initial program 77.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac96.6%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified96.6%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 78.6%

      \[\leadsto \color{blue}{\left(-1 \cdot \frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    5. Step-by-step derivation
      1. mul-1-neg78.6%

        \[\leadsto \color{blue}{\left(-\frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    6. Simplified78.6%

      \[\leadsto \color{blue}{\left(-\frac{t1}{u}\right)} \cdot \frac{v}{t1 + u} \]
    7. Step-by-step derivation
      1. add-sqr-sqrt51.9%

        \[\leadsto \color{blue}{\left(\sqrt{-\frac{t1}{u}} \cdot \sqrt{-\frac{t1}{u}}\right)} \cdot \frac{v}{t1 + u} \]
      2. sqrt-unprod61.6%

        \[\leadsto \color{blue}{\sqrt{\left(-\frac{t1}{u}\right) \cdot \left(-\frac{t1}{u}\right)}} \cdot \frac{v}{t1 + u} \]
      3. sqr-neg61.6%

        \[\leadsto \sqrt{\color{blue}{\frac{t1}{u} \cdot \frac{t1}{u}}} \cdot \frac{v}{t1 + u} \]
      4. sqrt-unprod35.7%

        \[\leadsto \color{blue}{\left(\sqrt{\frac{t1}{u}} \cdot \sqrt{\frac{t1}{u}}\right)} \cdot \frac{v}{t1 + u} \]
      5. add-sqr-sqrt49.3%

        \[\leadsto \color{blue}{\frac{t1}{u}} \cdot \frac{v}{t1 + u} \]
      6. frac-2neg49.3%

        \[\leadsto \color{blue}{\frac{-t1}{-u}} \cdot \frac{v}{t1 + u} \]
      7. associate-*l/49.2%

        \[\leadsto \color{blue}{\frac{\left(-t1\right) \cdot \frac{v}{t1 + u}}{-u}} \]
      8. add-sqr-sqrt21.2%

        \[\leadsto \frac{\color{blue}{\left(\sqrt{-t1} \cdot \sqrt{-t1}\right)} \cdot \frac{v}{t1 + u}}{-u} \]
      9. sqrt-unprod51.0%

        \[\leadsto \frac{\color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} \cdot \frac{v}{t1 + u}}{-u} \]
      10. sqr-neg51.0%

        \[\leadsto \frac{\sqrt{\color{blue}{t1 \cdot t1}} \cdot \frac{v}{t1 + u}}{-u} \]
      11. sqrt-prod37.0%

        \[\leadsto \frac{\color{blue}{\left(\sqrt{t1} \cdot \sqrt{t1}\right)} \cdot \frac{v}{t1 + u}}{-u} \]
      12. add-sqr-sqrt80.3%

        \[\leadsto \frac{\color{blue}{t1} \cdot \frac{v}{t1 + u}}{-u} \]
    8. Applied egg-rr80.3%

      \[\leadsto \color{blue}{\frac{t1 \cdot \frac{v}{t1 + u}}{-u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification80.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -1.55 \cdot 10^{-114}:\\ \;\;\;\;\frac{v \cdot \frac{t1}{t1 + u}}{t1 - u}\\ \mathbf{elif}\;u \leq 8.2 \cdot 10^{-52}:\\ \;\;\;\;\frac{-v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{t1 \cdot \frac{v}{t1 + u}}{-u}\\ \end{array} \]

Alternative 6?

\[\begin{array}{l} \mathbf{if}\;u \leq -8.5 \cdot 10^{-60} \lor \neg \left(u \leq 6.2 \cdot 10^{-52}\right):\\ \;\;\;\;\frac{t1 \cdot \frac{-v}{u}}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1}\\ \end{array} \]
Derivation
  1. Split input into 2 regimes
  2. if u < -8.50000000000000044e-60 or 6.1999999999999998e-52 < u

    1. Initial program 80.1%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.7%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.7%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 67.3%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{{u}^{2}}} \]
    5. Step-by-step derivation
      1. associate-*r/67.3%

        \[\leadsto \color{blue}{\frac{-1 \cdot \left(t1 \cdot v\right)}{{u}^{2}}} \]
      2. neg-mul-167.3%

        \[\leadsto \frac{\color{blue}{-t1 \cdot v}}{{u}^{2}} \]
      3. distribute-rgt-neg-out67.3%

        \[\leadsto \frac{\color{blue}{t1 \cdot \left(-v\right)}}{{u}^{2}} \]
      4. unpow267.3%

        \[\leadsto \frac{t1 \cdot \left(-v\right)}{\color{blue}{u \cdot u}} \]
    6. Simplified67.3%

      \[\leadsto \color{blue}{\frac{t1 \cdot \left(-v\right)}{u \cdot u}} \]
    7. Step-by-step derivation
      1. frac-2neg67.3%

        \[\leadsto \color{blue}{\frac{-t1 \cdot \left(-v\right)}{-u \cdot u}} \]
      2. distribute-frac-neg67.3%

        \[\leadsto \color{blue}{-\frac{t1 \cdot \left(-v\right)}{-u \cdot u}} \]
      3. add-sqr-sqrt39.2%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{v} \cdot \sqrt{v}}\right)}{-u \cdot u} \]
      4. sqrt-unprod55.3%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{v \cdot v}}\right)}{-u \cdot u} \]
      5. sqr-neg55.3%

        \[\leadsto -\frac{t1 \cdot \left(-\sqrt{\color{blue}{\left(-v\right) \cdot \left(-v\right)}}\right)}{-u \cdot u} \]
      6. sqrt-unprod20.8%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}\right)}{-u \cdot u} \]
      7. add-sqr-sqrt47.7%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\left(-v\right)}\right)}{-u \cdot u} \]
      8. distribute-rgt-neg-in47.7%

        \[\leadsto -\frac{\color{blue}{-t1 \cdot \left(-v\right)}}{-u \cdot u} \]
      9. frac-2neg47.7%

        \[\leadsto -\color{blue}{\frac{t1 \cdot \left(-v\right)}{u \cdot u}} \]
      10. times-frac48.6%

        \[\leadsto -\color{blue}{\frac{t1}{u} \cdot \frac{-v}{u}} \]
      11. associate-*l/48.5%

        \[\leadsto -\color{blue}{\frac{t1 \cdot \frac{-v}{u}}{u}} \]
      12. add-sqr-sqrt20.8%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}}{u}}{u} \]
      13. sqrt-unprod58.1%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}}}{u}}{u} \]
      14. sqr-neg58.1%

        \[\leadsto -\frac{t1 \cdot \frac{\sqrt{\color{blue}{v \cdot v}}}{u}}{u} \]
      15. sqrt-unprod44.7%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{v} \cdot \sqrt{v}}}{u}}{u} \]
      16. add-sqr-sqrt75.7%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{v}}{u}}{u} \]
    8. Applied egg-rr75.7%

      \[\leadsto \color{blue}{-\frac{t1 \cdot \frac{v}{u}}{u}} \]

    if -8.50000000000000044e-60 < u < 6.1999999999999998e-52

    1. Initial program 63.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.2%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around inf 80.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    5. Step-by-step derivation
      1. associate-*r/80.9%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-180.9%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    6. Simplified80.9%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -8.5 \cdot 10^{-60} \lor \neg \left(u \leq 6.2 \cdot 10^{-52}\right):\\ \;\;\;\;\frac{t1 \cdot \frac{-v}{u}}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1}\\ \end{array} \]

Alternative 7?

\[\begin{array}{l} t_1 := \frac{-v}{u}\\ \mathbf{if}\;u \leq -1.2 \cdot 10^{-61}:\\ \;\;\;\;\frac{t1}{u} \cdot t_1\\ \mathbf{elif}\;u \leq 1.16 \cdot 10^{-54}:\\ \;\;\;\;\frac{-v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{t1 \cdot t_1}{u}\\ \end{array} \]
Derivation
  1. Split input into 3 regimes
  2. if u < -1.2e-61

    1. Initial program 82.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Taylor expanded in t1 around 0 68.0%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{{u}^{2}}} \]
    3. Step-by-step derivation
      1. mul-1-neg68.0%

        \[\leadsto \color{blue}{-\frac{t1 \cdot v}{{u}^{2}}} \]
      2. unpow268.0%

        \[\leadsto -\frac{t1 \cdot v}{\color{blue}{u \cdot u}} \]
      3. times-frac74.6%

        \[\leadsto -\color{blue}{\frac{t1}{u} \cdot \frac{v}{u}} \]
      4. *-commutative74.6%

        \[\leadsto -\color{blue}{\frac{v}{u} \cdot \frac{t1}{u}} \]
      5. distribute-rgt-neg-in74.6%

        \[\leadsto \color{blue}{\frac{v}{u} \cdot \left(-\frac{t1}{u}\right)} \]
    4. Simplified74.6%

      \[\leadsto \color{blue}{\frac{v}{u} \cdot \left(-\frac{t1}{u}\right)} \]

    if -1.2e-61 < u < 1.16e-54

    1. Initial program 63.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.2%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around inf 80.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    5. Step-by-step derivation
      1. associate-*r/80.9%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-180.9%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    6. Simplified80.9%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]

    if 1.16e-54 < u

    1. Initial program 77.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac96.6%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified96.6%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 66.4%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{{u}^{2}}} \]
    5. Step-by-step derivation
      1. associate-*r/66.4%

        \[\leadsto \color{blue}{\frac{-1 \cdot \left(t1 \cdot v\right)}{{u}^{2}}} \]
      2. neg-mul-166.4%

        \[\leadsto \frac{\color{blue}{-t1 \cdot v}}{{u}^{2}} \]
      3. distribute-rgt-neg-out66.4%

        \[\leadsto \frac{\color{blue}{t1 \cdot \left(-v\right)}}{{u}^{2}} \]
      4. unpow266.4%

        \[\leadsto \frac{t1 \cdot \left(-v\right)}{\color{blue}{u \cdot u}} \]
    6. Simplified66.4%

      \[\leadsto \color{blue}{\frac{t1 \cdot \left(-v\right)}{u \cdot u}} \]
    7. Step-by-step derivation
      1. frac-2neg66.4%

        \[\leadsto \color{blue}{\frac{-t1 \cdot \left(-v\right)}{-u \cdot u}} \]
      2. distribute-frac-neg66.4%

        \[\leadsto \color{blue}{-\frac{t1 \cdot \left(-v\right)}{-u \cdot u}} \]
      3. add-sqr-sqrt34.3%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{v} \cdot \sqrt{v}}\right)}{-u \cdot u} \]
      4. sqrt-unprod51.8%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{v \cdot v}}\right)}{-u \cdot u} \]
      5. sqr-neg51.8%

        \[\leadsto -\frac{t1 \cdot \left(-\sqrt{\color{blue}{\left(-v\right) \cdot \left(-v\right)}}\right)}{-u \cdot u} \]
      6. sqrt-unprod21.4%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}\right)}{-u \cdot u} \]
      7. add-sqr-sqrt44.5%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\left(-v\right)}\right)}{-u \cdot u} \]
      8. distribute-rgt-neg-in44.5%

        \[\leadsto -\frac{\color{blue}{-t1 \cdot \left(-v\right)}}{-u \cdot u} \]
      9. frac-2neg44.5%

        \[\leadsto -\color{blue}{\frac{t1 \cdot \left(-v\right)}{u \cdot u}} \]
      10. times-frac45.9%

        \[\leadsto -\color{blue}{\frac{t1}{u} \cdot \frac{-v}{u}} \]
      11. associate-*l/45.8%

        \[\leadsto -\color{blue}{\frac{t1 \cdot \frac{-v}{u}}{u}} \]
      12. add-sqr-sqrt21.4%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}}{u}}{u} \]
      13. sqrt-unprod56.8%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}}}{u}}{u} \]
      14. sqr-neg56.8%

        \[\leadsto -\frac{t1 \cdot \frac{\sqrt{\color{blue}{v \cdot v}}}{u}}{u} \]
      15. sqrt-unprod41.9%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{v} \cdot \sqrt{v}}}{u}}{u} \]
      16. add-sqr-sqrt77.5%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{v}}{u}}{u} \]
    8. Applied egg-rr77.5%

      \[\leadsto \color{blue}{-\frac{t1 \cdot \frac{v}{u}}{u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification78.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -1.2 \cdot 10^{-61}:\\ \;\;\;\;\frac{t1}{u} \cdot \frac{-v}{u}\\ \mathbf{elif}\;u \leq 1.16 \cdot 10^{-54}:\\ \;\;\;\;\frac{-v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{t1 \cdot \frac{-v}{u}}{u}\\ \end{array} \]

Alternative 8?

\[\begin{array}{l} \mathbf{if}\;u \leq -5.6 \cdot 10^{-58}:\\ \;\;\;\;\frac{-t1}{u \cdot \frac{u}{v}}\\ \mathbf{elif}\;u \leq 9 \cdot 10^{-54}:\\ \;\;\;\;\frac{-v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{t1 \cdot \frac{-v}{u}}{u}\\ \end{array} \]
Derivation
  1. Split input into 3 regimes
  2. if u < -5.6000000000000001e-58

    1. Initial program 82.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac98.5%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified98.5%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 68.0%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{{u}^{2}}} \]
    5. Step-by-step derivation
      1. associate-*r/68.0%

        \[\leadsto \color{blue}{\frac{-1 \cdot \left(t1 \cdot v\right)}{{u}^{2}}} \]
      2. neg-mul-168.0%

        \[\leadsto \frac{\color{blue}{-t1 \cdot v}}{{u}^{2}} \]
      3. distribute-rgt-neg-out68.0%

        \[\leadsto \frac{\color{blue}{t1 \cdot \left(-v\right)}}{{u}^{2}} \]
      4. unpow268.0%

        \[\leadsto \frac{t1 \cdot \left(-v\right)}{\color{blue}{u \cdot u}} \]
    6. Simplified68.0%

      \[\leadsto \color{blue}{\frac{t1 \cdot \left(-v\right)}{u \cdot u}} \]
    7. Step-by-step derivation
      1. associate-/l*69.9%

        \[\leadsto \color{blue}{\frac{t1}{\frac{u \cdot u}{-v}}} \]
      2. associate-/r/66.1%

        \[\leadsto \color{blue}{\frac{t1}{u \cdot u} \cdot \left(-v\right)} \]
      3. add-sqr-sqrt24.8%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \color{blue}{\left(\sqrt{-v} \cdot \sqrt{-v}\right)} \]
      4. sqrt-unprod55.3%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}} \]
      5. sqr-neg55.3%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \sqrt{\color{blue}{v \cdot v}} \]
      6. sqrt-unprod30.2%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \color{blue}{\left(\sqrt{v} \cdot \sqrt{v}\right)} \]
      7. add-sqr-sqrt50.6%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \color{blue}{v} \]
    8. Applied egg-rr50.6%

      \[\leadsto \color{blue}{\frac{t1}{u \cdot u} \cdot v} \]
    9. Step-by-step derivation
      1. associate-*l/50.2%

        \[\leadsto \color{blue}{\frac{t1 \cdot v}{u \cdot u}} \]
      2. *-commutative50.2%

        \[\leadsto \frac{\color{blue}{v \cdot t1}}{u \cdot u} \]
      3. frac-times50.7%

        \[\leadsto \color{blue}{\frac{v}{u} \cdot \frac{t1}{u}} \]
      4. clear-num50.7%

        \[\leadsto \color{blue}{\frac{1}{\frac{u}{v}}} \cdot \frac{t1}{u} \]
      5. frac-2neg50.7%

        \[\leadsto \frac{1}{\frac{u}{v}} \cdot \color{blue}{\frac{-t1}{-u}} \]
      6. frac-times51.9%

        \[\leadsto \color{blue}{\frac{1 \cdot \left(-t1\right)}{\frac{u}{v} \cdot \left(-u\right)}} \]
      7. *-un-lft-identity51.9%

        \[\leadsto \frac{\color{blue}{-t1}}{\frac{u}{v} \cdot \left(-u\right)} \]
      8. add-sqr-sqrt51.9%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\left(\sqrt{-u} \cdot \sqrt{-u}\right)}} \]
      9. sqrt-unprod52.1%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\sqrt{\left(-u\right) \cdot \left(-u\right)}}} \]
      10. sqr-neg52.1%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \sqrt{\color{blue}{u \cdot u}}} \]
      11. sqrt-prod0.0%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{\left(\sqrt{u} \cdot \sqrt{u}\right)}} \]
      12. add-sqr-sqrt75.1%

        \[\leadsto \frac{-t1}{\frac{u}{v} \cdot \color{blue}{u}} \]
    10. Applied egg-rr75.1%

      \[\leadsto \color{blue}{\frac{-t1}{\frac{u}{v} \cdot u}} \]

    if -5.6000000000000001e-58 < u < 8.9999999999999997e-54

    1. Initial program 63.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.2%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around inf 80.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    5. Step-by-step derivation
      1. associate-*r/80.9%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-180.9%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    6. Simplified80.9%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]

    if 8.9999999999999997e-54 < u

    1. Initial program 77.4%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac96.6%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified96.6%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 66.4%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{{u}^{2}}} \]
    5. Step-by-step derivation
      1. associate-*r/66.4%

        \[\leadsto \color{blue}{\frac{-1 \cdot \left(t1 \cdot v\right)}{{u}^{2}}} \]
      2. neg-mul-166.4%

        \[\leadsto \frac{\color{blue}{-t1 \cdot v}}{{u}^{2}} \]
      3. distribute-rgt-neg-out66.4%

        \[\leadsto \frac{\color{blue}{t1 \cdot \left(-v\right)}}{{u}^{2}} \]
      4. unpow266.4%

        \[\leadsto \frac{t1 \cdot \left(-v\right)}{\color{blue}{u \cdot u}} \]
    6. Simplified66.4%

      \[\leadsto \color{blue}{\frac{t1 \cdot \left(-v\right)}{u \cdot u}} \]
    7. Step-by-step derivation
      1. frac-2neg66.4%

        \[\leadsto \color{blue}{\frac{-t1 \cdot \left(-v\right)}{-u \cdot u}} \]
      2. distribute-frac-neg66.4%

        \[\leadsto \color{blue}{-\frac{t1 \cdot \left(-v\right)}{-u \cdot u}} \]
      3. add-sqr-sqrt34.3%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{v} \cdot \sqrt{v}}\right)}{-u \cdot u} \]
      4. sqrt-unprod51.8%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{v \cdot v}}\right)}{-u \cdot u} \]
      5. sqr-neg51.8%

        \[\leadsto -\frac{t1 \cdot \left(-\sqrt{\color{blue}{\left(-v\right) \cdot \left(-v\right)}}\right)}{-u \cdot u} \]
      6. sqrt-unprod21.4%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}\right)}{-u \cdot u} \]
      7. add-sqr-sqrt44.5%

        \[\leadsto -\frac{t1 \cdot \left(-\color{blue}{\left(-v\right)}\right)}{-u \cdot u} \]
      8. distribute-rgt-neg-in44.5%

        \[\leadsto -\frac{\color{blue}{-t1 \cdot \left(-v\right)}}{-u \cdot u} \]
      9. frac-2neg44.5%

        \[\leadsto -\color{blue}{\frac{t1 \cdot \left(-v\right)}{u \cdot u}} \]
      10. times-frac45.9%

        \[\leadsto -\color{blue}{\frac{t1}{u} \cdot \frac{-v}{u}} \]
      11. associate-*l/45.8%

        \[\leadsto -\color{blue}{\frac{t1 \cdot \frac{-v}{u}}{u}} \]
      12. add-sqr-sqrt21.4%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{-v} \cdot \sqrt{-v}}}{u}}{u} \]
      13. sqrt-unprod56.8%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}}}{u}}{u} \]
      14. sqr-neg56.8%

        \[\leadsto -\frac{t1 \cdot \frac{\sqrt{\color{blue}{v \cdot v}}}{u}}{u} \]
      15. sqrt-unprod41.9%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{\sqrt{v} \cdot \sqrt{v}}}{u}}{u} \]
      16. add-sqr-sqrt77.5%

        \[\leadsto -\frac{t1 \cdot \frac{\color{blue}{v}}{u}}{u} \]
    8. Applied egg-rr77.5%

      \[\leadsto \color{blue}{-\frac{t1 \cdot \frac{v}{u}}{u}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification78.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -5.6 \cdot 10^{-58}:\\ \;\;\;\;\frac{-t1}{u \cdot \frac{u}{v}}\\ \mathbf{elif}\;u \leq 9 \cdot 10^{-54}:\\ \;\;\;\;\frac{-v}{t1}\\ \mathbf{else}:\\ \;\;\;\;\frac{t1 \cdot \frac{-v}{u}}{u}\\ \end{array} \]

Alternative 9?

\[\begin{array}{l} \mathbf{if}\;u \leq -3.8 \cdot 10^{+113} \lor \neg \left(u \leq 3.8 \cdot 10^{+46}\right):\\ \;\;\;\;v \cdot \frac{t1}{u \cdot u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1}\\ \end{array} \]
Derivation
  1. Split input into 2 regimes
  2. if u < -3.8000000000000003e113 or 3.7999999999999999e46 < u

    1. Initial program 76.3%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac98.5%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified98.5%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around 0 74.2%

      \[\leadsto \color{blue}{-1 \cdot \frac{t1 \cdot v}{{u}^{2}}} \]
    5. Step-by-step derivation
      1. associate-*r/74.2%

        \[\leadsto \color{blue}{\frac{-1 \cdot \left(t1 \cdot v\right)}{{u}^{2}}} \]
      2. neg-mul-174.2%

        \[\leadsto \frac{\color{blue}{-t1 \cdot v}}{{u}^{2}} \]
      3. distribute-rgt-neg-out74.2%

        \[\leadsto \frac{\color{blue}{t1 \cdot \left(-v\right)}}{{u}^{2}} \]
      4. unpow274.2%

        \[\leadsto \frac{t1 \cdot \left(-v\right)}{\color{blue}{u \cdot u}} \]
    6. Simplified74.2%

      \[\leadsto \color{blue}{\frac{t1 \cdot \left(-v\right)}{u \cdot u}} \]
    7. Step-by-step derivation
      1. associate-/l*75.7%

        \[\leadsto \color{blue}{\frac{t1}{\frac{u \cdot u}{-v}}} \]
      2. associate-/r/72.2%

        \[\leadsto \color{blue}{\frac{t1}{u \cdot u} \cdot \left(-v\right)} \]
      3. add-sqr-sqrt32.0%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \color{blue}{\left(\sqrt{-v} \cdot \sqrt{-v}\right)} \]
      4. sqrt-unprod66.2%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \color{blue}{\sqrt{\left(-v\right) \cdot \left(-v\right)}} \]
      5. sqr-neg66.2%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \sqrt{\color{blue}{v \cdot v}} \]
      6. sqrt-unprod39.1%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \color{blue}{\left(\sqrt{v} \cdot \sqrt{v}\right)} \]
      7. add-sqr-sqrt69.9%

        \[\leadsto \frac{t1}{u \cdot u} \cdot \color{blue}{v} \]
    8. Applied egg-rr69.9%

      \[\leadsto \color{blue}{\frac{t1}{u \cdot u} \cdot v} \]

    if -3.8000000000000003e113 < u < 3.7999999999999999e46

    1. Initial program 71.6%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.0%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.0%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around inf 66.0%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    5. Step-by-step derivation
      1. associate-*r/66.0%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-166.0%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    6. Simplified66.0%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification67.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -3.8 \cdot 10^{+113} \lor \neg \left(u \leq 3.8 \cdot 10^{+46}\right):\\ \;\;\;\;v \cdot \frac{t1}{u \cdot u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1}\\ \end{array} \]

Alternative 10?

\[\frac{\frac{v}{t1 + u}}{-1 - \frac{u}{t1}} \]
Derivation
  1. Initial program 73.2%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  2. Step-by-step derivation
    1. *-commutative73.2%

      \[\leadsto \frac{\color{blue}{v \cdot \left(-t1\right)}}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. times-frac97.5%

      \[\leadsto \color{blue}{\frac{v}{t1 + u} \cdot \frac{-t1}{t1 + u}} \]
    3. neg-mul-197.5%

      \[\leadsto \frac{v}{t1 + u} \cdot \frac{\color{blue}{-1 \cdot t1}}{t1 + u} \]
    4. associate-/l*96.8%

      \[\leadsto \frac{v}{t1 + u} \cdot \color{blue}{\frac{-1}{\frac{t1 + u}{t1}}} \]
    5. associate-*r/96.8%

      \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u} \cdot -1}{\frac{t1 + u}{t1}}} \]
    6. associate-/l*96.8%

      \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u}}{\frac{\frac{t1 + u}{t1}}{-1}}} \]
    7. associate-/l/96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{t1 + u}{-1 \cdot t1}}} \]
    8. neg-mul-196.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{t1 + u}{\color{blue}{-t1}}} \]
    9. *-lft-identity96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{1 \cdot \frac{t1 + u}{-t1}}} \]
    10. metadata-eval96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-1}{-1}} \cdot \frac{t1 + u}{-t1}} \]
    11. times-frac96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-1 \cdot \left(t1 + u\right)}{-1 \cdot \left(-t1\right)}}} \]
    12. neg-mul-196.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{-1 \cdot \left(t1 + u\right)}{\color{blue}{-\left(-t1\right)}}} \]
    13. remove-double-neg96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{-1 \cdot \left(t1 + u\right)}{\color{blue}{t1}}} \]
    14. neg-mul-196.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{-\left(t1 + u\right)}}{t1}} \]
    15. sub0-neg96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{0 - \left(t1 + u\right)}}{t1}} \]
    16. associate--r+96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{\left(0 - t1\right) - u}}{t1}} \]
    17. neg-sub096.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{\left(-t1\right)} - u}{t1}} \]
    18. div-sub96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-t1}{t1} - \frac{u}{t1}}} \]
    19. distribute-frac-neg96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\left(-\frac{t1}{t1}\right)} - \frac{u}{t1}} \]
    20. *-inverses96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\left(-\color{blue}{1}\right) - \frac{u}{t1}} \]
    21. metadata-eval96.8%

      \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{-1} - \frac{u}{t1}} \]
  3. Simplified96.8%

    \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u}}{-1 - \frac{u}{t1}}} \]
  4. Final simplification96.8%

    \[\leadsto \frac{\frac{v}{t1 + u}}{-1 - \frac{u}{t1}} \]

Alternative 11?

\[\begin{array}{l} \mathbf{if}\;u \leq -5.2 \cdot 10^{+113} \lor \neg \left(u \leq 3 \cdot 10^{+154}\right):\\ \;\;\;\;\frac{-v}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1}\\ \end{array} \]
Derivation
  1. Split input into 2 regimes
  2. if u < -5.1999999999999998e113 or 3.00000000000000026e154 < u

    1. Initial program 74.7%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. *-commutative74.7%

        \[\leadsto \frac{\color{blue}{v \cdot \left(-t1\right)}}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
      2. times-frac98.2%

        \[\leadsto \color{blue}{\frac{v}{t1 + u} \cdot \frac{-t1}{t1 + u}} \]
      3. neg-mul-198.2%

        \[\leadsto \frac{v}{t1 + u} \cdot \frac{\color{blue}{-1 \cdot t1}}{t1 + u} \]
      4. associate-/l*98.2%

        \[\leadsto \frac{v}{t1 + u} \cdot \color{blue}{\frac{-1}{\frac{t1 + u}{t1}}} \]
      5. associate-*r/98.2%

        \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u} \cdot -1}{\frac{t1 + u}{t1}}} \]
      6. associate-/l*98.2%

        \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u}}{\frac{\frac{t1 + u}{t1}}{-1}}} \]
      7. associate-/l/98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{t1 + u}{-1 \cdot t1}}} \]
      8. neg-mul-198.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{t1 + u}{\color{blue}{-t1}}} \]
      9. *-lft-identity98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{1 \cdot \frac{t1 + u}{-t1}}} \]
      10. metadata-eval98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-1}{-1}} \cdot \frac{t1 + u}{-t1}} \]
      11. times-frac98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-1 \cdot \left(t1 + u\right)}{-1 \cdot \left(-t1\right)}}} \]
      12. neg-mul-198.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{-1 \cdot \left(t1 + u\right)}{\color{blue}{-\left(-t1\right)}}} \]
      13. remove-double-neg98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{-1 \cdot \left(t1 + u\right)}{\color{blue}{t1}}} \]
      14. neg-mul-198.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{-\left(t1 + u\right)}}{t1}} \]
      15. sub0-neg98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{0 - \left(t1 + u\right)}}{t1}} \]
      16. associate--r+98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{\left(0 - t1\right) - u}}{t1}} \]
      17. neg-sub098.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\frac{\color{blue}{\left(-t1\right)} - u}{t1}} \]
      18. div-sub98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\frac{-t1}{t1} - \frac{u}{t1}}} \]
      19. distribute-frac-neg98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{\left(-\frac{t1}{t1}\right)} - \frac{u}{t1}} \]
      20. *-inverses98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\left(-\color{blue}{1}\right) - \frac{u}{t1}} \]
      21. metadata-eval98.2%

        \[\leadsto \frac{\frac{v}{t1 + u}}{\color{blue}{-1} - \frac{u}{t1}} \]
    3. Simplified98.2%

      \[\leadsto \color{blue}{\frac{\frac{v}{t1 + u}}{-1 - \frac{u}{t1}}} \]
    4. Taylor expanded in t1 around inf 52.9%

      \[\leadsto \frac{\color{blue}{\frac{v}{t1}}}{-1 - \frac{u}{t1}} \]
    5. Taylor expanded in t1 around 0 32.3%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{u}} \]
    6. Step-by-step derivation
      1. associate-*r/32.3%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{u}} \]
      2. neg-mul-132.3%

        \[\leadsto \frac{\color{blue}{-v}}{u} \]
    7. Simplified32.3%

      \[\leadsto \color{blue}{\frac{-v}{u}} \]

    if -5.1999999999999998e113 < u < 3.00000000000000026e154

    1. Initial program 72.6%

      \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
    2. Step-by-step derivation
      1. times-frac97.2%

        \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    3. Simplified97.2%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
    4. Taylor expanded in t1 around inf 62.6%

      \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
    5. Step-by-step derivation
      1. associate-*r/62.6%

        \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
      2. neg-mul-162.6%

        \[\leadsto \frac{\color{blue}{-v}}{t1} \]
    6. Simplified62.6%

      \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification54.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;u \leq -5.2 \cdot 10^{+113} \lor \neg \left(u \leq 3 \cdot 10^{+154}\right):\\ \;\;\;\;\frac{-v}{u}\\ \mathbf{else}:\\ \;\;\;\;\frac{-v}{t1}\\ \end{array} \]

Alternative 12?

\[\frac{-v}{t1 + u} \]
Derivation
  1. Initial program 73.2%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  2. Step-by-step derivation
    1. associate-/l*75.0%

      \[\leadsto \color{blue}{\frac{-t1}{\frac{\left(t1 + u\right) \cdot \left(t1 + u\right)}{v}}} \]
    2. associate-/l*85.0%

      \[\leadsto \frac{-t1}{\color{blue}{\frac{t1 + u}{\frac{v}{t1 + u}}}} \]
  3. Simplified85.0%

    \[\leadsto \color{blue}{\frac{-t1}{\frac{t1 + u}{\frac{v}{t1 + u}}}} \]
  4. Taylor expanded in t1 around inf 48.2%

    \[\leadsto \frac{-t1}{\frac{t1 + u}{\color{blue}{\frac{v}{t1}}}} \]
  5. Taylor expanded in v around 0 56.4%

    \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1 + u}} \]
  6. Step-by-step derivation
    1. neg-mul-156.4%

      \[\leadsto \color{blue}{-\frac{v}{t1 + u}} \]
    2. distribute-neg-frac56.4%

      \[\leadsto \color{blue}{\frac{-v}{t1 + u}} \]
  7. Simplified56.4%

    \[\leadsto \color{blue}{\frac{-v}{t1 + u}} \]
  8. Final simplification56.4%

    \[\leadsto \frac{-v}{t1 + u} \]

Alternative 13?

\[\frac{-v}{t1} \]
Derivation
  1. Initial program 73.2%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  2. Step-by-step derivation
    1. times-frac97.5%

      \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
  3. Simplified97.5%

    \[\leadsto \color{blue}{\frac{-t1}{t1 + u} \cdot \frac{v}{t1 + u}} \]
  4. Taylor expanded in t1 around inf 48.8%

    \[\leadsto \color{blue}{-1 \cdot \frac{v}{t1}} \]
  5. Step-by-step derivation
    1. associate-*r/48.8%

      \[\leadsto \color{blue}{\frac{-1 \cdot v}{t1}} \]
    2. neg-mul-148.8%

      \[\leadsto \frac{\color{blue}{-v}}{t1} \]
  6. Simplified48.8%

    \[\leadsto \color{blue}{\frac{-v}{t1}} \]
  7. Final simplification48.8%

    \[\leadsto \frac{-v}{t1} \]

Alternative 14?

\[\frac{v}{t1} \]
Derivation
  1. Initial program 73.2%

    \[\frac{\left(-t1\right) \cdot v}{\left(t1 + u\right) \cdot \left(t1 + u\right)} \]
  2. Step-by-step derivation
    1. associate-/l*75.0%

      \[\leadsto \color{blue}{\frac{-t1}{\frac{\left(t1 + u\right) \cdot \left(t1 + u\right)}{v}}} \]
  3. Simplified75.0%

    \[\leadsto \color{blue}{\frac{-t1}{\frac{\left(t1 + u\right) \cdot \left(t1 + u\right)}{v}}} \]
  4. Taylor expanded in t1 around inf 35.6%

    \[\leadsto \frac{-t1}{\color{blue}{\frac{{t1}^{2}}{v}}} \]
  5. Step-by-step derivation
    1. unpow235.6%

      \[\leadsto \frac{-t1}{\frac{\color{blue}{t1 \cdot t1}}{v}} \]
  6. Simplified35.6%

    \[\leadsto \frac{-t1}{\color{blue}{\frac{t1 \cdot t1}{v}}} \]
  7. Step-by-step derivation
    1. div-inv35.5%

      \[\leadsto \color{blue}{\left(-t1\right) \cdot \frac{1}{\frac{t1 \cdot t1}{v}}} \]
    2. clear-num35.2%

      \[\leadsto \left(-t1\right) \cdot \color{blue}{\frac{v}{t1 \cdot t1}} \]
    3. add-sqr-sqrt15.3%

      \[\leadsto \color{blue}{\left(\sqrt{-t1} \cdot \sqrt{-t1}\right)} \cdot \frac{v}{t1 \cdot t1} \]
    4. sqrt-unprod10.8%

      \[\leadsto \color{blue}{\sqrt{\left(-t1\right) \cdot \left(-t1\right)}} \cdot \frac{v}{t1 \cdot t1} \]
    5. sqr-neg10.8%

      \[\leadsto \sqrt{\color{blue}{t1 \cdot t1}} \cdot \frac{v}{t1 \cdot t1} \]
    6. sqrt-prod5.1%

      \[\leadsto \color{blue}{\left(\sqrt{t1} \cdot \sqrt{t1}\right)} \cdot \frac{v}{t1 \cdot t1} \]
    7. add-sqr-sqrt11.2%

      \[\leadsto \color{blue}{t1} \cdot \frac{v}{t1 \cdot t1} \]
  8. Applied egg-rr11.2%

    \[\leadsto \color{blue}{t1 \cdot \frac{v}{t1 \cdot t1}} \]
  9. Taylor expanded in t1 around 0 9.8%

    \[\leadsto \color{blue}{\frac{v}{t1}} \]
  10. Final simplification9.8%

    \[\leadsto \frac{v}{t1} \]

Reproduce

?
herbie shell --seed 2023166 
(FPCore (u v t1)
  :name "Rosa's DopplerBench"
  :precision binary64
  (/ (* (- t1) v) (* (+ t1 u) (+ t1 u))))