\[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1.0\right) \cdot \log a\right) - b}}{y}\]
Test:
Numeric.SpecFunctions:incompleteBetaWorker from math-functions-0.1.5.2
Bits:
128 bits
Bits error versus x
Bits error versus y
Bits error versus z
Bits error versus t
Bits error versus a
Bits error versus b
Time: 1.1 m
Input Error: 45.5
Output Error: 8.2
Log:
Profile: 🕒
\(\begin{cases} \frac{\frac{x}{y} \cdot \left({a}^{t} \cdot {z}^{y}\right)}{\left(a \cdot b + a\right) + \left(\frac{1}{2} \cdot a\right) \cdot \left(b \cdot b\right)} & \text{when } b \le -3.8209836083456835 \cdot 10^{+99} \\ \frac{\left(x \cdot {z}^{y}\right) \cdot {a}^{\left(t - 1.0\right)}}{\frac{1}{2} \cdot \left(y \cdot {b}^2\right) + \left(y + y \cdot b\right)} & \text{when } b \le 3194606.6789062954 \\ \frac{{\left(\frac{1}{{a}^{1.0}}\right)}^{1.0} \cdot x}{y \cdot e^{b}} & \text{otherwise} \end{cases}\)

    if b < -3.8209836083456835e+99

    1. Started with
      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1.0\right) \cdot \log a\right) - b}}{y}\]
      54.3
    2. Applied simplify to get
      \[\color{red}{\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1.0\right) \cdot \log a\right) - b}}{y}} \leadsto \color{blue}{\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}}}\]
      62.8
    3. Using strategy rm
      62.8
    4. Applied sub-neg to get
      \[\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{\color{red}{\left(t - 1.0\right)}}}{e^{b}} \leadsto \left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{\color{blue}{\left(t + \left(-1.0\right)\right)}}}{e^{b}}\]
      62.8
    5. Applied unpow-prod-up to get
      \[\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{\color{red}{{a}^{\left(t + \left(-1.0\right)\right)}}}{e^{b}} \leadsto \left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{\color{blue}{{a}^{t} \cdot {a}^{\left(-1.0\right)}}}{e^{b}}\]
      62.8
    6. Applied associate-/l* to get
      \[\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \color{red}{\frac{{a}^{t} \cdot {a}^{\left(-1.0\right)}}{e^{b}}} \leadsto \left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \color{blue}{\frac{{a}^{t}}{\frac{e^{b}}{{a}^{\left(-1.0\right)}}}}\]
      62.8
    7. Applied taylor to get
      \[\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{t}}{\frac{e^{b}}{{a}^{\left(-1.0\right)}}} \leadsto \left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{t}}{b \cdot a + \left(\frac{1}{2} \cdot \left({b}^2 \cdot a\right) + a\right)}\]
      29.2
    8. Taylor expanded around 0 to get
      \[\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{t}}{\color{red}{b \cdot a + \left(\frac{1}{2} \cdot \left({b}^2 \cdot a\right) + a\right)}} \leadsto \left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{t}}{\color{blue}{b \cdot a + \left(\frac{1}{2} \cdot \left({b}^2 \cdot a\right) + a\right)}}\]
      29.2
    9. Applied simplify to get
      \[\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{t}}{b \cdot a + \left(\frac{1}{2} \cdot \left({b}^2 \cdot a\right) + a\right)} \leadsto \frac{\frac{x}{y} \cdot \left({a}^{t} \cdot {z}^{y}\right)}{\left(a \cdot b + a\right) + \left(\frac{1}{2} \cdot a\right) \cdot \left(b \cdot b\right)}\]
      29.2

    10. Applied final simplification

    if -3.8209836083456835e+99 < b < 3194606.6789062954

    1. Started with
      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1.0\right) \cdot \log a\right) - b}}{y}\]
      33.1
    2. Applied simplify to get
      \[\color{red}{\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1.0\right) \cdot \log a\right) - b}}{y}} \leadsto \color{blue}{\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}}}\]
      14.3
    3. Using strategy rm
      14.3
    4. Applied associate-*l/ to get
      \[\color{red}{\left(\frac{x}{y} \cdot {z}^{y}\right)} \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}} \leadsto \color{blue}{\frac{x \cdot {z}^{y}}{y}} \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}}\]
      14.3
    5. Applied frac-times to get
      \[\color{red}{\frac{x \cdot {z}^{y}}{y} \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}}} \leadsto \color{blue}{\frac{\left(x \cdot {z}^{y}\right) \cdot {a}^{\left(t - 1.0\right)}}{y \cdot e^{b}}}\]
      10.3
    6. Applied taylor to get
      \[\frac{\left(x \cdot {z}^{y}\right) \cdot {a}^{\left(t - 1.0\right)}}{y \cdot e^{b}} \leadsto \frac{\left(x \cdot {z}^{y}\right) \cdot {a}^{\left(t - 1.0\right)}}{\frac{1}{2} \cdot \left(y \cdot {b}^2\right) + \left(y + y \cdot b\right)}\]
      2.8
    7. Taylor expanded around 0 to get
      \[\frac{\left(x \cdot {z}^{y}\right) \cdot {a}^{\left(t - 1.0\right)}}{\color{red}{\frac{1}{2} \cdot \left(y \cdot {b}^2\right) + \left(y + y \cdot b\right)}} \leadsto \frac{\left(x \cdot {z}^{y}\right) \cdot {a}^{\left(t - 1.0\right)}}{\color{blue}{\frac{1}{2} \cdot \left(y \cdot {b}^2\right) + \left(y + y \cdot b\right)}}\]
      2.8

    if 3194606.6789062954 < b

    1. Started with
      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1.0\right) \cdot \log a\right) - b}}{y}\]
      50.5
    2. Applied simplify to get
      \[\color{red}{\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1.0\right) \cdot \log a\right) - b}}{y}} \leadsto \color{blue}{\left(\frac{x}{y} \cdot {z}^{y}\right) \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}}}\]
      42.7
    3. Using strategy rm
      42.7
    4. Applied associate-*l/ to get
      \[\color{red}{\left(\frac{x}{y} \cdot {z}^{y}\right)} \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}} \leadsto \color{blue}{\frac{x \cdot {z}^{y}}{y}} \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}}\]
      42.7
    5. Applied frac-times to get
      \[\color{red}{\frac{x \cdot {z}^{y}}{y} \cdot \frac{{a}^{\left(t - 1.0\right)}}{e^{b}}} \leadsto \color{blue}{\frac{\left(x \cdot {z}^{y}\right) \cdot {a}^{\left(t - 1.0\right)}}{y \cdot e^{b}}}\]
      40.4
    6. Applied taylor to get
      \[\frac{\left(x \cdot {z}^{y}\right) \cdot {a}^{\left(t - 1.0\right)}}{y \cdot e^{b}} \leadsto \frac{{\left(\frac{1}{{a}^{1.0}}\right)}^{1.0} \cdot x}{y \cdot e^{b}}\]
      7.6
    7. Taylor expanded around 0 to get
      \[\frac{\color{red}{{\left(\frac{1}{{a}^{1.0}}\right)}^{1.0} \cdot x}}{y \cdot e^{b}} \leadsto \frac{\color{blue}{{\left(\frac{1}{{a}^{1.0}}\right)}^{1.0} \cdot x}}{y \cdot e^{b}}\]
      7.6

  1. Removed slow pow expressions

Original test:


(lambda ((x default) (y default) (z default) (t default) (a default) (b default))
  #:name "Numeric.SpecFunctions:incompleteBetaWorker from math-functions-0.1.5.2"
  (/ (* x (exp (- (+ (* y (log z)) (* (- t 1.0) (log a))) b))) y))