\frac{\frac{\left(i \cdot \left(\left(\alpha + \beta\right) + i\right)\right) \cdot \left(\beta \cdot \alpha + i \cdot \left(\left(\alpha + \beta\right) + i\right)\right)}{\left(\left(\alpha + \beta\right) + 2 \cdot i\right) \cdot \left(\left(\alpha + \beta\right) + 2 \cdot i\right)}}{\left(\left(\alpha + \beta\right) + 2 \cdot i\right) \cdot \left(\left(\alpha + \beta\right) + 2 \cdot i\right) - 1}\begin{array}{l}
\mathbf{if}\;\beta \le 1.47340572541546436 \cdot 10^{212}:\\
\;\;\;\;\frac{\frac{i \cdot \left(\left(\alpha + \beta\right) + i\right)}{\left(\alpha + \beta\right) + 2 \cdot i}}{\left(\left(\alpha + \beta\right) + 2 \cdot i\right) + \sqrt{1}} \cdot \left(\sqrt{\beta \cdot \alpha + i \cdot \left(\left(\alpha + \beta\right) + i\right)} \cdot \frac{\frac{\sqrt{\beta \cdot \alpha + i \cdot \left(\left(\alpha + \beta\right) + i\right)}}{\left(\alpha + \beta\right) + 2 \cdot i}}{\left(\left(\alpha + \beta\right) + 2 \cdot i\right) - \sqrt{1}}\right)\\
\mathbf{else}:\\
\;\;\;\;0\\
\end{array}double f(double alpha, double beta, double i) {
double r138656 = i;
double r138657 = alpha;
double r138658 = beta;
double r138659 = r138657 + r138658;
double r138660 = r138659 + r138656;
double r138661 = r138656 * r138660;
double r138662 = r138658 * r138657;
double r138663 = r138662 + r138661;
double r138664 = r138661 * r138663;
double r138665 = 2.0;
double r138666 = r138665 * r138656;
double r138667 = r138659 + r138666;
double r138668 = r138667 * r138667;
double r138669 = r138664 / r138668;
double r138670 = 1.0;
double r138671 = r138668 - r138670;
double r138672 = r138669 / r138671;
return r138672;
}
double f(double alpha, double beta, double i) {
double r138673 = beta;
double r138674 = 1.4734057254154644e+212;
bool r138675 = r138673 <= r138674;
double r138676 = i;
double r138677 = alpha;
double r138678 = r138677 + r138673;
double r138679 = r138678 + r138676;
double r138680 = r138676 * r138679;
double r138681 = 2.0;
double r138682 = r138681 * r138676;
double r138683 = r138678 + r138682;
double r138684 = r138680 / r138683;
double r138685 = 1.0;
double r138686 = sqrt(r138685);
double r138687 = r138683 + r138686;
double r138688 = r138684 / r138687;
double r138689 = r138673 * r138677;
double r138690 = r138689 + r138680;
double r138691 = sqrt(r138690);
double r138692 = r138691 / r138683;
double r138693 = r138683 - r138686;
double r138694 = r138692 / r138693;
double r138695 = r138691 * r138694;
double r138696 = r138688 * r138695;
double r138697 = 0.0;
double r138698 = r138675 ? r138696 : r138697;
return r138698;
}



Bits error versus alpha



Bits error versus beta



Bits error versus i
Results
if beta < 1.4734057254154644e+212Initial program 52.6
rmApplied add-sqr-sqrt52.6
Applied difference-of-squares52.6
Applied times-frac37.8
Applied times-frac35.7
rmApplied *-un-lft-identity35.7
Applied *-un-lft-identity35.7
Applied add-sqr-sqrt35.7
Applied times-frac35.7
Applied times-frac35.8
Simplified35.8
if 1.4734057254154644e+212 < beta Initial program 64.0
Taylor expanded around inf 43.3
Final simplification36.6
herbie shell --seed 2020027
(FPCore (alpha beta i)
:name "Octave 3.8, jcobi/4"
:precision binary64
:pre (and (> alpha -1) (> beta -1) (> i 1))
(/ (/ (* (* i (+ (+ alpha beta) i)) (+ (* beta alpha) (* i (+ (+ alpha beta) i)))) (* (+ (+ alpha beta) (* 2 i)) (+ (+ alpha beta) (* 2 i)))) (- (* (+ (+ alpha beta) (* 2 i)) (+ (+ alpha beta) (* 2 i))) 1)))