double code(double t) {
return ((double) (1.0 - ((double) (1.0 / ((double) (2.0 + ((double) (((double) (2.0 - ((double) (((double) (2.0 / t)) / ((double) (1.0 + ((double) (1.0 / t)))))))) * ((double) (2.0 - ((double) (((double) (2.0 / t)) / ((double) (1.0 + ((double) (1.0 / t))))))))))))))));
}
double code(double t) {
return ((double) (1.0 - ((double) (1.0 / ((double) (2.0 + ((double) (((double) (2.0 - ((double) (2.0 / ((double) (1.0 + ((double) (1.0 * t)))))))) * ((double) (2.0 - ((double) (2.0 / ((double) (1.0 + ((double) (1.0 * t))))))))))))))));
}



Bits error versus t
Results
Initial program 0.0
Simplified0.0
Final simplification0.0
herbie shell --seed 2020191
(FPCore (t)
:name "Kahan p13 Example 3"
:precision binary64
(- 1.0 (/ 1.0 (+ 2.0 (* (- 2.0 (/ (/ 2.0 t) (+ 1.0 (/ 1.0 t)))) (- 2.0 (/ (/ 2.0 t) (+ 1.0 (/ 1.0 t)))))))))