\sqrt{1 + {x}^{2}} - \sqrt{1 + {\left(x + 1\right)}^{2}}\sqrt{1 + {x}^{2}} - \sqrt{1 + {\left(x + 1\right)}^{2}}double code(double x) {
return ((double) (((double) sqrt(((double) (1.0 + ((double) pow(x, 2.0)))))) - ((double) sqrt(((double) (1.0 + ((double) pow(((double) (x + 1.0)), 2.0))))))));
}
double code(double x) {
return ((double) (((double) sqrt(((double) (1.0 + ((double) pow(x, 2.0)))))) - ((double) sqrt(((double) (1.0 + ((double) pow(((double) (x + 1.0)), 2.0))))))));
}



Bits error versus x
Results
Initial program 30.5
Final simplification30.5
herbie shell --seed 2020152
(FPCore (x)
:name "(- (sqrt (+ 1 (pow x 2))) (sqrt (+ 1 (pow (+ x 1) 2))))"
:precision binary64
(- (sqrt (+ 1.0 (pow x 2.0))) (sqrt (+ 1.0 (pow (+ x 1.0) 2.0)))))