\sin \left({\left(\sqrt{\tan^{-1}_* \frac{b}{b}}\right)}^{\left(b - a\right)}\right)double f(double a, double b) {
double r8032 = b;
double r8033 = atan2(r8032, r8032);
double r8034 = sqrt(r8033);
double r8035 = a;
double r8036 = r8032 - r8035;
double r8037 = pow(r8034, r8036);
double r8038 = sin(r8037);
return r8038;
}