\frac{\left(x - lo\right)}{\left(hi - lo\right)}double f(double lo, double hi, double x) {
double r910011 = x;
double r910012 = lo;
double r910013 = r910011 - r910012;
double r910014 = hi;
double r910015 = r910014 - r910012;
double r910016 = r910013 / r910015;
return r910016;
}