Function cos

gecode/float/val.hpp:438–441

    return FloatVal(sin(x.x));
  }
  forceinline FloatVal
  cos(const FloatVal& x) {
    return FloatVal(cos(x.x));
  }
  forceinline FloatVal
  tan(const FloatVal& x) {
    return FloatVal(tan(x.x));