Function tan

gecode/float/val.hpp:442–445

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