Description of sym

sym_hull		Programmers Guide
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Category:intervals,utilities

Component type:function

Prototype

template <class Tnum> interval<Tnum> sym_hull(const Tnum& r) ;

Description

Returns an interval which as r for the upper bound and -r for the lower bound. In other words, [-r,r]. Identical in effect to calling the constructor interval<Tnum>(-r,r)

Definition

interval.cct

Preconditions

Complexity

Example

In hull.cc:

  dint A(1,2),B(3,4);
  cout << "hull(A,B)" << hull(A,B) << endl;
  cout << "hull(B,A)" << hull(B,A) << endl;
  cout << "hull(A,5)" << hull(A,Num(5)) << endl;
  cout << "hull(5,A)" << hull(Num(5),A) << endl;

  cout << "hull(5)" << hull(Num(5)) << endl;
  cout << "sym_hull(5)" << sym_hull(Num(5)) << endl;

Notes

See also