Vec.h File Reference

#include <iostream>

Go to the source code of this file.

Classes
class	Vec
	A 3-vector useful for postions etc. More...
class	istream
	STL class. More...
class	ostream
	STL class. More...

Functions
Vec	Cross (const Vec &v1, const Vec &v2)
void	Vaxpy (double a, const Vec &x, Vec &y)
double	Length2 (const Vec &v)

Function Documentation

Cross()

Vec Cross ( const Vec & v1, const Vec & v2 )

inline

Definition at line 117 of file Vec.h.

                                               {
  return Vec(v1.x[1] * v2.x[2] - v1.x[2] * v2.x[1],
             v1.x[2] * v2.x[0] - v1.x[0] * v2.x[2],
             v1.x[0] * v2.x[1] - v1.x[1] * v2.x[0]);
}

Length2()

double Length2 ( const Vec & v )

inline

Definition at line 129 of file Vec.h.

                                    {
  return v.x[0] * v.x[0] + v.x[1] * v.x[1] + v.x[2] * v.x[2];
}

Vaxpy()

void Vaxpy ( double a, const Vec & x, Vec & y )

inline

Definition at line 123 of file Vec.h.

                                                  {
  y.x[0] += a * x.x[0];
  y.x[1] += a * x.x[1];
  y.x[2] += a * x.x[2];
}