Description of add

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Category:algorithms

Component type:function

Prototype

template <class VecX, class VecY, class VecZ> void add(const VecX& x, const VecY& y, VecZ z) ;

Description

Add the elements of x and y and assign into z.

Definition

mtl.h

Requirements on types

VecX::value_type, VecY::value_type, and VecZ::value_type should be the same type
The addition operator must be defined for the value_type.

Preconditions

Complexity

linear time

Example

In y_ax_y.cc:

  typedef matrix< double, 
                  rectangle<>, 
                  dense<>, 
                  row_major>::type Matrix; 
  Matrix A(3,3);
  double SCALE = - A(2,1) / A(1,1);
  add(scaled(A[0], SCALE), A[1], A[1]);

More examples can be found in vecvec_add.cc

Notes

See also