operator/ (<valarray>)

Article
07/29/2015

Obtains the element-wise quotient between corresponding elements of two equally sized valarrays or of between a valarray a specified value.

template<class Type>
   valarray<Type> operator/(
      const valarray<Type>& _Left,
      const valarray<Type>& _Right
   );
template<class Type>
   valarray<Type> operator/(
      const valarray<Type>& _Left,
      const Type& _Right
   );
template<class Type>
   valarray<Type> operator/(
      const Type& _Left,
      const valarray<Type>& _Right
   );

Parameters

_Left
A value or valarray that serves as the dividend into which another value or valarray is to be divided in forming the quotient.
_Right
A value or valarray that serves as the divisor and that divides another value or valarray in forming the quotient.

Return Value

A valarray whose elements are the element-wise quotient of _Left divided by _Right.

Remarks

The arithmetic terminology used in describing a division:

quotient = dividend / divisor

Example

// valarray_op_equo.cpp
// compile with: /EHsc
#include <valarray>
#include <iostream>

int main( )
{
   using namespace std;
   int i;

   valarray<double> vaL ( 6 ), vaR ( 6 );
   valarray<double> vaNE ( 6 );
   for ( i = 0 ; i < 6 ; i += 2 )
      vaL [ i ] =  100;
   for ( i = 1 ; i < 6 ; i += 2 )
      vaL [ i ] =  -100;
   for ( i = 0 ; i < 6 ; i++ )
      vaR [ i ] =  2*i;
   
   cout << "The initial Left valarray is: ( ";
      for ( i = 0 ; i < 6 ; i++ )
         cout << vaL [ i ] << " ";
   cout << ")." << endl;

   cout << "The initial Right valarray is: ( ";
      for ( i = 0 ; i < 6 ; i++ )
         cout << vaR [ i ] << " ";
   cout << ")." << endl;

   vaNE = ( vaL / vaR );
   cout << "The element-by-element result of "
        << "the quotient is the\n valarray: ( ";
      for ( i = 0 ; i < 6 ; i++ )
         cout << vaNE [ i ] << " ";
   cout << ")." << endl;
}

The initial Left valarray is: ( 100 -100 100 -100 100 -100 ).
The initial Right valarray is: ( 0 2 4 6 8 10 ).
The element-by-element result of the quotient is the
 valarray: ( 1.#INF -50 25 -16.6667 12.5 -10 ).

Requirements

Header: <valarray>

Namespace: std

Share via