Mega Code Archive
Do sqrt for all elements in a valarray
<![CDATA[
#include <iostream>
#include <valarray>
#include <cmath>
using namespace std;
int main()
{
valarray<int> v(10);
for(int i=0; i<10; i++)
v[i] = i*i;
cout << "Original contents: ";
for(int i=0; i<10; i++)
cout << v[i] << " \n\n";
v = sqrt(v);
for(int i=0; i<10; i++)
cout << v[i] << " \n\n";
cout << endl;
}
/*
Original contents: 0
1
4
9
16
25
36
49
64
81
0
1
2
3
4
5
6
7
8
9
*/
]]>