valarray sin() function in C++

The sin() function is defined in valarray header file. This function is used to calculate sine of the value of each element in valarray and returns a valarray containing the sines of all the elements. Syntax:

sin(varr);

Time Complexity: O(n)
Auxiliary Space: O(n)

Parameter: This function takes a mandatory parameter varr which represents valarray. 
Returns: This function returns a valarray containing the sines of all the elements.
 Below programs illustrate the above function: 
Example 1:-

CPP

// C++ program to demonstrate
// example of sin() function.

#include <bits/stdc++.h>
using namespace std;

int main()
{

    // Initializing valarray
    valarray<double>
        varr = { 0, 0.25, 0.5, 0.75, 1 };

    // Declaring new valarray
    valarray<double> varr1;

    // use of sin() function
    varr1 = sin(varr);

    // Displaying new elements value
    cout << "The new valarray with"
        << " manipulated values is : "
        << endl;

    for (double& x : varr1) {
        cout << x << " ";
    }

    cout << endl;

    return 0;
}

Output:

The new valarray with manipulated values is : 
0 0.247404 0.479426 0.681639 0.841471

Example 2:-

CPP

// C++ program to demonstrate
// example of sin() function.

#include <bits/stdc++.h>
using namespace std;

int main()
{

    // Initializing valarray
    valarray<double>
        varr = { 1.2, 3.14, 5.0, 0.0 };

    // Declaring new valarray
    valarray<double> varr1;

    // use of sin() function
    varr1 = sin(varr);

    // Displaying new elements value
    cout << "The new valarray with"
        << " manipulated values is : "
        << endl;

    for (double& x : varr1) {
        cout << x << " ";
    }

    cout << endl;

    return 0;
}

Output:

The new valarray with manipulated values is : 
0.932039 0.00159265 -0.958924 0