deg2radf

Convert an angle from degrees to radians (single-precision).

Installation

npm install @stdlib/math-base-special-deg2radf

Usage

var deg2radf = require( '@stdlib/math-base-special-deg2radf' );

deg2radf( x )

Converts an angle from degrees to radians (single-precision).

var r = deg2radf( 90.0 );
// returns ~1.571

r = deg2radf( -45.0 );
// returns ~-0.785

r = deg2radf( NaN );
// returns NaN

Examples

var randu = require( '@stdlib/random-base-randu' );
var deg2radf = require( '@stdlib/math-base-special-deg2radf' );

var d;
var r;
var i;

for ( i = 0; i < 100; i++ ) {
    d = (randu()*720.0) - 360.0;
    r = deg2radf( d );
    console.log( 'degrees: %d => radians: %d', d, r );
}

C APIs

Usage

#include "stdlib/math/base/special/deg2radf.h"

stdlib_base_deg2radf( x )

Converts an angle from degrees to radians (single-precision).

float y = stdlib_base_deg2radf( 90.0f );
// returns ~1.571f

The function accepts the following arguments:

• x: [in] float input value.

float stdlib_base_deg2radf( const float x );

Examples

#include "stdlib/math/base/special/deg2radf.h"
#include <stdio.h>

int main( void ) {
    const float x[] = { 45.0f, 90.0f, 0.0f, 0.0f/0.0f };

    float y;
    int i;
    for ( i = 0; i < 4; i++ ) {
        y = stdlib_base_deg2radf( x[ i ] );
        printf( "deg2radf(%f) = %f\n", x[ i ], y );
    }
}

See Also

• @stdlib/math-base/special/deg2rad: convert an angle from degrees to radians.

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.