0.2.2 • Published 5 months ago
@stdlib/math-base-special-deg2rad v0.2.2
deg2rad
Convert an angle from degrees to radians.
Installation
npm install @stdlib/math-base-special-deg2rad
Usage
var deg2rad = require( '@stdlib/math-base-special-deg2rad' );
deg2rad( x )
Converts an angle from degrees to radians.
var r = deg2rad( 90.0 );
// returns ~1.571
r = deg2rad( -45.0 );
// returns ~-0.785
r = deg2rad( NaN );
// returns NaN
Examples
var randu = require( '@stdlib/random-base-randu' );
var deg2rad = require( '@stdlib/math-base-special-deg2rad' );
var d;
var r;
var i;
for ( i = 0; i < 100; i++ ) {
d = (randu()*720.0) - 360.0;
r = deg2rad( d );
console.log( 'degrees: %d => radians: %d', d, r );
}
C APIs
Usage
#include "stdlib/math/base/special/deg2rad.h"
stdlib_base_deg2rad( x )
Converts an angle from degrees to radians.
double y = stdlib_base_deg2rad( 90.0 );
// returns ~1.571
The function accepts the following arguments:
- x:
[in] double
input value.
double stdlib_base_deg2rad( const double x );
Examples
#include "stdlib/math/base/special/deg2rad.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 45.0, 90.0, 0.0, 0.0/0.0 };
double y;
int i;
for ( i = 0; i < 4; i++ ) {
y = stdlib_base_deg2rad( x[ i ] );
printf( "deg2rad(%lf) = %lf\n", x[ i ], y );
}
}
See Also
@stdlib/math-base/special/rad2deg
: convert an angle from radians to degrees.
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.