deg2radf

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

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 uniform = require( '@stdlib/random/array/uniform' );
var logEachMap = require( '@stdlib/console/log-each-map' );
var deg2radf = require( '@stdlib/math/base/special/deg2radf' );

var opts = {
    'dtype': 'float32'
};
var d = uniform( 100, -360.0, 360.0, opts );

logEachMap( 'degrees: %0.4f => radians: %0.4f', d, deg2radf );

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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 );
    }
}

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See Also

• @stdlib/math/base/special/deg2rad: convert an angle from degrees to radians.
• @stdlib/math/base/special/rad2degf: convert an angle from radians to degrees (single-precision).