Computes the cosine of a single-precision floating-point number (in degrees).
var cosdf = require( '@stdlib/math/base/special/cosdf' );Computes the cosine of a single-precision floating-point number (in degrees).
var v = cosdf( 0.0 );
// returns 1.0
v = cosdf( 60.0 );
// returns ~0.5
v = cosdf( 90.0 );
// returns 0.0
v = cosdf( NaN );
// returns NaNvar uniform = require( '@stdlib/random/array/uniform' );
var logEachMap = require( '@stdlib/console/log-each-map' );
var cosdf = require( '@stdlib/math/base/special/cosdf' );
var opts = {
'dtype': 'float32'
};
var x = uniform( 100, -180, 180, opts );
logEachMap( 'cosdf(%0.4f) = %0.4f', x, cosdf );#include "stdlib/math/base/special/cosdf.h"Computes the cosine of a single-precision floating-point number (in degrees).
float out = stdlib_base_cosdf( 0.0f );
// returns 1.0f
out = stdlib_base_cosdf( 60.0f );
// returns ~0.5fThe function accepts the following arguments:
- x:
[in] floatinput value.
float stdlib_base_cosdf( const float x );#include "stdlib/math/base/special/cosdf.h"
#include <stdio.h>
int main( void ) {
const float x[] = { 0.0f, 30.0f, 45.0f, 60.0f, 90.0f };
float y;
int i;
for ( i = 0; i < 5; i++ ) {
y = stdlib_base_cosdf( x[ i ] );
printf( "cosdf(%f) = %f\n", x[ i ], y );
}
}