Sine

Compute the sine of a single-precision floating-point number (in radians).

Installation

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

Usage

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

sinf( x )

Computes the sine of a single-precision floating-point number (in radians).

var v = sinf( 0.0 );
// returns ~0.0

v = sinf( 3.141592653589793/2.0 );
// returns ~1.0

v = sinf( -3.141592653589793/6.0 );
// returns ~-0.5

Examples

var uniform = require( '@stdlib/random-array-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var TWO_PI = require( '@stdlib/constants-float32-two-pi' );
var sinf = require( '@stdlib/math-base-special-sinf' );

var opts = {
    'dtype': 'float32'
};
var x = uniform( 100, 0.0, TWO_PI, opts );

logEachMap( 'sinf(%0.4f) = %0.4f', x, sinf );

C APIs

Usage

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

stdlib_base_sinf( x )

Computes the sine of a single-precision floating-point number (in radians).

float y = stdlib_base_sinf( 3.141592653589793f / 2.0f );
// returns ~1.0f

The function accepts the following arguments:

• x: [in] float input value.

float stdlib_base_sinf( const float x );

Examples

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

int main( void ) {
    const float x[] = { 0.0f, 0.523f, 0.785f, 1.047f, 3.14f };

    float y;
    int i;
    for ( i = 0; i < 5; i++ ) {
        y = stdlib_base_sinf( x[ i ] );
        printf( "sinf(%f) = %f\n", x[ i ], y );
    }
}

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

Copyright

Copyright © 2016-2026. The Stdlib Authors.