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Sine
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Compute the [sine][sine] of a number.
bash
npm install @stdlib/math-base-special-sin
javascript
var sin = require( '@stdlib/math-base-special-sin' );
#### sin( x )
Computes the [sine][sine] of a number (in radians).
javascript
var v = sin( 0.0 );
// returns ~0.0
v = sin( 3.141592653589793/2.0 );
// returns ~1.0
v = sin( -3.141592653589793/6.0 );
// returns ~-0.5
javascript
var linspace = require( '@stdlib/array-base-linspace' );
var TWO_PI = require( '@stdlib/constants-float64-two-pi' );
var sin = require( '@stdlib/math-base-special-sin' );
var x = linspace( 0.0, TWO_PI, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( sin( x[ i ] ) );
}
c
#include "stdlib/math/base/special/sin.h"
#### stdlib_base_sin( x )
Computes the [sine][sine] of a number (in radians).
c
double y = stdlib_base_sin( 3.141592653589793 / 2.0 );
// returns ~1.0
The function accepts the following arguments:
- x: [in] double input value.
c
double stdlib_base_sin( const double x );
c
#include "stdlib/math/base/special/sin.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 0.0, 0.523, 0.785, 1.047, 3.14 };
double y;
int i;
for ( i = 0; i < 5; i++ ) {
y = stdlib_base_sin( x[ i ] );
printf( "sin(%lf) = %lf\n", x[ i ], y );
}
}
@stdlib/math-base/special/cos][@stdlib/math/base/special/cos]: compute the cosine of a number.
- [@stdlib/math-base/special/sinpi][@stdlib/math/base/special/sinpi]: compute sin(πx).
- [@stdlib/math-base/special/tan][@stdlib/math/base/special/tan]: evaluate the tangent of a number.
