stdlib-js
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About stdlib...
</summary>
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kernelSin
[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]
Compute the [sine][sine] of a double-precision floating-point number on
[-π/4, π/4].
bash
npm install @stdlib/math-base-special-kernel-sin
javascript
var kernelSin = require( '@stdlib/math-base-special-kernel-sin' );
#### kernelSin( x, y )
Computes the [sine][sine] of a double-precision floating-point number on [-π/4, π/4].
javascript
var v = kernelSin( 0.0, 0.0 );
// returns ~0.0
v = kernelSin( 3.141592653589793/6.0, 0.0 );
// returns ~0.5
v = kernelSin( 0.619, 9.279e-18 );
// returns ~0.58
v = kernelSin( NaN, 0.0 );
// returns NaN
v = kernelSin( 3.0, NaN );
// returns NaN
v = kernelSin( NaN, NaN );
// returns NaN
x and y).
- As components of a [double-double number][double-double-arithmetic], the two [double-precision floating-point numbers][ieee754] x and y must satisfy
ulp stands for [units in the last place][ulp].
javascript
var linspace = require( '@stdlib/array-base-linspace' );
var PI = require( '@stdlib/constants-float64-pi' );
var kernelSin = require( '@stdlib/math-base-special-kernel-sin' );
var x = linspace( -PI/4.0, PI/4.0, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( 'sine(%d) = %d', x[ i ], kernelSin( x[ i ], 0.0 ) );
}
c
#include "stdlib/math/base/special/kernel_sin.h"
#### stdlib_base_kernel_sin( x, y )
Computes the [sine][sine] of a double-precision floating-point number on [-π/4, π/4].
c
double out = stdlib_base_kernel_sin( 0.0, 0.0 );
// returns ~0.0
out = stdlib_base_kernel_sin( 0.619, 9.279e-18 );
// returns ~0.58
The function accepts the following arguments:
- x: [in] double input value (in radians, assumed to be bounded by ~pi/4 in magnitude).
- y: [in] double tail of x.
c
double stdlib_base_kernel_sin( const double x, const double y );
x and y).
c
#include "stdlib/math/base/special/kernel_sin.h"
#include <stdio.h>
int main( void ) {
const double x[] = { -0.7853981633974483, -0.6108652381980153, -0.4363323129985824, -0.26179938779914946, -0.08726646259971649, 0.08726646259971649, 0.26179938779914935, 0.43633231299858233, 0.6108652381980153, 0.7853981633974483 };
double out;
int i;
for ( i = 0; i < 10; i++ ) {
out = stdlib_base_kernel_sin( x[ i ], 0.0 );
printf ( "x: %lf, y: %lf, out: %lf\n", x[ i ], 0.0, out );
}
}
@stdlib/math-base/special/kernel-cos][@stdlib/math/base/special/kernel-cos]: compute the cosine of a double-precision floating-point number on [-π/4, π/4].
- [@stdlib/math-base/special/kernel-tan][@stdlib/math/base/special/kernel-tan]: compute the tangent of a double-precision floating-point number on [-π/4, π/4].
- [@stdlib/math-base/special/sin][@stdlib/math/base/special/sin]: compute the sine of a number.
