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@stdlib/math-base-special-kernel-sin

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@stdlib/math-base-special-kernel-sin

Compute the sine of a double-precision floating-point number on [-π/4, π/4].


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About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

kernelSin

NPM version Build Status Coverage Status

Compute the sine of a double-precision floating-point number on [-π/4, π/4].

Installation

npm install @stdlib/math-base-special-kernel-sin

Usage

var kernelSin = require( '@stdlib/math-base-special-kernel-sin' );
kernelSin( x, y )

Computes the sine of a double-precision floating-point number on [-π/4, π/4].

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

Notes

Examples

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 APIs

Usage

#include "stdlib/math/base/special/kernel_sin.h"
stdlib_base_kernel_sin( x, y )

Computes the sine of a double-precision floating-point number on [-π/4, π/4].

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.
double stdlib_base_kernel_sin( const double x, const double y );

Notes

Examples

#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 );
    }
}

See Also


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.

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Copyright © 2016-2024. The Stdlib Authors.

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Last updated on 24 Feb 2024

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