@stdlib/math-base-special-fibonacci
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    0.0.6 • Public • Published

    Fibonacci

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    Compute the nth Fibonacci number.

    The Fibonacci numbers are the integer sequence

    Fibonacci sequence

    The sequence is defined by the recurrence relation

    Fibonacci sequence recurrence relation

    with seed values F_0 = 0 and F_1 = 1.

    Installation

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

    Usage

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

    fibonacci( n )

    Computes the nth Fibonacci number.

    var v = fibonacci( 0 );
    // returns 0
    
    v = fibonacci( 1 );
    // returns 1
    
    v = fibonacci( 2 );
    // returns 1
    
    v = fibonacci( 3 );
    // returns 2
    
    v = fibonacci( 78 );
    // returns 8944394323791464

    If n > 78, the function returns NaN, as larger Fibonacci numbers cannot be safely represented in double-precision floating-point format.

    var v = fibonacci( 79 );
    // returns NaN

    If not provided a nonnegative integer value, the function returns NaN.

    var v = fibonacci( 3.14 );
    // returns NaN
    
    v = fibonacci( -1 );
    // returns NaN

    If provided NaN, the function returns NaN.

    var v = fibonacci( NaN );
    // returns NaN

    Examples

    var fibonacci = require( '@stdlib/math-base-special-fibonacci' );
    
    var v;
    var i;
    
    for ( i = 0; i < 79; i++ ) {
        v = fibonacci( i );
        console.log( v );
    }

    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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    License

    See LICENSE.

    Copyright

    Copyright © 2016-2021. The Stdlib Authors.

    Install

    npm i @stdlib/math-base-special-fibonacci

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    31

    Version

    0.0.6

    License

    Apache-2.0

    Unpacked Size

    51 kB

    Total Files

    12

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser