README
Tribonacci
Compute the nth Tribonacci number.
The Tribonacci numbers are the integer sequence
The sequence is defined by the recurrence relation
with seed values F_0 = 0, F_1 = 0, and F_2 = 1.
Installation
npm install @stdlib/math-base-special-tribonacci
Usage
var tribonacci = require( '@stdlib/math-base-special-tribonacci' );
tribonacci( n )
Computes the nth Tribonacci number.
var v = tribonacci( 0 );
// returns 0
v = tribonacci( 1 );
// returns 0
v = tribonacci( 2 );
// returns 1
v = tribonacci( 3 );
// returns 1
v = tribonacci( 63 );
// returns 8607945812375585
If n > 63, the function returns NaN, as larger Tribonacci numbers cannot be safely represented in double-precision floating-point format.
var v = tribonacci( 64 );
// returns NaN
If not provided a nonnegative integer value, the function returns NaN.
var v = tribonacci( 3.14 );
// returns NaN
v = tribonacci( -1 );
// returns NaN
If provided NaN, the function returns NaN.
var v = tribonacci( NaN );
// returns NaN
Examples
var tribonacci = require( '@stdlib/math-base-special-tribonacci' );
var v;
var i;
for ( i = 0; i < 64; i++ ) {
v = tribonacci( 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.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2022. The Stdlib Authors.