0.3.0 • Published 11 months ago

@stdlib/math-base-special-nonfibonacci v0.3.0

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Repository
github
Last release
11 months ago

Non-Fibonacci

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Compute the nth non-Fibonacci number.

The nth non-Fibonacci number is given by

where φ is the golden ratio.

Installation

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

Usage

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

nonfibonacci( n )

Computes the nth non-Fibonacci number.

var v = nonfibonacci( 1 );
// returns 4

v = nonfibonacci( 2 );
// returns 6

v = nonfibonacci( 3 );
// returns 7

If provided either a non-integer or n < 1, the function returns NaN.

var v = nonfibonacci( -1 );
// returns NaN

v = nonfibonacci( 3.14 );
// returns NaN

If provided NaN, the function returns NaN.

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

Examples

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

var v;
var i;

for ( i = 1; i < 100; i++ ) {
    v = nonfibonacci( i );
    console.log( 'nonfibonacci(%d) = %d', i, v );
}

C APIs

Usage

#include "stdlib/math/base/special/nonfibonacci.h"

stdlib_base_nonfibonacci( x )

Computes the nth non-Fibonacci number.

double out = stdlib_base_nonfibonacci( 1 );
// returns 4

out = stdlib_base_nonfibonacci( 2 );
// returns 6

The function accepts the following arguments:

  • x: [in] int32_t input value.
double stdlib_base_nonfibonacci( const int32_t x );

Examples

#include "stdlib/math/base/special/nonfibonacci.h"
#include <stdio.h>
#include <stdlib.h>
int main( void ) {
    int i;
    for ( i = 1; i < 12; i++ ) {
        double result = stdlib_base_nonfibonacci( i );
        printf( "x: %i => result: %lf", i , result );
    }
}

References


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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License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.