@stdlib/constants-float64-max-safe-lucas

0.2.2 • Public • Published

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FLOAT64_MAX_SAFE_LUCAS

Maximum safe Lucas number when stored in double-precision floating-point format.

Installation

npm install @stdlib/constants-float64-max-safe-lucas

Usage

var FLOAT64_MAX_SAFE_LUCAS = require( '@stdlib/constants-float64-max-safe-lucas' );

FLOAT64_MAX_SAFE_LUCAS

The maximum safe Lucas number when stored in double-precision floating-point format.

var bool = ( FLOAT64_MAX_SAFE_LUCAS === 7639424778862807 );
// returns true

Examples

var FLOAT64_MAX_SAFE_LUCAS = require( '@stdlib/constants-float64-max-safe-lucas' );

var v;
var i;

function lucas( n ) {
var a;
var b;
var c;
var i;

a = 2;
if ( n === 0 ) {
return a;
}
b = 1;
for ( i = 2; i <= n; i++ ) {
c = a + b;
a = b;
b = c;
}
return b;
}

for ( i = 0; i < 100; i++ ) {
v = lucas( i );
if ( v > FLOAT64_MAX_SAFE_LUCAS ) {
console.log( 'Unsafe: %d', v );
} else {
console.log( 'Safe:   %d', v );
}
}

C APIs

Usage

#include "stdlib/constants/float64/max_safe_lucas.h"

STDLIB_CONSTANT_FLOAT64_MAX_SAFE_LUCAS

Macro for the maximum safe Lucas number when stored in double-precision floating-point format.

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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Install

npm i @stdlib/constants-float64-max-safe-lucas

stdlib.io

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