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compute-gcd
Advanced tools
Computes the greatest common divisor (gcd).
Note: the gcd is also known as the greatest common factor (gcf), highest common factor (hcf), highest common divisor, and greatest common measure (gcm).
$ npm install compute-gcd
For use in the browser, use browserify.
var gcd = require( 'compute-gcd' );
Computes the greatest common divisor (gcd) of two or more integers
.
var val = gcd( 48, 18 );
// returns 6
var val = gcd( 8, 12, 16 );
// returns 4
Computes the greatest common divisor (gcd) of two or more integers
.
var val = gcd( [48, 18] );
// returns 6
var val = gcd( [8, 12, 16] );
// returns 4
For object arrays
, provide an accessor function
for accessing array
values
var data = [
['beep', 4],
['boop', 8],
['bap', 12],
['baz', 16]
];
function getValue( d, i ) {
return d[ 1 ];
}
var arr = gcd( arr, getValue );
// returns 4
array
with a length less than 2
or a single integer
argument, the function returns null
.var gcd = require( 'compute-gcd' );
// Compute the gcd of random tuples...
var x, y, z, arr, val;
for ( var i = 0; i < 100; i++ ) {
x = Math.round( Math.random()*50 );
y = Math.round( Math.random()*50 );
z = Math.round( Math.random()*50 );
arr = [ x, y, z ];
val = gcd( arr );
console.log( arr, val );
}
To run the example code from the top-level application directory,
$ node ./examples/index.js
Unit tests use the Mocha test framework with Chai assertions. To run the tests, execute the following command in the top-level application directory:
$ make test
All new feature development should have corresponding unit tests to validate correct functionality.
This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:
$ make test-cov
Istanbul creates a ./reports/coverage
directory. To access an HTML version of the report,
$ make view-cov
Copyright © 2014-2015. Athan Reines.
FAQs
Computes the greatest common divisor (gcd).
The npm package compute-gcd receives a total of 909,951 weekly downloads. As such, compute-gcd popularity was classified as popular.
We found that compute-gcd demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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