double-double/test/double-double/binary/dd-diff-dd.spec.spec.ts

Pure double-double precision functions *with strict error bounds*.

import { expect } from 'chai';
import { describe } from 'mocha';

import { ddDiffDd } from '../../../src/index.js';


describe('ddDiffDd', function() {
	it('should correctly minus some double-double precision values', 
	function() {
        // Some double-doubles
        let a = [-4.357806199228875e-10, 11638607.274152497];
        let b = [-4.511949494578893e-11, 2797357.2918064594];

        expect(ddDiffDd(a,b)).to.eql([-3.906611249770986e-10, 8841249.982346037]);
    });
});