quaeratin/test/double-expansion/e-mult-by-neg-2.spec.ts

An extended precision floating point library (as per Shewchuk) - precision only limited by overflow / underflow

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

import { eMultByNeg2 } from '../../src/index.js';


describe('eMultByNeg2', function() {
	it('should correctly multiply some double floating point expansions by -2', 
	function() {
        let a = [-4.357806199228875e-10, 11_638_607.274152497];

        expect(eMultByNeg2(a)).to.eql([8.71561239845775e-10, -23277214.548304994]);
    });
});