mirror of
https://github.com/josdejong/mathjs.git
synced 2026-01-18 14:59:29 +00:00
51 lines
1.7 KiB
JavaScript
51 lines
1.7 KiB
JavaScript
// test divide
|
|
var assert = require('assert');
|
|
var math = require('../../../math.js');
|
|
|
|
// TODO: test parser
|
|
|
|
// number
|
|
assert.equal(math.divide(4, 2), 2);
|
|
assert.equal(math.divide(-4, 2), -2);
|
|
assert.equal(math.divide(4, -2), -2);
|
|
assert.equal(math.divide(-4, -2), 2);
|
|
assert.equal(math.divide(4, 0), Infinity);
|
|
assert.equal(math.divide(0, -5), 0);
|
|
assert.ok(isNaN(math.divide(0, 0)));
|
|
|
|
// wrong arguments
|
|
assert.throws(function () {math.divide(2,3,4); });
|
|
assert.throws(function () {math.divide(2); });
|
|
|
|
// complex
|
|
assert.deepEqual(math.divide(math.complex('2+3i'), 2), math.complex('1+1.5i'));
|
|
assert.deepEqual(math.divide(math.complex('2+3i'), math.complex('4i')), math.complex('0.75 - 0.5i'));
|
|
assert.deepEqual(math.divide(math.complex('2i'), math.complex('4i')), math.complex('0.5'));
|
|
assert.deepEqual(math.divide(4, math.complex('1+2i')), math.complex('0.8 - 1.6i'));
|
|
|
|
// unit
|
|
assert.equal(math.divide(math.unit('5 m'), 10).toString(), '500 mm');
|
|
assert.throws(function () {math.divide(10, math.unit('5 m')).toString()});
|
|
|
|
// matrix, array, range
|
|
assert.deepEqual(math.divide(math.range(2,2,6), 2), [1,2,3]);
|
|
a = math.matrix([[1,2],[3,4]]);
|
|
assert.deepEqual(math.divide(a, 2), math.matrix([[0.5,1],[1.5,2]]));
|
|
assert.deepEqual(math.divide(a.valueOf(), 2), [[0.5,1],[1.5,2]]);
|
|
assert.deepEqual(math.divide([], 2), []);
|
|
assert.deepEqual(math.divide([], 2), []);
|
|
assert.deepEqual(math.format(math.divide(1, [
|
|
[ 1, 4, 7],
|
|
[ 3, 0, 5],
|
|
[-1, 9, 11]
|
|
])), math.format([
|
|
[ 5.625, -2.375, -2.5],
|
|
[ 4.75, -2.25, -2],
|
|
[-3.375, 1.625, 1.5]
|
|
]));
|
|
a = math.matrix([[1,2],[3,4]]);
|
|
b = math.matrix([[5,6],[7,8]]);
|
|
assert.deepEqual(math.divide(a, b), math.matrix([[3,-2], [2,-1]]));
|
|
assert.throws(function () {math.divide(a, [[1]])});
|
|
|