mirror of
https://github.com/josdejong/mathjs.git
synced 2025-12-08 19:46:04 +00:00
27 lines
702 B
JavaScript
27 lines
702 B
JavaScript
var assert = require('assert');
|
|
var math = require('../../../index.js');
|
|
|
|
describe('det', function() {
|
|
|
|
it('should calculate correctly the determinant of a number', function() {
|
|
assert.equal(math.det(3), 3);
|
|
});
|
|
|
|
it('should calculate correctly the determinant of a 2x2 matrix', function() {
|
|
assert.equal(math.det([5]), 5);
|
|
assert.equal(math.det([[1,2],[3,4]]), -2);
|
|
assert.equal(math.det(math.matrix([[1,2],[3,4]])), -2);
|
|
assert.equal(math.det([
|
|
[-2, 2, 3],
|
|
[-1, 1, 3],
|
|
[ 2, 0, -1]
|
|
]), 6);
|
|
assert.equal(math.det([
|
|
[ 1, 4, 7],
|
|
[ 3, 0, 5],
|
|
[-1, 9, 11]
|
|
]), -8);
|
|
assert.equal(math.det(math.diag([4,-5,6])), -120);
|
|
});
|
|
|
|
}); |