/
matrix.test.js
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/
matrix.test.js
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var assert = require('assert');
var numbers = require('../index.js');
var matrix = numbers.matrix;
suite('numbers', function() {
console.log('\n\n\033[34mTesting Matrix Mathematics\033[0m');
test('should return sum of two matrices', function(done) {
var arrA = [
[0, 1, 2],
[3, 4, 5]
];
var arrB = [
[6, 7, 8],
[9, 10, 11]
];
var arrC = [
[6, 8, 10],
[12, 14, 16]
];
var res = matrix.addition(arrA, arrB);
assert.deepEqual(arrC, res);
done();
});
test('should returned scaled matrix', function(done) {
var array = [
[0, 1, 2],
[3, 4, 5]
];
var scalar = 5;
var res = matrix.scalar(array, scalar);
assert.deepEqual([[0, 5, 10], [15, 20, 25]], res);
done();
});
test('should return transposed matrix', function(done) {
var array = [
[0, 1, 2],
[3, 4, 5]
];
var transposed = [
[0, 3],
[1, 4],
[2, 5]
];
var res = matrix.transpose(array);
assert.deepEqual(transposed, res);
done();
});
test('should return identity matrix of dimension n', function(done) {
var identity = [
[1, 0, 0],
[0, 1, 0],
[0, 0, 1]
];
var res = matrix.identity(3);
assert.deepEqual(identity, res);
done();
});
test('should return dot product of two vectors', function(done) {
var vectorA = [0, 1, 2, 3];
var vectorB = [-1, 2, 4, 6];
var res = matrix.dotproduct(vectorA, vectorB);
assert.equal(28, res);
done();
});
test('should return product of two matrices', function(done) {
var matrixA = [
[0, 1, 2],
[3, 4, 5]
];
var matrixB = [
[0, 3],
[1, 4],
[2, 5]
];
var res = matrix.multiply(matrixA, matrixB);
assert.deepEqual([[5, 14], [14, 50]], res);
done();
});
test('should return determinant of matrix', function(done) {
var m1 = [
[2, 3],
[6, 7]
];
var res1 = matrix.determinant(m1);
assert.equal(-4, res1);
var m2 = [
[0, 1, 2],
[3, 4, 5],
[6, 7, 8]
];
var res2 = matrix.determinant(m2);
assert.equal(0, res2);
done();
});
});