This section is a work in progress please excuse the sparse documentation. If you'd like to use this question type and don't find the sufficient information on this page please email us.
This section will cover how to use the HTML & JavaScript (JS) question type to create matrix questions. Because of this, the HTML & JS question type is also sometime called matrix editor.
Below are examples of how this question type could be used
Matrix Questions
Tabular Input
Creating Matrix Question Types
Matrix objects in JavaScript are supported through the usage of MathJs, a mathematical library for JavaScript. Specifically this page covers the usage and support of matrix objects. https://mathjs.org/docs/datatypes/matrices.html
Below is an example of a matrix question.
Example Code
Body
Compute the product $AB$ of the matrices $$A = @matA, B = @matB$$
Explanation
By the row-column definition of the product of matrices
$$\eqalign{AB = &@matA @matB \cr
&@ans1}$$
JavaScript
function js_answer() {
/* global matrix matA u={} */
/* global matrix matB u={} */
/* global matrix ans1 u={} */
matA = math.matrix([[-3, -1, -5],
[-4, -5, 0],
[-2, -4, 5]]);
matB = math.matrix([[4, 4, 0],
[-5, 5, 0],
[2, 5, -3]]);
ans1 = math.multiply(matA, matB);
}
Preview