lidangzzz

export const name = 'square';

export function draw(ctx, length, x, y, color) {
  ctx.fillStyle = color;
  ctx.fillRect(x, y, length, length);

  return {
    length: length,
    x: x,
    y: y,

lidangzzz

print("Hello World")

lidangzzz

class LinearRegression {
    w: Mat;
    constructor() { }

    //x: M-by-N matrix. M data with N dimensions. Each row is an N-dim vector
    //y: M-by-1 matrix
    fit(x_: Mat, y_: Mat) : LinearRegression{
        let y = y_;        
        if (y_.rows != 1 && y_.cols == 1) {y = y_.T();}  //check the dimension of y
        var x = x_.resize(x_.rows, x_.cols + 1, 1);   //expan x_ with one more column with 1

lidangzzz

export function abc(x){return x*100;}

lidangzzz

function myFunction1(A)
{
   return A+A;
}

print("including library: test1");

let a = mat([[1]]);
print("a+a is " + myFunction1(a));

lidangzzz

function demo_add(a, b)
{
  return a+b;
}