{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "in-0",
   "metadata": {},
   "source": [
    "# numbl in the browser\n",
    "\n",
    "This is **numbl** (https://numbl.org) running as a JupyterLite kernel: MATLAB-syntax numerical\n",
    "computing that executes entirely in your browser tab. There is no server, no\n",
    "kernel process, and nothing to install.\n",
    "\n",
    "Run each cell with **Shift+Enter**. Variables persist from one cell to the\n",
    "next, just like a MATLAB session."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "in-1",
   "metadata": {},
   "source": [
    "## Compute with matrices"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "in-2",
   "metadata": {},
   "outputs": [],
   "source": [
    "A = magic(4)\n",
    "b = (1:4)';\n",
    "x = A \\ b;\n",
    "fprintf('solved a 4x4 system, residual = %.2e\\n', norm(A * x - b));"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "in-3",
   "metadata": {},
   "source": [
    "## Plot, right in the notebook"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "in-4",
   "metadata": {},
   "outputs": [],
   "source": [
    "x = linspace(0, 2 * pi, 400);\n",
    "plot(x, sin(x), 'b-');\n",
    "hold on;\n",
    "plot(x, sin(2 * x), 'r--');\n",
    "hold off;\n",
    "legend('sin(x)', 'sin(2x)');\n",
    "title('plotting works client-side');\n",
    "xlabel('x'); ylabel('y');"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "in-5",
   "metadata": {},
   "source": [
    "## 3-D figures are interactive (drag to rotate)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "in-6",
   "metadata": {},
   "outputs": [],
   "source": [
    "surf(peaks(40));\n",
    "title('peaks');"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "in-7",
   "metadata": {},
   "source": [
    "## What's in this demo\n",
    "\n",
    "A guided tour of the language:\n",
    "\n",
    "1. [Data types and operators](./02-data-types-and-operators.ipynb)\n",
    "2. [Matrices and indexing](./03-matrices-and-indexing.ipynb)\n",
    "3. [Control flow and functions](./04-control-flow-and-functions.ipynb)\n",
    "4. [Linear algebra](./05-linear-algebra.ipynb)\n",
    "5. [Data structures and strings](./06-data-structures-and-strings.ipynb)\n",
    "6. [Numerical methods](./07-numerical-methods.ipynb)\n",
    "7. [Plotting gallery](./08-plotting.ipynb)\n",
    "\n",
    "Advanced MATLAB features:\n",
    "\n",
    "8. [Classes and object-oriented programming](./09-classes-and-oop.ipynb)\n",
    "9. [Namespaces and packages](./10-namespaces-and-packages.ipynb)\n",
    "\n",
    "And finally:\n",
    "\n",
    "10. [Installing packages with mip](./11-mip-packages.ipynb)"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "numbl (MATLAB syntax)",
   "language": "numbl",
   "name": "numbl"
  },
  "language_info": {
   "codemirror_mode": "octave",
   "file_extension": ".m",
   "mimetype": "text/x-octave",
   "name": "numbl",
   "nbconvert_exporter": "script",
   "pygments_lexer": "matlab"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 5
}