Tag Archives: javascript

javascript programming

The Jemula8 – online kernels with node.js .

The author tell us about the Jemula8 : An object-oriented JavaScript x86 Emulator for Node.js and the browser. jemul8 takes an object-oriented approach to emulation. Primarily an educational tool, it aims to provide a detailed description of the internal workings of an IBM-compatible PC. It is built using the easy-to-use language JavaScript, so it may… Read More »

JavaScript – Processing.js 2D library – part 004.

The Processing.js is available for Linux, Mac OS X, and Windows and come with the last version 3.3.7 (13 March 2018). Today I tested processing.js for android. They say us about this issue: Use Processing for Android to create Android apps with ease, including live wallpapers, watch faces, and VR apps. You can run your… Read More »

JavaScript – Google add subscribe online tool button for YouTube channel .

Google come with a new feature for development: one subscribe online tool button for YouTube channel. You can to insert youtube channel button on your page by using this tool. This online tool lets you configure an embedded subscription button for your channel by using Channel Name , ID, Layout,Theme, Subscriber count. If you look… Read More »

HTML5 – Example of 360 online video player.

In this tutorial, I will show you a source code for a video file player in HTML5. The main reason I created this source code was: testing 360 degree and / or 3D ( red and blue ) video files created with the 3D Blender rendering program. The source code is very simple. We have… Read More »

JavaScript – the MathJax display engine .

The MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all modern browsers. Just download it from official website and used like into the next example:

<!DOCTYPE html>
<html>
<head>
<title>MathJax TeX Test Page</title>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
  tex2jax: {inlineMath: [['$','$'], ['\\(','\\)']]}
});
</script>
<script type="text/javascript" async src="MathJax-2.6-latest/MathJax.js?config=TeX-AMS_CHTML"></script>
</head>
<body>
<p>  $$
  A=\begin{pmatrix}
  a_{11} & a_{12} & \dots & a_{1n} \\
  a_{21} & a_{22} & \dots & a_{2n} \\
  \vdots & \vdots & \ddots & \vdots \\
  a_{m1} & a_{m2} & \dots & a_{mn}
  \end{pmatrix}$$</p>
<hr>
  <p>When $a \ne 0$, there are two solutions to \(ax^2 + bx + c = 0\) and they are
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$</p>
<hr>
<p>$$\alpha, \beta, …, \omega$$</p>
<hr>
<p>\[ \Phi(x) = \frac{1}{\sqrt{2 \pi}}
  \int_{-\infty}^x e^{-\xi^2/2}\; d\xi \]</p>
</body>
</html>

<!DOCTYPE html>

<html>

<head>

<title>MathJax TeX Test Page</title>

MathJax.Hub.Config({

tex2jax: {inlineMath: [['$','$'], ['\$','\$']]}

});

</script>

</head>

<body>

<p> $$

A=\begin{pmatrix}

a_{11} & a_{12} & \dots & a_{1n} \\

a_{21} & a_{22} & \dots & a_{2n} \\

\vdots & \vdots & \ddots & \vdots \\

a_{m1} & a_{m2} & \dots & a_{mn}

\end{pmatrix}$$</p>

<hr>

<p>When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$ and they are

$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$</p>

<hr>

<p>$$\alpha, \beta, …, \omega$$</p>

<hr>

<p>\[ \Phi(x) = \frac{1}{\sqrt{2 \pi}}

\int_{-\infty}^x e^{-\xi^2/2}\; d\xi \]</p>

</body>

</html>

The result of this script can be see into the next image: