## Skew symmetry property

The three types of derivatives: vectors-by-matrices, matrices-by-vectors, and matrices-by-matrices. These are not as widely considered and a notation is not widely agreed upon. However the second type (matrices-by-vectors) is widely used in Robotics. If we consider the following state form for a robot:&nbsp;&nbsp;&nbsp;&nbsp; The matrix is skew-symmetric.Here the matrix-by-vector derivative... [Read More]
Tags: Robotics

## EqualX is a great alternative to MathType

EqualX gives you the power and beauty for writing equations TeX/LaTeX in a simple to use editor.Type TeX or LaTeX Type your equation in the best typesetting language for equations, TeX. You can paste in your existing equations and mix TeX code with click-and-click.LaTeXDraw and Inkscape are best tools for... [Read More]
Tags: Tex

## MailIP

&nbsp;If you want to access to a your personal computer from anywhere via "Windows Remote Desktop Connection" you have to: firstly, configure your modem. Secondly, you must know your IP. Here I assume that you know how to configure your modem (if don't please see here) then you should use... [Read More]