Xcos
MATLAB
Wolfram Mathematica
GNU Octave
Scilab
OpenModelica
Maxima
Sage Math
Monkkee
Ideanote
The Guide
Idea Notebook
x-whnb
Scrapbox
RunaBook
Reminisce Journal
Xcos MonkkeeMonkkee is so secure that the entries can be read only by you. If you lost the password it is lost forever. No one has access to even your password. It provides client side encryption i.e the entries are encrypted even before they are transferred to the server. It is easy to use. You can categorize your diary entries using tags.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Ideanote - Ideanote is the #1 rated Idea Management solution for companies of all sizes. Collect, develop and manage more of the right ideas from customers and employees to drive your growth.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
The Guide - The Guide is a two-pane outliner - a program that allows you to arrange text notes in a tree-like...
GNU Octave - GNU Octave is a programming language for scientific computing.
Idea Notebook - Idea Notebook is an app that allows you to keep track of your logs business ideas and track as well as organize them.