4K Video Downloader is a video and audio downloader for YouTube, Vimeo, Facebook, Dailymotion, Metacafe, and other video-sharing services. It features video quality up to 4k resolution, FLV, MP4, and MKV support, extraction of audio to the MP3 format, and a "Smart Mode" for fast downloads.
Kigo Video Converter Pro is a DVD ripping, DVD creation, Web video downloader, and video conversion tool. It supports all popular video formats including FLV, MPEG1, MPEG2, MP4, 3GP, 3G2, MOV, AVI, M2TS, and MPEG TS/TP (for HD Video) and includes output presets for iPod, iPhone, iPhone 3G, PSP, PS3, Apple TV, PSP, and Zune.
jMathLab is a platform for mathematical and numerical computations. It uses the Matlab/Octave programming language. It runs on any platform where Java is installed, and can also run on the Web browser. The following packages are included: symbolic calculations (simplification, differentials, integration), numeric calculations, evaluations of mathematical functions, special functions, linear algebra with vectors and matrices, plotting data and functions, saving data (vectors and matrices) in files, random numbers, statistics, and solving linear and non-linear equations