Links to freeware for convolution, discrete cosine transform (DCT), fast Fourier transform (FFT), Abel transform, Hankel transform, Hilbert transform, and more. Primarily in C and Fortran.
http://www.jjj.de/fft/fftpage.html
program finds resistor values for simple resistor circuits from given initial conditions, can find suitable resistors in E6, E12, E24, E48 and E96 standard values
http://gamma.nic.fi/~rsel/
a co-design environment for control-dominated embedded systems
http://www-cad.eecs.berkeley.edu/~polis
programs for data analysis, graphics, statistics, sequence processing, densitometry, assays, ligand-binding studies, kinetics and more
http://www.biosoft.com/
Bsosc is a Bitscope oscilloscope to handle the Bitscope data capture device.
http://www.progsoc.uts.edu.au/~jhonan/
Mathtools.net is the technical computing portal for all scientific and engineering needs. The portal is provided as a free service to the scientific community and contains useful links for technical computing programmers.
http://www.mathtools.net/
Language Design for Multi-Domain Modeling
http://www.modelica.org/
computes approximate transformer requirements for one tube, or a series of tubes
http://www.neonshop.com/neonweb/transcalc.html