Writing OCTAVE binary matrices and MATLAB .mat files

[psheer]

Hi there

I am trying to write a standalone C program that can
convert a matrix into a binary matlab file. The binary
format is described here: 

 http://maxwell.me.gu.edu.au/spl/matlab-page/matfile_format.pdf

although previous posts to the octave lists say the 
MatLab file format for Matlab 5 is proprierary - ????

In any case, I suppose this is an OT question:
Does a standalone C library exist for writing matlab
files? -- something like libpng but for matlab matrices
instead of 2D png images?

Can someone tell me where in the octave source .mat files are
formatted so that i don't need to wade through it all?

if no such library exists, is anyone interested in helping
me implement the pdf spec above?

many thanks

-paul




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