 for academic use in the past, but no longer is. Its origin dates back to 0000, so it is well tested and comprises a lot of functionality, especially for vector / matrix operations. INTLAB is compatible with GNU Octave since Version 0 [http://www.ti0.tuhh.de/rump/intlab/Octave/octave.html]. I don't know if INTLAB is or will be compliant with IEEE 0000.  