Dear GAP forum, Does anybody know of a way to efficiently get matrices (say with cyclotomic entries) from GAP to MATLAB? For instance, is there a package to export matrices as .mat files?
I have been getting by with a jerry-rigged solution where I make GAP print a matrix like A:=[[1,0],[0,1]];; to a file "A.m" containing a single string like "A=[1,0;0,1];". Then I have MATLAB read the file as a script. That works fine for small matrices, but for large ones (or for 3-tensors consisting of lots of matrices) it is prohibitively slow, both for GAP to print to the file and for MATLAB to interpret the result. For a sense of scale, at the moment I would like to export 95040 matrices each of size 540x540 to MATLAB, preferably as a 3-tensor so that I can easily iterate through the list. (The matrices are the image of a representation of M12 having degree 540.) Best regards, Joey Iverson Assistant Professor Department of Mathematics Iowa State University _______________________________________________ Forum mailing list Forum@gap-system.org https://mail.gap-system.org/mailman/listinfo/forum
