ASKSAGE: Sage Q&A Forum - Latest question feedhttp://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Mon, 05 Aug 2013 11:16:29 -0500sparse differential of a chain complexhttp://ask.sagemath.org/question/10415/sparse-differential-of-a-chain-complex/I'm trying to convert a simplicial complex into a chain complex and then extract the differential map. However the simplicial complex is rather large and sage runs out of memory when it tries to make the conversion. However, the differential should be a very sparse matrix and there should be plenty of memory to store a sparse representation of the differential. Is it possible to have sage compute the differential as a sparse matrix? Specifically the method which gives the out of memory error is `chain_complex()`.parsons.kyle.89Mon, 05 Aug 2013 11:16:29 -0500http://ask.sagemath.org/question/10415/