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Robert Israel

6467 Reputation

21 Badges

15 years, 278 days
University of British Columbia
Associate Professor Emeritus
North York, Ontario, Canada

MaplePrimes Activity


These are replies submitted by Robert Israel

See . I don't think Maple would be particularly useful for this sort of project. Code-breaking generally involves testing a huge number of possibilities, where a lower-level compiled language would have a great advantage in terms of speed.
Under Windows XP, Pentium 4, 3 GHz Maple V Release 4, grobner[gsolve](caprasse,{x,y,z,t}): .516 seconds discriminant4: .047 seconds gerdt: .235 seconds gonnet: .187 seconds Maple 11 Classic. caprasse: 1.078 seconds discriminant4: 0.203 seconds gerdt: 1.344 seconds gonnet: 1.047 seconds Cheers, Robert
It should be easy enough, with LinearAlgebra[MatrixFunction](A,exp(z),z); ... unless A is, say, a 3 x 3 Matrix with integer entries and an irreducible characteristic polynomial.
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