Matrix addition: 2x2 + 2x3

10172014, 06:23 AM
Post: #5




RE: Matrix addition: 2x2 + 2x3
The design philosophy of giac is: the user knows what he does, it's important to provide features to advanced users.
If you have 2 lists of different sizes to add, you can a/ forbid addition b/ add them by adding 0 at the right of the shortest c/ add them by adding 0 at the left of the shortest On the Prime, if you add two matrices with different sizes that are tagged as matrices a/ happens. For example matrix[[1,2],[3,4]]+identity(3) Otherwise and in Xcas, b/ applies if the list are tagged as 1dimensional polynomials (poly1[1,2]+poly1[1,2,3]) because coefficients are written in decreasing order and c/ applies otherwise. 

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Messages In This Thread 
Matrix addition: 2x2 + 2x3  DrD  10142014, 02:41 PM
RE: Matrix addition: 2x2 + 2x3  Tim Wessman  10142014, 03:44 PM
RE: Matrix addition: 2x2 + 2x3  resolved  10172014, 03:01 AM
RE: Matrix addition: 2x2 + 2x3  DrD  10142014, 04:00 PM
RE: Matrix addition: 2x2 + 2x3  parisse  10172014 06:23 AM
RE: Matrix addition: 2x2 + 2x3  DrD  10172014, 06:37 AM

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