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Questions about Mathematica functionality related to manipulating vector spaces and linear mappings between such spaces. This includes determination of matrix properties, matrix transformations, decompositions, and factoring.

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Decomposition of the vector in terms of the basis

Let I have basis of two linearly independent vectors {d[1,2], d[1,3]}. Let I need to decompose vector 5 d[1,2] it terms of this basis. I try to Solve[5 d[1,2]==a d[1,2] +b d[1,3],{a,b}]. I expect so …
Филя Усков's user avatar