diff'(Matrix,Matrix) -- differentiate a matrix by a matrix, the dual notion
Synopsis
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Function: diff'
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- Usage:
h = diff'(m,n)
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Inputs:
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m, a matrix, a map m : F <--- P between free modules of ranks f and p.
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n, a matrix, a map n : G <--- Q between free modules of ranks g and q.
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Outputs:
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h, a matrix, a matrix with the shape h : F ** dual G <--- P ** dual Q, whose entry in the slot hg*i+j,q*k+l is the result of differentiating nj,l, by mi,k