mcabbott/Tullio.jl

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Tullio.jl Tullio is a very flexible einsum macro. It understands many array operations written in index notation -- not just matrix multiplication and permutations, but also convolutions, stencils, scatter/gather, and broadcasting. For example: @tullio M[x,y,c] := N[x+i, y+j,c] * K[i,j] # sum over i,j, and create M @tullio S[x] = P[x,y] * log(Q[x,y] / R[y]) # sum over y, and write into S @tullio A[i,j] += B[i,k,l] * C[l,j] * D[k,j] # sum over k,l, and add to values in A @tullio (*) Z[j]...