introduction to pytorch the addr function allows you to perform an outer product of two vectors and add it to given matrix the outer product of two vectors in linear algebra is matrix for exampleif you have vector with elements ( dimensionand another vector with elements ( dimension)then the outer product of and will be matrix with shape [ vmu [ unv umv , umvnu vnu vnumin pytorchthe function expects the first argument as the matrix to which we need to add the resultant outer productfollowed by the vectors for which the outer product needs to be computed in listing - we create two vectors ( and bwith three elements eachand perform an outer product to create matrixwhich is then added to another matrix (mlisting - outer product of vectors in [ ] torch tensor([ ]in [ ] out[ ]tensor([ ]in [ ] shape out[ ]torch size([ ]in [ ] in [ ] torch ones( ,