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 2016-07-05 09:17:38 -0500 received badge ● Popular Question (source) 2016-07-05 09:17:38 -0500 received badge ● Notable Question (source) 2012-10-17 18:54:38 -0500 received badge ● Scholar (source) 2012-10-17 18:54:38 -0500 marked best answer How to convert sagemath matrix to R matrix? It looks like you have to put the matrix into a list representing a column vector. Then, you can use the r.matrix command. For example: m=matrix(3,4,[1,2,3,4,5,6,7,8,9,10,11,12]) r.matrix(m.transpose().list(),nrow=3)  gives the following matrix in R:  [,1] [,2] [,3] [,4] [1,] 1 2 3 4 [2,] 5 6 7 8 [3,] 9 10 11 12  2012-10-17 18:54:32 -0500 received badge ● Supporter (source) 2012-10-17 18:47:12 -0500 commented answer How to convert sagemath matrix to R matrix? Ah. I see. That makes sense. By converting the sagemath matrix into a list using its list method, r.matrix() accepts the list as input for the data argument. Also, for others who made read this comment, r.matrix(m.list(), nrow=3, byrow="False") or r.matrix(m.list(),ncol=4,byrow="False") yield the same R matrix as the one above. Thank you very much, calc314! 2012-10-17 17:17:52 -0500 asked a question How to convert sagemath matrix to R matrix? I have a 5 x 30 matrix, G, created in sagemath. The type is type 'sage.matrix.matrix_generic_dense.Matrix_generic_dense'. I want to convert this matrix to a R matrix to perform various manipulations using the R interface. How can I use sagemath matrix, G, to create a matrix in the R interface? I tried the following but to no avail. r.matrix(G) r.matrix(G,5,30)