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20121017 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 gives the following matrix in R: 
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20121017 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! 
20121017 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
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.
