Small issue in the explanation of the ptr parameter?

[filippobistaffa]

In the explanation of the parameters for the sparse version, it says:

ptr: Column pointer if O is CSC or row pointer if O is CSR. The array should be of length m+1.

As far as I can understand, ptr should be of length m+1 in the case of CSR, and _n_+1 in the case of CSC.