ncol_elements S3 method for blockmatrix objectncol_elements S3 method for blockmatrix
  object
ncol_elements(M, zero_element = "0", ...)
  "ncol_elements" (M, zero_element = "0", ...)
  "ncol_elements" (M, zero_element = "0", ...)blockmatrix object"0"M. It is NA if the elements has different
  number of columns.