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is_matrix |
Function (ROM Call 0x3B7) |
Checks whether an expression is a matrix.
is_matrix returns TRUE if the expression pointed to by
ptr is a matrix (i.e. a list which consists of equally sized lists),
otherwise it returns FALSE.
Uses: next_expression_index, remaining_element_count
Used by: is_square_matrix, push_coldim, push_colnorm, push_determinant, push_mat_to_list, push_matnorm, push_median, push_mrow, push_mrowadd, push_red_row_ech, push_row_echelon, push_rowadd, push_rowdim, push_rownorm, push_rowswap, push_sequence, push_simult, push_submat, push_unitv, ROM Call 0x484, ROM Call 0x485, ROM Call 0x4D2