INNER CODE UNIT · Python
n_cols
webartifex/intro-to-python · 11_classes/sample_package/matrix.py:108
def n_cols(self):
"""Number of columns in a Matrix."""
return len(self._entries[0])
def __len__(self):
"""Number of entries in a Matrix."""
return self.n_rows * self.n_cols
def __getitem__(self, index):
"""Obtain an individual entry of a Matrix.
Args:
index (int / tuple of int's): if index is an integer,
the Matrix is viewed as a sequence in row-major order;
if index is a tuple of integers, the first one refers to
the row and the second one to the column of the entry
Returns: