Matrix windows#

class sage.matrix.matrix_window.MatrixWindow#

Bases: object

add(A)#

add_prod(A, B)#

echelon_in_place()#: Calculate the echelon form of this matrix, returning the list of pivot columns

element_is_zero(i, j)#

get_unsafe(i, j)#

matrix()#: Returns the underlying matrix that this window is a view of.

matrix_window(row, col, n_rows, n_cols)#: Returns a matrix window relative to this window of the underlying matrix.

ncols()#

new_empty_window(nrows, ncols)#

new_matrix_window(matrix, row, col, n_rows, n_cols)#: This method is here only to provide a fast cdef way of constructing new matrix windows. The only implicit assumption is that self._matrix and matrix are over the same base ring (so share the zero).

nrows()#

set(src)#

set_to(A)#: Change self, making it equal A.

set_to_diff(A, B)#

set_to_prod(A, B)#

set_to_sum(A, B)#

set_to_zero()#

set_unsafe(i, j, x)#

subtract(A)#

subtract_prod(A, B)#

swap_rows(a, b)#

to_matrix()#: Returns an actual matrix object representing this view.