Matrix windows¶
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class
sage.matrix.matrix_window.MatrixWindow¶ Bases:
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add(A)¶
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add_prod(A, B)¶
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echelon_in_place()¶ Calculate the echelon form of this matrix, returning the list of pivot columns
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element_is_zero(i, j)¶
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get_unsafe(i, j)¶
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matrix()¶ Returns the underlying matrix that this window is a view of.
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matrix_window(row, col, n_rows, n_cols)¶ Returns a matrix window relative to this window of the underlying matrix.
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ncols()¶
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new_empty_window(nrows, ncols)¶
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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).
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nrows()¶
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set(src)¶
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set_to(A)¶ Change self, making it equal A.
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set_to_diff(A, B)¶
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set_to_prod(A, B)¶
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set_to_sum(A, B)¶
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set_to_zero()¶
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set_unsafe(i, j, x)¶
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subtract(A)¶
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subtract_prod(A, B)¶
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swap_rows(a, b)¶
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to_matrix()¶ Returns an actual matrix object representing this view.
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