def subMatrix(self, slice1, slice2):
return linear.Matrix([row[slice2] for row in self[slice1]])
def transpose(matrix):
return linear.Matrix(
[matrix.getCol(i) for i in range(matrix.colNum())])
def minor(self, row, col):
return linear.Matrix(
[[self[j][i] for i in range(self.colNum()) if i != col]
for j in range(self.rowNum()) if j != row])
def cofactor(matrix):
return linear.Matrix([[(-1)**(i + j) * matrix.minor(j, i).det()
for i in range(matrix.colNum())]
for j in range(matrix.rowNum())])
def elem(size):
return linear.Matrix([[1 if col == row else 0 for col in range(size)]
for row in range(size)])