717 	def __init__ (self, numCols, numRows, scalars):  argument
718 		assert len(scalars) == numRows*numCols
719 		self.numCols	= numCols
724 	def fromScalar (numCols, numRows, scalar):  argument
726 		for col in range(0, numCols):
729 		return Mat(numCols, numRows, scalars)
732 	def identity (numCols, numRows):  argument
733 		return Mat.fromScalar(numCols, numRows, 1.0)
736 		assert 0 <= colNdx and colNdx < self.numCols
741 		assert 0 <= colNdx and colNdx < self.numCols
745 	def toMatrix (self, numCols, numRows):  argument
746 		res = Mat.identity(numCols, numRows)
747 		for col in range(0, min(self.numCols, numCols)):
763 		if self.numRows == self.numCols:
766 			return "mat%dx%d" % (self.numCols, self.numRows)
772 		return isinstance(other, Mat) and self.numRows == other.numRows and self.numCols == other.numCols
780 …return Mat(self.numRows, self.numCols, [self.scalars(i) * val.scalars(i) for i in range(self.numRo…