HP Prime Graphing NW280AAABA manual To display a matrix

	entry line or copied it from History to the entry line, tap
				, enter a name for it and press E. The
	variable names reserved for vectors and matrices are M0
	through M9. You can always use a variable name you
	devise to store a vector or matrix. The new variable will
	appear in the Vars menu under					.
	The screen at the right
	shows the matrix
		2.5 729
			16	2
	being stored in M5. Note
	that you can enter an
	expression (like 5/2) for
	an element of the matrix, and it will be evaluated upon
	entry
	The figure to the right
	shows the vector [1 2 3]
	being stored in the user
	variable M25. You will
	be prompted to confirm
	that you want to create
	your own variable. Tap
				to proceed or
				to cancel.
	Once you tap				,
	your new matrix will be
	stored under the name
	M25. This variable will
	show up in the User
	section of the Vars menu.
	You will also see your
	new matrix in the Matrix
	Catalog.
To display a matrix	In Home view, enter the name of the vector or matrix and
	press E. If the vector or matrix is empty, zero is
	returned inside double square brackets.
To display one	In Home view, enter matrixname(row,column). For
element	example, if M2 is [[3,4],[5,6]], then

M2(1,2)Ereturns 4.

468 Matrices