HP Prime Graphing NW280AAABA manual Matrices, Vectors

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Matrices
	You can create, edit, and operate on matrices and vectors
	in the Home view, CAS, or in programs. You can enter
	matrices directly in Home or CAS, or use the Matrix Editor.
Vectors	Vectors are one-dimensional arrays. They are composed
	of just one row. A vector is represented by single brackets;
	for example, [1 2 3]. A vector can be a real number
	vector, or a complex number vector such as
	[1+2*i 7+3*i].
Matrices	Matrices are two-dimensional arrays. They are composed
	of at least two rows and at least one column. Matrices
	may contain any combination of or real and complex
	numbers, such as:
		1 2 3	or		1 + 2i	.
					3 – 4i
		4 5 6			7

Matrix variables There are ten reserved matrix variables available, named M0 to M9; however, you can save a matrix in a variable name you define. You can then use them in calculations in Home or CAS views or in a program. You can retrieve matrix names from the Vars menu, or just type their names from the keyboard.

Matrices 463