Texas Instruments TI-84 PLUS - Graphing Calculator User Manual

Chapter 10: Matrices 156
Note: dim(matrix)"Ln:Ln(1) returns the number of rows. dim(matrix)"Ln:Ln(2) returns the number of
columns.
Creating a Matrix with dim(
Use
dim( with ¿ to create a new matrixname of dimensions rows × columns with 0 as each element.
{rows,columns}"dim(matrixname)
Redimensioning a Matrix with dim(
Use
dim( with ¿ to redimension an existing matrixname to dimensions rows × columns. The
elements in the old
matrixname that are within the new dimensions are not changed. Additional
created elements are zeros. Matrix elements that are outside the new dimensions are deleted.
{rows,columns}"dim(matrixname)
Fill(
Fill( stores value to every element in matrixname.
Fill(value,matrixname)
identity(
identity( returns the identity matrix of dimension rows × dimension columns.
identity(dimension)

Texas Instruments TI-84 PLUS - Graphing Calculator Specifications

General

Type	Graphing Calculator
Display Type	LCD
Screen Resolution	96 x 64 pixels
Processor	Zilog Z80
Memory	24 KB RAM, 480 KB Flash ROM
Power Source	4 AAA batteries (with backup lithium battery)
Connectivity	I/O port
Weight	7.4 oz (210 g)
Software	TI-OS (Texas Instruments Operating System)