TI-BASIC:Timesrow

Command Summary

Multiplies a row by a scalar.

Command Syntax

• row(factor,matrix,row)

Menu Location

Press:

1. MATRX (on a TI-83) or 2nd MATRX (TI-83+ or higher) to access the matrix menu.
2. RIGHT to access the MATH submenu.
3. ALPHA E to select *row(, or use arrows and ENTER.

Calculator Compatibility

TI-83/84/+/SE

Token Size

1 byte

The *row( command multiplies a row of a matrix by a scalar factor and returns the result. It is an elementary row operation used in Gaussian Elimination.

[[1,2][3,4]]
	[[1 2]
	 [3 4]]
*row(10,Ans,1)
	[[10 20]
	 [3  4 ]]

Advanced Uses

You can multiply columns instead of rows with the aid of the ^T (Transpose) command.

Error Conditions

• ERR:INVALID DIM is thrown if the row argument isn't a valid row (is larger than the size of the matrix, or otherwise bad)

Related Commands

• |-
• |-
• *row+(