TI-BASIC:Rowswap
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Command Summary
Swaps two rows of a matrix.
Command Syntax
rowSwap(matrix,row1,row2)
Menu Location
Press:
- MATRX (on a TI-83) or 2nd MATRX (TI-83+ or higher) to access the matrix menu.
- RIGHT to access the MATH submenu.
- ALPHA C to select rowSwap(, or use arrows and ENTER.
TI-83/84/+/SE
1 byte
The rowSwap( command swaps two rows of a matrix and returns the result. It is an elementary row operation used in Gaussian Elimination.
[[1,2][3,4]] [[1 2] [3 4]] rowSwap(Ans,1,2) [[3 4] [1 2]]
Advanced Uses
You can swap columns instead of rows with the aid of the ^^T^^ (Transpose) command.
Error Conditions
- ERR:INVALID DIM is thrown if one of the row arguments isn't a valid row (larger than the matrix size, or otherwise bad)
