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The rowSwap( Command

Command Summary Command Syntax Calculator Compatibility Token Size
Swaps two rows of a matrix. rowSwap(matrix,row1,row2) TI-83/84/+/SE 1 byte

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 C to select rowSwap(, or use arrows and ENTER.

The rowSwap( Command

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)
Authors: KG