Casio FX-9860G DEL, INS, ADD, DEL, INS, ADD, Rw+, Rw+, R-OP, EDIT, Swap, •{ROW}, •{COL}, Example, Matrix A, uTo swap two rows, u Row Calculations, kMatrix Cell Operations

2-8-5

Matrix Calculations

kMatrix Cell Operations

Use the following procedure to prepare a matrix for cell operations.

1.While the Matrix Editor is on the display, use f and c to highlight the name of the matrix you want to use.

You can jump to a specific matrix by inputting the letter that corresponds to the matrix name. Inputting ai(N), for example, jumps to Mat N.

Pressing !-(Ans) jumps to the Matrix current Memory.

2.Press w and the function menu with the following items appears.

•{R-OP} ... {row operation menu}

•{ROW}

•{DEL}/{INS}/{ADD} ... row {delete}/{insert}/{add}

•{COL}

•{DEL}/{INS}/{ADD} ... column {delete}/{insert}/{add}

•{EDIT} ... {cell editing screen}

All of the following examples use Matrix A.

u Row Calculations

The following menu appears whenever you press 1(R-OP) while a recalled matrix is on the display.

•{Swap} ... {row swap}

•{⋅Rw} ... {product of specified row and scalar}

•{⋅Rw+} ... {addition of one row and the product of a specified row with a scalar}

•{Rw+} ... {addition of specified row to another row}

uTo swap two rows

Example	To swap rows two and three of the following matrix :
			1	2
	Matrix A =	3		4
			5	6

1(R-OP)1(Swap)

Input the number of the rows you want to swap.

cwdw

6(EXE) (or w)

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