Casio fx-9860G SD - Manual (Page 122)

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k Matrix 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}
u To 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.
c wdw
6(EXE) (orw)
2-8-5
Matrix Calculations