Casio FX-9860GII-L-IH User Guide - Page 122
Matrix Cell Operations, Row Calculations
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2-8-5 Matrix Calculations 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 : 12 Matrix A = 3 4 56 1(R-OP)1(Swap) Input the number of the rows you want to swap. cwdw 6(EXE) (orw) 20050401