HP 48gII Graphing Calculator Bedienungsanleitung PDF herunterladen (Seite 325)

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Function RSWP

Function RSWP (Row SWaP) takes as arguments two indices, say, i and j,

(representing two distinct rows in a matrix), and a matrix, and produces a

new matrix with rows i and j swapped. The following example, in ALG

mode, shows an application of this function. We use the matrix stored in

variable A for the example. This matrix is listed first.

In RPN mode, function CSWP lets you swap the rows of a matrix listed in

stack level 3, whose indices are listed in stack levels 1 and 2. For example,

the following figure shows the RPN stack before and after applying function

CSWP to matrix A in order to swap rows 2 and 3:

As you can see, the columns that originally occupied positions 2 and 3 have

been swapped.

Function RCI

Function RCI stands for multiplying Row I by a Constant value and replace the

resulting row at the same location. The following example, written in ALG

mode, takes the matrix stored in A, and multiplies the constant value 5 into

row number 3, replacing the row with this product.

1 2 ... 320 321 322 323 324 325 326 327 328 329 330 ... 863 864

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