HP 48gII Uživatelský manuál stáhnout pdf (Strana 114)

Page 8-5

(3) Move the cursor up two positions by using

——

. Then press

@ROW

The second row will disappear.

(4) Press @ROW@. A row of three zeroes appears in the second row.

(5) Press @COL@. The first column will disappear.

(6) Press @COL@. A column of two zeroes appears in the first column.

(7) Press @GOTO@ 3@@OK@@ 3@@OK@@ @@OK@@ to move to position (3,3).

(8) Press

@→STK@@

. This will place the contents of cell (3,3) on the stack,

although you will not be able to see it yet. Press

to return to normal

display. The number 9, element (3,3), and the full matrix entered will be

available in the stack.

Simple operations with vectors

To illustrate operations with vectors we will use the vectors u2, u3, v2, and v3,

stored in an earlier exercise. Also, store vector A=[-1,-2,-3,-4,-5] to be used in

the following exercises. [Note: not all lines will be visible when done with the

exercises in the following figures.]

Changing sign

To change the sign of a vector use the key \, e.g.,

Addition, subtraction

Addition and subtraction of vectors require that the two vector operands have

the same length:

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 174 175

Žádné komentáře

HP 48gII Uživatelský manuál Strana 114