HP 48gII Graphing Calculator Manual de usuario descargar pdf (Pagina 44)

Page 1-15

Notice that the display shows several levels of output labeled, from bottom to

top, as 1, 2, 3, etc. This is referred to as the stack of the calculator. The

different levels are referred to as the stack levels, i.e., stack level 1, stack level

2, etc.

Basically, what RPN means is that, instead of writing an operation such as 3

+ 2, in the calculator by using 3+2`, we write first the operands,

in the proper order, and then the operator, i.e., 3`2`+. As

you enter the operands, they occupy different stack levels. Entering

3`puts the number 3 in stack level 1. Next, entering 2`pushes

the 3 upwards to occupy stack level 2. Finally, by pressing +, we are

telling the calculator to apply the operator, or program, + to the objects

occupying levels 1 and 2. The result, 5, is then placed in level 1. A simpler

way to calculate this operation is by using: 3`2+.

Let's try some other simple operations before trying the more complicated

expression used earlier for the algebraic operating mode:

123/32 123`32/

4

2

4`2Q

3

√27 27`3@»

Notice the position of the y and the x in the last two operations. The base in

the exponential operation is y (stack level 2) while the exponent is x (stack

level 1) before the key Q is pressed. Similarly, in the cubic root operation,

y (stack level 2) is the quantity under the root sign, and x (stack level 1) is the

root.

Try the following exercise involving 3 factors: (5 + 3) × 2

5`3+ Calculates (5 +3) first.

2X Completes the calculation.

Let's try now the expression proposed earlier:

5.2

3

23

33

1

53

e+

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Philips 017266693 Datasheet (2 pages)

Brand: Philips | Category: Outdoor lighting | Size: 0.49 MB |

English

Table of contents

Saving energy with ambience

1

Specifications

2

Highlights

2

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