HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 667)

100

101

Page 21-18

As you can see, y is used first, then we use b, g, and Q, in that order.

Therefore, for the purpose of this calculation we need to enter the variables in

the inverse order, i.e., (do not type the following):

Q ` g `b `y `

For the specific values under consideration we use:

23 ` 32.2 ` 3 `2 `

The program itself will contain only those keystrokes (or commands) that result

from removing the input values from the interactive calculation shown earlier,

i.e., removing Q, g, b, and y from (do not type the following):

y ` b *„º g *2* Q „º™/

and keeping only the operations shown below (do not type the following):

` *„ *2* „º™/

Note: When entering the program do not use the keystroke ™, instead use

the keystroke sequence: „°@)STACK @SWAP@.

Unlike the interactive use of the calculator performed earlier, we need to do

some swapping of stack levels 1 and 2 within the program. To write the

program, we use, therefore:

‚å Opens program symbols

* Multiply y with b

„º Square (b⋅y)

* Multiply (b⋅y)

times g

2* Enter a 2 and multiply it with g⋅ (b⋅y)

„°@)STACK @SWAP@ Swap Q with 2⋅g⋅ (b⋅y)

„º Square Q

„°@)STACK @SWAP@ Swap 2⋅g⋅ (b⋅y)

with Q

/ Divide Q

by 2⋅g⋅ (b⋅y)

` Enter the program

The resulting program looks like this:

* SQ * 2 * SWAP SQ SWAP / »

1 2 ... 662 663 664 665 666 667 668 669 670 671 672 ... 863 864

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