HP 48gII Graphing Calculator Uživatelský manuál stáhnout pdf (Strana 544)

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Repeat for t = 1.25, 1.50, 1.75, 2.00. Press @@OK@@ after viewing the last result

in @EDIT. To return to normal calculator display, press $ or L@@OK@@. The

different solutions will be shown in the stack, with the latest result in level 1.

The final results look as follows:

t x x' t x x'

0.00 0.000 6.000 1.25 -0.354 1.281

0.25 0.968 1.368 1.50 0.141 1.362

0.50 0.748 -2.616 1.75 0.227 0.268

0.75 -0.015 -2.859 2.00 0.167 -0.627

1.00 -0.469 -0.607

Graphical solution for a second-order ODE

Start by activating the differential equation numerical solver, ‚ Ï

˜ @@@OK@@@ . The SOLVE screen should look like this:

Notice that the initial condition for the solution (Soln: w Init:[0., …) includes

the vector [0, 6]. Press L @@OK@@.

Next, press „ô (simultaneously, if in RPN mode) to enter the PLOT

environment. Highlight the field in front of TYPE, using the —˜keys.

Then, press @CHOOS, and highlight Diff Eq, using the —˜keys. Press

@@OK@@. Modify the rest of the PLOT SETUP screen to look like this:

1 2 ... 539 540 541 542 543 544 545 546 547 548 549 ... 863 864

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HP 48gII Graphing Calculator Uživatelský manuál Strana 544

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