Hp 48g Graphing Calculator Manual de usuario descargar pdf (Pagina 327)

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101

Example 2: Plot the Slopefield of the differential equation,

y'{x) = Then superimpose the solution of the

equation with a particular initial condition.

Step 1: In the Slopefield PLOT form, enter the expression (' 'S/''2 ' )

into EQ°, and set the display ranges to [-3 3] (horizontal)

and [-1 5] (vertical). Set the independent step variable to 10

steps and the dependent step variable to 8 steps.

Step S: Plot the slopefield.

L I'*:! Fl i": E. D K Fl N

\ /

Ids

J /,

—^/ i i

. J.

Step 3: Turn on TRACE mode, press seven times and one

time to jump to a point in the lower left corner of the screen,

and press [ENTER] to put the coordinates onto the stack.

Step J,: Return to the PLOT form and change the plot type to Diff

Eq. Then highlight the solution variable’s IHITs field and

press fNXT1 CFiLC [DROP] so that the coordinate point (a

tagged list) is sitting on level 1 of the stack.

Step 5: Press [PRG] LIST OBJe- [drop] to remove the IHPUT

tag. Press uBJ-i- [DROP] to separate the two coordinates,

and then (4^fCONT j OK to store the y-coordinate as the

initial solution value.

Step 6: Highlight the independent variable’s IHIT” field and press

CflLC (DROP 1 UK to retrieve the x-coordinate as the

initial independent value. Then set the FINALS value to 3.

Step 1: Set the step-size to 0.1,

Plot Types 23-27

1 2 ... 322 323 324 325 326 327 328 329 330 331 332 ... 611 612

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Hp 48g Graphing Calculator Manual de usuario Pagina 327

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