User manual - Chapter 3 Differential Equations

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3-2-6

Differential Equations of the First Order

Example To graph the solution of the Bernoulli equation dy/dx – 2y = –y

x0 = 0, y0 = 1, –5

< x

< 5, h = 0.1.

Use the following V-Window settings.

Xmin = –6.3, Xmax = 6.3, Xscale = 1

Ymin = –3.1, Ymax = 3.1, Yscale = 1 (initial defaults)

Procedure

1 m DIFF EQ

2 1(1st)d(Bern)

3 -cw

-bw

4aw

5 5(SET)b(Param)

6 -fw

7 a.bwi

8 5(SET)c(Output)4(INIT)i

9 !K(V-Window)1(INIT)i

0 6(CALC)

Result Screen

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