Calculator User Manual

Differential Equation Graphing 430

To examine this harmonic oscillator in more detail, use a split screen to graph the

manner in which y and y' change with respect to time (t).

9. Press 3 and change the mode

settings on

Page 2 as shown. Then close

the

MODE dialog box, which redraws the

graph.

Note: To display different graphs in both

parts of a split screen, you must use the

-graph mode.

10. Press 2a to switch to the right side

of the split screen.

11. Use † to select

y1' and y2'.

The right side uses the same equations

as the left side. However, no equations

are selected initially in the right side.

12. Press:

— or —

@8Í Set

Fields = FLDOFF.

Important: Because Fields=DIRFLD cannot

plot a time axis, you must change the

Fields setting.

FLDOFF turns off all fields.

13. In the Y= Editor, press:

@2 ‰and make sure

Axes = TIME.