# HP 48gII User Manual Page 734

Graphing calculator.

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«
{PPAR EQ} PURGE
'√r' STEQ
'r' INDEP
's' DEPND
FUNCTION
{ (0.,0.) {.4 .2}
"Rs" "Sr" } AXES
–1. 5. XRNG
–1. 5. YRNG
ERASE DRAW DRAX LABEL
PICTURE "
Store the program in variable PLOT1. To run it, press J, if needed, then
press @PLOT1.
Example 2 – A parametric plot. Enter the following program:
«
RAD {PPAR EQ} PURGE
'SIN(t)+i*SIN(2*t)' STEQ
{ t 0. 6.29} INDEP
'Y' DEPND
PARAMETRIC
{ (0.,0.) {.5 .5} "X(t)"
"Y(t)" } AXES
–2.2 2.2 XRNG
–1.1 1.1 YRNG
ERASE DRAW DRAX LABEL
PICTURE
"
Store the program in variable PLOT2. To run it, press J, if needed, then
press @PLOT2.
Start program
Purge current PPAR and EQ
Store '√r' into EQ
Set independent variable to 'r'
Set dependent variable to 's'
Select FUNCTION as the plot type
Set axes information
Set x range
Set y range
Erase & draw plot, axes, and labels
Recall graphics screen to stack
Start program
Change to radians, purge vars.
Store 'X(t)+iY(t)' into EQ
Set indep. variable to 'r', with range
Set dependent variable to 'Y'
Select PARAMETRIC as the plot type
Set axes information
Set x range
Set y range
Erase & draw plot, axes, and labels
Recall graphics screen to stack
End program
Page 22-18

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