HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 734)

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« Start program

{PPAR EQ} PURGE Purge current PPAR and EQ

‘√r’ STEQ Store ‘√r’ into EQ

‘r’ INDEP Set independent variable to ‘r’

‘s’ DEPND Set dependent variable to ‘s’

FUNCTION Select FUNCTION as the plot type

{ (0.,0.) {.4 .2}

“Rs” “Sr” } AXES Set axes information

–1. 5. XRNG Set x range

–1. 5. YRNG Set y range

ERASE DRAW DRAX LABEL Erase & draw plot, axes, and labels

PICTURE » Recall graphics screen to stack

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:

« Start program

RAD {PPAR EQ} PURGE Change to radians, purge vars.

‘SIN(t)+i*SIN(2*t)’ STEQ Store ‘X(t)+iY(t)’ into EQ

{ t 0. 6.29} INDEP Set indep. variable to ‘r’, with range

‘Y’ DEPND Set dependent variable to ‘Y’

PARAMETRIC Select PARAMETRIC as the plot type

{ (0.,0.) {.5 .5} “X(t)”

“Y(t)” } AXES Set axes information

–2.2 2.2 XRNG Set x range

–1.1 1.1 YRNG Set y range

ERASE DRAW DRAX LABEL Erase & draw plot, axes, and labels

PICTURE Recall graphics screen to stack

» End program

Store the program in variable PLOT2. To run it, press J, if needed, then

press @PLOT2.

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