# HP 50g User Manual Page 402

Graphing calculator.

We will try to plot the function f( ) = 2(1-sin( )), as follows:
First, make sure that your calculator's angle measure is set to radians.
Press „ô, simultaneously if in RPN mode, to access to the PLOT
SETUP window.
Change
Press ˜ and type:
³2* „ Ü1-S~‚t @@@OK@@@.
The cursor is now in the
change the independent variable to .
Press „ò, simultaneously if in RPN mode, to access the PLOT
window (in this case it will be called PLOT –POLAR window).
Change the H-VIEW range to –8 to 8, by using
8\@@@OK@@@8@@@OK@@@, and the V-VIEW range to -6 to 2 by using
6\@@@OK@@@2@@@OK@@@.
Note: the H-VIEW and V-VIEW determine the scales of the display
window only, and their ranges are not related to the range of values of
the independent variable in this case.
Change the
using: 0@@@OK@@@
Press @ERASE @DRAW to plot the function in polar coordinates. The result is a
curve shaped like a hearth. This curve is known as a cardiod (
Greek for heart).
Press @EDIT L @LABEL @MENU to see the graph with labels. Press L to
recover the menu. Press L @) P ICT to recover the original graphics menu.
Press @TRACE @x,y@ to trace the curve. The data shown at the bottom of the
display is the angle
(default name of dependent variable).
, by pressing @CHOOS ˜ @@@OK@@@.
to
TYPE
Polar
value to 0, and the High value to 6.28 ( 2 ), by
Indep Low
6.28@@@OK@@@.
and the radius r, although the latter is labeled Y
field. Press ³~‚t @@@OK@@@ to
Indep
,
cardios
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