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           Title: Circle
          Author: Mats Forsén
      Written by: Mats Forsén

     Description: Graphs a circle and shows the Area and Circumference.

         Remarks: Version 0.9 for fx7700-GE, Graphs the circle
                  with gaps.

            Size: XX Bytes
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Command translation:

->              Single arrow (located on the keyboard)
=>              Double arrow (press: [shift] [prgm] [f1] [f1])
_               Display, -Disp- (press: [shift] [prgm] [f4])
<=              Less or equal (A <= B)
>=              Greater or equal (A >= B)
<>              Not equal (A <> B)
^               Raised to the power of
/               Division or fraction (explain which with a comment)
2rt()           Root (2rt(7) is the square root of 7)
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Refer to the command standard used in R20_CASIO and set by Magnus
Werner on SilverSTone BBS (2:201/345@fidonet.org).

Everything after a ; is a comment and should not be in the code.
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Program:

"CIRCLE"
" "
"Radius"?->R
Range -((R*4.7/3.1)+4.7),(R*4.7/3.1)+4.7,-(R+3.1),R+3.1,1,0,2pi,pi/36
                    ;Scales the Range so the circle fits
Graph Y=2rt(R^2-X^2)
Graph Y=-(R^2-X^2)^.5_
"CIRC.":pi*2R_
"AREA":pi*R^2_

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If you need help or information concerning this file, please contact 
Mats Forsén at one of the following adresses.

E-Mail :  t95forsm@ava.taby.se
   WWW :  http://elev.ava.taby.se/~t95forsm/programming/
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