\START\
\COMMENT=Program file dated 06/28/93, 16:37
\NAME=REV1
\FILE=REV1.85P
Func:FnOff 
ClLCD
Radian
Disp "ENTER FUNCTION"
InpST "Y=",Y
\St>Eq\(Y,y1)
Lbl AA
Disp "LOWER LIMIT OF X"
Prompt XL
Disp "UPPER LIMIT OF X"
Prompt XU
Disp "# INTERVALS"
Prompt N
0\->\SM
(XU-XL)/N\->\W
XL\->\xMin
XU\->\xMax
XL+(W/2)\->\X
ClLCD
Disp "SCALING GRAPH"
Disp "PLEASE WAIT"
ZFit
If abs (yMin)>abs (yMax)
Then
abs (yMin)\->\yMax
Else
\(-)\(yMax)\->\yMin
End
DispG
For(I,1,N)
evalF(y1,x,X)\->\YP
SM+(\pi\YP\^2\*W)\->\SM
Line(X-W/2,\(-)\YP,X-W/2,YP)
Line(X-W/2,YP,X+W/2,YP)
Line(X+W/2,YP,X+W/2,\(-)\YP)
Line(X+W/2,\(-)\YP,X-W/2,\(-)\YP)
X+W\->\X
End
Pause 
ClLCD
Disp "VOLUME OF REV ="
Disp SM
Disp " "
Disp "RUN AGAIN ?"
Disp "YES  = 1"
Disp "NO   = 2"
Input R
If R==1
Goto AA
\STOP\