\start83\
\comment=Program file dated 10/07/97, 14:24
\name=REV2
\file=J:\REV2.AS3
prgmFACSU
Disp "ENTER FIRST"
Disp "FUNCTION Y\1\"
Disp "( IN QUOTES )"
Disp ""
Input "Y\1\=",Y\1\
ClrHome
Disp "ENTER SECOND"
Disp "FUNCTION Y\2\"
Disp "( IN QUOTES )"
Disp ""
Input "Y\2\=",Y\2\
Lbl 1
ClrDraw
ClrHome
Disp "LOWER LIMIT"
Disp "OF X"
Prompt L
Disp "UPPER LIMIT"
Disp "OF X"
Prompt U
Disp "HOW MANY"
Disp "INTERVALS ?"
Prompt N
0\->\S
(U-L)/N\->\W

L\->\Xmin
U\->\Xmax
L+(W/2)\->\T
ClrHome
Disp "SCALING GRAPH"
Disp "PLEASE WAIT"
fMin(Y\1\,X,L,U)\->\A
fMax(Y\1\,X,L,U)\->\B
fMin(Y\2\,X,L,U)\->\C
fMax(Y\2\,X,L,U)\->\D
Y\1\(A)\->\E
Y\1\(B)\->\F
Y\2\(C)\->\G
Y\2\(D)\->\H
If abs((F)\>=\abs((H)
Then
F\->\Ymax
Else
H\->\Ymax
End
If abs((E)\<=\abs((G)
Then
E\->\Ymin
Else
G\->\Ymin
End

If abs((Ymin)>abs((Ymax)
Then
abs((Ymin)\->\Ymax
Else
\(-)\(Ymax)\->\Ymin
End
DispGraph
For(I,1,N)
Y\1\(T)\->\P
Y\2\(T)\->\Q
S+\pi\*abs((P\^2\-Q\^2\)*W\->\S
Line(T-W/2,Q,T-W/2,P)
Line(T-W/2,P,T+W/2,P)
Line(T+W/2,P,T+W/2,Q)
Line(T+W/2,Q,T-W/2,Q)
Line(T-W/2,\(-)\Q,T-W/2,\(-)\P)
Line(T-W/2,\(-)\P,T+W/2,\(-)\P)
Line(T+W/2,\(-)\P,T+W/2,\(-)\Q)
Line(T+W/2,\(-)\Q,T-W/2,\(-)\Q)

T+W\->\T
End
Pause 
ClrHome
Disp "VOL OF REV ="
Disp S
Disp ""
Disp "RUN AGAIN ?"
Disp "(1) YES"
Disp "(2) NO"
Input R
If R=1
Goto 1
ClrHome

\stop83\