[williwaw]

If you have time.....why/where is the infinite loop(y)???

 //Sets the window size
 0->Xmin
 10->Xmax
 0->Xscl
 0->Ymin
 25->Ymax
 0->Yscl
 
 //Formats window
 RectGC
 CoordOff
 GridOff
 AxesOff
 LabelOff
 
 //Turns on function
 Func
 FnOn
 
 //Draws background
 Line(0,0,0,.5)
 Line(0,.5,.5,.5)
 Line(.25,.5,.25,.9)
 Line(.5,.5,.5,0)
 Line(.5,0,1,0)
 Line(1,0,1,0)
 Line(1,0,2,2)
 Line(2,2,2.5,1.5)
 Line(2.5,1.5,4,5)
 Line(4,5,5,2.5)
 Line(5,2.5,5.5,3)
 Line(5.5,3,6.5,0)
 Line(6.5,0,10,0)
 
//Draws target and places 
//target randomly in window
Lbl A
 0->B
 randInt(7,9)->C
 Line(C,.2,C+.6,.2)
 Line(C,.4,C+.4,.4)
 Line(C,.5,C+.3,.5)
 For(A,1,500)
End

//Parabolic function
//of the missle 
Lbl B
 B+1->B
 Input "R=  ",R
 (-X^2+RX)->Y
 DispGraph
 Pause
 
 For(T,0,10,.25)
 Y-Z
 Pt-On(X,Y)
 If Z<0 or Z=0
End

//Clears input
//and stops program
ClrHome
ClrDraw
Stop

Thanks for looking!

Cheers,
Williwaw

[CalcProgrammer1]

Not sure, but For() commands need to be paired with End commands. You have:

For(A,1,500)

with an End right next to it. This will create a delay. Label (Lbl) commands do NOT need an End command, as they are just markers to go to a particular line. Lbl commands are only useful with Goto commands, but I don't see any Goto commands in your program.

Other than that, it's a bunch of code. TI-83 code doesn't run on Linux, TI-83's don't run Linux, and I have NO clue why you put this in the Linux forum. Keep your posts on topic.

[williwaw]

Other than that, it's a bunch of code. TI-83 code doesn't run on Linux, TI-83's don't run Linux, and I have NO clue why you put this in the Linux forum. Keep your posts on topic.

Thanx for the help...

I only posted here because I saw ur name and not a calc topic...sry