Conway's Game of Life Problem

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Summary:

The code is not working.

Conway's Game of Life Problem

dagav 04 May 2011 23:19

I used this code

:Plot1(Scatter,X,Y,.
:∟X→P:∟Y→Q
:Repeat getKey or S<2
:∟P→X:∟Q→Y
:DispGraph
:DelVar ∟PDelVar∟Q1→S
:For(X,min(∟X)-1,1+max(∟X
:For(Y,min(∟Y)-1,1+max(∟Y
:sum(1=max(abs(∟X-X),abs(∟Y-Y
:3=Ans or 3=Ans-max(∟X=X and ∟Y=Y
:If Ans:Then
:X→∟P(S
:Y→∟Q(S
:S+1→S
:End:End
:End:End
:PlotsOff
:ClrHome:"

(Which was written by DarkerLine) on my ti83+ calculator. I wasn't sure how to make LX LY LP and LQ, so I replaced them with L1 L2 L3 and L4, respectively. This provided an err:invalid dim message, so I changed the window dimensions to 94 by 62, as the main thread calls for (http://tibasicdev.wikidot.com/game-of-life). Now I get an err:window range, and when I do goto it brings me to the displaygraph function. any idea what is going wrong?

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"Give a man a fish and he will eat for a day; teach a man to fish and he will eat for a lifetime; give a man religion and he will die praying for a fish." - Anonymous

Re: Conway's Game of Life Problem

isabelng 05 May 2011 16:09

this usually occurs when your Xmax is smaller than your Xmin or your Ymax is smaller than your Ymin…you can thus use the ZoomFit function to let your graph display the correct settings and encompass all the plotted points… likewise, since you are using a scatter plot (STATS)…you can just use the ZoomSTAT function

ANOTHER REASON is that your program's output is a constant either in the X or Y direction, the GC thus reads it such that it automatically adjust the Ymax / Ymin / Xmin / Xmax value to that particular CONSTANT value…such that Ymax=Ymin…the range is thus undefined…theoretically meaning that there is no graph at all

An interesting way of solving this is to plot an anomalous point…sth like a point that is close to your CONSTANT output (MAKE SURE THE DISPLAY OF THE POINT DOES NOT AFFECT THE INTENDED DISPLAY)

Re: Conway's Game of Life Problem

dagav 05 May 2011 22:02

When I did zoom stat for the first time, it worked. Then I ran the program, and got a "ERR:INVALID DIM". The window dimensions are now:

Xmin=-47
Xmax=47
Xscl=10
Ymin=-6
Ymax=2203
Yscl=10
Xres=1

Now doing either zoomstat or zoomfit get the invalid dim error. Turning off plot one fixes the problem, until I run the program again. When I hit goto, it brings me to the display graph line in the code.

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"Give a man a fish and he will eat for a day; teach a man to fish and he will eat for a lifetime; give a man religion and he will die praying for a fish." - Anonymous

Re: Conway's Game of Life Problem

isabelng 06 May 2011 16:12

Quote previous post
"program's output is a constant either in the X or Y direction"
"the range is thus undefined…theoretically meaning that there is no graph at all "

U thus CAN'T have Xmin=Xmax cos theoretically when u tink bout it, there is no graph at all, it is only a constant straight line with NO HEIGHT / THICKNESS (Y coordinate)…u might thus want to make Xmax=47.001 Xmin=47 etc.