DPlot

Thank you David - excellent solution!

Mike Z

Question: consider a simple function that has the above condition:

y = 1/(x-2)

If I plot this from (say) x=0 to x=3, and then edit out the y value at x=2, the program still connects the last point on the left branch, with the first point on the right branch. How do I eliminate that erroneous ...

Look fwd to hearing from you...


Regards Mike Z

Thank you David for your prompt reply - that animation technique seems analogous to the age-old cartoon animation where the viewer flips thru a series of sequentially altered figures. Doable, but as you stated, probably laborious.

Mike Z

Question: I have used the PLAYBACK feature to draw a curve "real time" so to speak. But what I'd like to is to draw that same curve in a different way, using an actual animation.

Let me clarify: the curve that I want to draw is the CYCLOID, given by the parametric equations:

x = 4* (t - sin(t)) y ...

Hello again...first, my sincere thanks to David Hyde for his excellent assistance to me on this basic issue. So, I think we might summarize, and also test my understanding of how to get around this problem - ie, exection of z=f(x,y) stops upon detection of a negative square root.

Pls consider the ...

Thank you for the prompt and helpful reply David -

I still have some additional comments on this topic, but I need to do some work first, along the lines of your suggestion.

Regards Mike Z

Hello all - I am a new user of DPLOT, so my questions may seem basic...

Here goes....In a function such as z = sqrt (x, y) how can I eliminate the occurrence of a negative square root? For example, EXCEL would show #NUM! when such a value occurs in a data matrix. I can then reassign that value as ...