[comp.sys.amiga] Simulation of analog computer

hubey@pilot.njin.net (Hubey) (01/16/90)

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I have checked the PD lists but I am not yet sure that what I am 
looking for (and need) does not exist.  Is anyone aware of
an 'analog computer' emulator for the AMiga ??

I have a set of linear differential equations that I want to fiddle with
and I would like to get an idea of their behavior graphically .
(It's the graphical interface that really interests me. I do have 
the program that implements the for the Runge-Kutta algorithms.)

If no such thing exists, is anyone aware of an actual (and cheap !)
analog computer that I might be able to buy via mail order or 
any other way?  Any and all help will be appreciated.

I might even be willing to pay some hundred(s) of dollars if anyone
is interested in cranking out something along these lines. Really!
I really do need it!


You can post info here or send me email at:

hubey@pilot.njin.net  or hubey@apollo.montclair.edu


Thanks to any one who can help me.

mark
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 hubey@pilot.njin.net  |  hubey@apollo.montclair.edu | ...!rutgers!njin!hubey
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cmcmanis@stpeter.Sun.COM (Chuck McManis) (01/18/90)

In article <Jan.15.19.25.08.1990.8360@pilot.njin.net> (Hubey) writes:
>I have a set of linear differential equations that I want to fiddle with
>and I would like to get an idea of their behavior graphically .
>(It's the graphical interface that really interests me. I do have 
>the program that implements the for the Runge-Kutta algorithms.)

I don't know of an analog computer simulator (it's an interesting
concept though) but I do know the "Doug's Math Aquarium" will plot
differential equations. It'sn't (a neologisim for "it is not") PD though. 

>If no such thing exists, is anyone aware of an actual (and cheap !)
>analog computer that I might be able to buy via mail order or 
>any other way?  Any and all help will be appreciated.

Building analog computers is easy with op-amps. Check out any cookbook
of opamp circuits, buy a bunch of 741's or something and wire them up.


--Chuck McManis
uucp: {anywhere}!sun!cmcmanis   BIX: cmcmanis  ARPAnet: cmcmanis@Eng.Sun.COM
These opinions are my own and no one elses, but you knew that didn't you.
"If it didn't have bones in it, it wouldn't be crunchy now would it?!"