Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!apple!sun-barr!newstop!sun!stpeter!cmcmanis From: cmcmanis@stpeter.Sun.COM (Chuck McManis) Newsgroups: comp.sys.amiga Subject: Re: Simulation of analog computer Keywords: analog computer, simulate, linear DE's Message-ID: <130390@sun.Eng.Sun.COM> Date: 17 Jan 90 20:47:27 GMT References: Sender: news@sun.Eng.Sun.COM Reply-To: cmcmanis@sun.UUCP (Chuck McManis) Organization: Sun Microsystems, Mountain View Lines: 22 In article (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?!"