Thanks for that!
I wonder why Wolfram have neglected to provide this tool - which seems like an obvious complement to their online integrator?
Perhaps there's some stigma against using a tool to do something that a competant physicist should be able to do in their head?
I'm not a competant...
Sry, being slow on the uptake I didn't spot the requirement for multiple guess problems.
I'm afraid that's not a common format for physics questions post GCSE, for a number of reasons.
I can recommend sources of challenging problems, but let's see if anyone else can be more directly helpful !
Give us a clue; Roughly what age & ability are your study group?
I can recommend Lewis Epstein's 'Thinking physics' for just about any age group.
rgds,
dave
I'v been looking into circuit simulation this week. I will post more detail if anyone is still interested, but for now here are links to two pages listing ECAD, PCB layout & circuit simulation software.
http://homepages.which.net/~paul.hills/Circuits/Spice/Spice.html...