Recent content by Calc Curious

Here's an update to this thread that might be of interest to university students like myself who want to use RPN or RPL on an HP calculator, and be able to solve for an unknown variable with ease, like our Ti and Casio equipped peers. I actually ordered an HP 50G, and it just arrived, so I was...

Thanks for your response, I'll try to give some idea of the equations I'd be solving. However, keep in mind that even though these equations might seem fairly straightforward, under exam conditions I'd be looking to spend as little time on the algebra as I can. Here's a fairly simple one: z1...

To DuncamM: Ah yes, I am aware of that (I actually started a similar thread where I did happen to learn of that, in hindsight I probably should have kept on with the existing thread). The issue lies in converting what is sometimes a complex algebraic equation into the vector format...

Thanks for your concern, I will provide an update: I am now heavily considering the HP 50G for my next purchase (based on very positive reviews and RPN), all I need to confirm is: can that machine solve the problem I described in my first post: can you solve an equation with the unknown...

Hi and thanks for reading. I am looking for a calculator to use purely in exam or tutorial situations where I don't have access to a computer and need to solve algebra problems (usually hydraulics (mannings, specific energy equations solving for flow depth) or geotech related) where the...

Had to do my own research on this one, to my knowledge the only calculators on the market which will solve a polynomial for all its solutions (without guesswork) where its in an 'unrearranged form' if anyone reading is wondering, is the Ti Nspire and the Ti 89 (preferably titanium). To my...

I see, although there would still be some equation rearranging needing to take place for that to happen from the energy equations I'm dealing with. I've had a few practices and sometimes my algebra isn't foolproof and I'm still a bit concerned that in the exam there will be those with more up to...

Thanks for your quick response. I had a look into the polynomial solver and yes it does appear to solve these sorts of problems, but it appears I would need to rearrange the equation into a form that fits into the matrix writer for it to work, which would be a concern in an exam scenario where...

Dear all, I am currently completing a water engineering subject at university as part of my civil engineering studies. For this subject (and probably others in future), I occasionally need to solve for an unknown value in a quadratic or cubic function, where there are three possible solutions...