I am debating on what calculator to start getting familiar with to take the FS.?ÿ I have a TI-89, but it's not allowed.?ÿ I am looking at the Casio fx-991ex.?ÿ It seems to be simple and straight forward.?ÿ I've heard the HP 35s is supposed to be good, but I've never ran an RPN (didn't even know what that meant) calculator before. I did see it can be run in algebraic mode, but not sure if the programs will work that way.?ÿ Plus it seems expensive to buy a pre-programmed one.?ÿ Even buying the programs separate aren't cheap and I don't know anything about programming.?ÿ?ÿ
What I've seen with the Casio is the DMS button and switching between DMS and decimal degrees is very quick and easy.
I was in a similar situation when gearing up for the FS, and settled with a HP 35s.
If you do end up using a 35s, I'd recommend taking a look at the MnDOT programs for it- the programs provided cover everything you'd need, and it's pretty straight forward for a new user.
https://www.dot.state.mn.us/surveying/software/hp35s-programs.pdf
I would recommend the Casio for the FS exam (and beyond). My model is the fx-115ES PLUS, but I see that the fx-991EX is very similar.
The DMS button is great. Makes it so easy for angular entry and conversions. I use it all the time. I also like the display layout, trig buttons, decimal-to-fraction button, and there's a handy feature for unit conversions, too.
I'm a fan of RPN and the HP35s. Not that hard to learn RPN.?ÿ
RPN = Reverse Polish Notation
Everyone finds it odd at first and then you begin to wonder why you ever used anything else.
I used two Sharp 305s when I took the Survey exam
Any reliable calculator with a couple of memories and a polar to rectangular function will get the job done.
HP35s are the goto unit that you will use for the rest of your career if taken care of.
Sweat and the elements of working outdoors are very hard on them.
good luck
Common, my wife learned RPN and preferred to grab my HP 11 to do the check book over straight models.
Second, I don't think anyone needs a pre-programmed calculator for any exam. I used an HP 11 for FS and PLS and saw no need for anything else.
The new HP 35 is like the HP 11 in that you need to change D.MMSS to D.dec for functions by keystrokes and back, and that is what you need to learn smoothly to speed them up.
Paul in PA
Either will work fine its just important to get used to using them. Pick one and use it for calcs at work and studying for the test. Don't fall back on the ti-89. As for RPN, I hated it at first but now I love it and my 35 travels with me across the US on survey jobs. If you hand me a regular calculator it takes me longer than I like to admit to "retrain" my myself.
As for programming I don't think its necessary, the calculations are fairly simple and you'll find you have ample time provided you study. Though it's allowed and personal preference. If you go through the practice exam and can knock out the 50 or so questions in 2-2.5 hours you won't need a program. If you can't or are overly worried about it then get a programmed one.?ÿ
-Tim
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I used the TI-30xa with a TI-30xii for a backup. DMS entry is quick. It's memory is limited to three values but that was all I seemed to need.?ÿ?ÿ
Whatever you decide, I recommend bringing a backup calculator.
I use a phone app or the DC for calcs now.
@murphy I have two of those TI-30XA, one just to my left now and one on the drafting table behind me.
And they cost a whopping $7.32 each!
I used an hp48gx with a tds card, I guess those were the good 'ol days.
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Not all hope is lost... some state-specific exams allow you to use a 48. I know I'll be using mine during the California state-specific.
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Thanks for all of the info and suggestions. It sounds like I could probably get by with the Casio.
