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Solved!
Converting from Degrees <> Radians on HPPrime
05102017 12:56 PM
Looks like I'm not the first to ask this question:
I spotted the article:
http://h30434.www3.hp.com/t5/Calculators/hpprimedegtoradradtodeg/mp/3315481#M4826
Problem is, the CONVERT() doesn't seem to work when you are in RPN mode. If I switch to textbook mode it works, if I try in RPN, I get a syntax error. I suspect other catalog entries do not work in RPN mode but haven't tested.
I was pretty surprised to find that the HPPrime doesn't have a key/menu selection to convert from degrees to radians and visa versa.
Solved! Go to Solution.
05102017 01:30 PM
Hi!, @garbel:
1) Configure your HP PRIME, for use with RPN.
This example, is for converting minutes, to hours ...
2: 1_h
1: 30_min +
You obtein ...
1: 1.5_h
Have a nice day !.
@Maké (Technical Advisor Premium  HP Program Top Contributor).
Provost in HP Spanish Public Forum ... https://h30467.www3.hp.com/
05102017 02:11 PM  edited 05102017 02:59 PM
Hi!, @garbel:
The example, is extracted, from ... http://www.hpmuseum.org/cgisys/cgiwrap/hpmuseum/archv021.cgi?read=251800
In RPN, you can use CONVERT.
1: 10_deg
15_rad
Type CONVERT or convert and ENTER.
Have a nice day !.
@Maké (Technical Advisor Premium  HP Program Top Contributor).
Provost in HP Spanish Public Forum ... https://h30467.www3.hp.com/
05102017 02:17 PM
okay, thanks.
I still don't see how it applies to degrees and radians but I'll experiment with it when I get home tonight.
I seem to be using my HP50G a lot more lately. Prime is nice but the more I use it, the less I like it. I'll never use anything other than HP and RPN but feels good to **bleep** now and then :c)
(In fact, I bought another 50Gs off of ebay as backup a few weeks ago)
Thanks Again,
05102017 02:25 PM
Deg<=>Rad conversions are normally featured on scientific calcs, but graphings units don't normally have them as a direct button.
It works fine for me in RPN mode though for me here. I put 90_deg on the stack, followed by 1_rad, and calling CONVERT then converts. How are you trying to use "CONVERT"?
Although I work for the HP calculator group as a head developer of the HP Prime, the views and opinions I post here are my own.
05102017 07:22 PM  edited 05102017 07:29 PM
Great, that worked!
I was following the instructions in the article:
http://h30434.www3.hp.com/t5/Calculators/hpprimedegtoradradtodeg/mp/3315481#M4826
So I was doing CONVERT(100_deg, 1_rad) ENTER
Make sense now ... on the stack first like RPN in general.
Thanks for the reply!
(Plus the Help on Convert wasn't helpful in RPN mode)
05112017 12:01 AM  edited 05112017 12:02 AM
Just like the 48 series, you can embed algebraics by doing ' ' (shiftparenthesis)if you want an equations/expression/command in algebraic form.
Be aware that if a command can take variable # of arguments, RPN on prime requires you to specify the count if you are using more then the default lowest number of arguments.
For example, ROUND has an optional 2nd argument. To take 2 arguements from the stack, you'd do ROUND(2) ENTER to take both. Else ROUND will just take the 1 argument.
Although I work for the HP calculator group as a head developer of the HP Prime, the views and opinions I post here are my own.
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