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# Decimal Hrs to Hrs, Min, Sec ?

04-08-2019 03:55 PM

Tim stated, "I'm not able to reproduce any problems with digit grouping and DMS/HMS on my Prime running the latest version. Could you please provide more details so I can see if there is still an issue to resolve here?

Thanks!

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## Decimal Hrs to Hrs, Min, Sec ?

04-08-2019 04:28 PM

Hi GRB43,

There is a DMS on the prime it is on the Alpha key E.

It will convert DMS or viceversa you have to key in the DMS

by pressing that key for each number then if decimal you can convert back by this same key.

Let me know if this helps.

101bil

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## Decimal Hrs to Hrs, Min, Sec ?

04-08-2019 05:00 PM

This is helpful in two ways. First, I learned about the key, and I see you can multiply 1°00'00" by a decimal hour and come up with Degrees, minutes, and seconds. for example 1°00'00" * 7.87 results in 7°52'12" I guess there is no way to get the "°" to display has an "H". Nevertheless it's better than nothing, and I can store the 1°00'00 in Alpha E as a constant.

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## Decimal Hrs to Hrs, Min, Sec ?

04-08-2019 06:44 PM

Hello again,

That key will change Degrees, minutes, and seconds. to decimals or viceversa.

and there are several other ways to do this, but this is the fastest way. I do not know what mode of entry you are using.

I use this in Textbook and RPN You can also used the Enter key with this,but you have to put thkey in this order when using

the DMS as 10 D 20 M 30 S this means you will press the shift then the E key each time you place the next number on the display. This calculator will do what you want just as a HP 35 convert these numbers. All with that one key.

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## Decimal Hrs to Hrs, Min, Sec ?

04-08-2019 09:15 PM

Hi GRB43,

I just now read what you wrote about the " H " as you know DMS and HMS are the same on the calculator.

Down thru the years these keys have changed just like the P to R and the R to P and the Hp 35 does not have them.

So there are ways around this including using programs for these keys but it does have the HMS keys. The HP 35s

is a good companion calculator for the Prime. It cost around 60 Dollars and it uses RPN programming.

Hope all this helps.

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## Decimal Hrs to Hrs, Min, Sec ?

04-09-2019 02:59 PM

Hi again GRB43,

I forgot to mention, that you can download a HP35s emulator to see if you like to buy one

just athought. also I use a macro RPN on my prime , two HP ppl programs will run this programming system.

Kept in touch,

Best regards,

101Bil

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## Decimal Hrs to Hrs, Min, Sec ?

04-11-2019 07:36 AM

Thanks for the help with the conversion issue. I decided to order a top of the line Casio. I already have a CASIO fx-CG50 and discovered its CAS system is stronger than the Prime's. I have several high end calculators and none are really to my full satisfaction. A lot depends on your purpose. One of the best all around calculators is the Casio 115ES Plus. It's just an under $20.00 scientific calculator, but for most things it is the best. I like the HP-Prime but Im somewhat shocked by some of its short commings. It's surprising it can be beat out by a Casio that is sold for about 1/2 the price of the Prime. But Iike I said, much depends on the particular use you put it to. I'm actually using mine to learn math. I think all these handhelds may be entirely supplanted by software calculators on smart phones.

I will continue to use the Prime and in all likelyhood will have more questions.

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## Decimal Hrs to Hrs, Min, Sec ?

04-11-2019 03:20 PM

Hi GRB43,

I promote, any Brand of calculators but my reason for using one is surveying.and I have used many brands

since the 1970's. I switched from TI's and casio's and Sharp, because they did not offer the programming back at that time

that i needed to use. Back then RPN was a new language then .HP introduced the HP48GX that was RPN but the programming was RPL.Now the Prime is HPPPL. but has 3 ways to enter.The HP35s is the last RPN scientific calculator made today and will run in algebraic mode ,if that is what you like.Programming is in both modes. Plus you can indirectly access memory with 801 storing registers with the 26 other registers. You can also write and store your own equations. Kept in mind this is not a Graphic calculator. But like I tell everyone use what you like and what you know how to use. But learning how to use RPN can take time if you have never used it. But it can change your math world. So download the HP35s emulator and the manual on your PC ,and try it out. Always here to help if I can.

Best Regards, HP for Life,

101Bil

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## Decimal Hrs to Hrs, Min, Sec ?

04-12-2019 05:04 PM

I thought RPN might have been an original language for calculators because I remember old ones years ago that had an odd way of entering calculations. I have an HP35/HP12 emulator on my Android phone. It's a good app. I think RPN is over rated and not needed as processors have become more powerful. RPN is a good system, you just have to get used to it. I'm using the HP-Prime at the moment to expand the Binomial Theorem, and it works better than the others for that. The calculator that is the most frustrating is the TI-Nspire. The interface is very user unfriendly, although it is a very powerful calculator. My RPN machine is going to be the HP50G. The Prime can do RPN too. The Casio I ordered has many reviews which state the interface is extremely nice, so time will tell. Surveying is interesting. I've never done it, but I do know traditional celestial navigation. All that has been replaced in large part by GPS.