HP Forum Archive 09

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Help me with my 10C Message #1 Posted by Therese on 9 Sept 2002, 2:00 p.m. It's in radian mode, how do I get it back to degrees? The calculator must have gotten banged around in my purse. Of course I don't have a manual....this was mom's old calculator she kept in the camping trailer to figure out her gas mileage on long trips.

Re: Help me with my 10C Message #2 Posted by Juergen Rodenkirchen (GER) on 9 Sept 2002, 2:56 p.m., in response to message #1 by Therese Hi Therese! I don't have a 10C calc but I checked a picture of the machine here at MoHPC. So, this pic reveals that pressing the gold shift key and afterwards the "4" key (which has printed DEG in gold above it) should put you back to degrees mode. Just for your information, pressing the gold shift key activates the secondary function of any key that has one (printed in gold above that key).

Got the degrees thang sorted Message #3 Posted by Therese on 9 Sept 2002, 5:17 p.m., in response to message #2 by Juergen Rodenkirchen (GER) Got it, thanks everyone. I was looking at the rad and deg functions on the extreme right hand side, the ones with the arrows. Hadn't noticed the number 4 and 5 keys.

Re: Got the degrees thang sorted Message #4 Posted by Vieira, Luiz C. (Brazil) on 10 Sept 2002, 4:36 p.m., in response to message #3 by Therese Hi; The functions [->RAD] ([SHIFT][-]) and [->DEG] ([SHIFT][+]) are used to convert from readians ->DEGrees and from degrees ->RADians. Angles in degrees to be converted to radians must be entered as decimal values, not minutes-seconds. If you want to find the radians equivalent to 21 degrees and 30 minutes, you should input 21.5 (21 degrees and half degree) instead of 21.3. Anyway, you can also convert from degres.minutes-seconds to decimal degrees with [->H] ([SHIFT][1/X]) and vice-versa with [->HMS] (([SHIFT][yX]). Try this: 21.3 [SHIFT][1/X] (->H) Display: 21.5000 Best regards.

Re: Help me with my 10C Message #5 Posted by ojm on 10 Sept 2002, 7:18 a.m., in response to message #1 by Therese You say it got reset by banging around inside your purse - you may want to treat it a little differently in the future. That 10C calculator is now a very valuable rare item that a lot of these calculator collectors would drool over.....

Re: Help me with my 10C Message #6 Posted by Therese on 10 Sept 2002, 5:54 p.m., in response to message #5 by ojm Really? What do you think it's worth? It's probably on it's original set of batteries.

Re: Help me with my 10C Message #7 Posted by Vieira, Luiz C. (Brazil) on 10 Sept 2002, 6:28 p.m., in response to message #6 by Therese Hi, Therese; have a brief look here. This is a link to a page with prices and rarety in the museum. Just navigate through the page and you'll see a table with prices. The HP10C is in the range of US$100 - US$400 (just in special, complete, NIB -new-in-box- condition with a devoted collector), as you'll see for yourself. %0

Re: Help me with my 10C Message #8 Posted by David Smith on 11 Sept 2002, 6:24 p.m., in response to message #7 by Vieira, Luiz C. (Brazil) I cant remember a recent 10C selling for less than $200... even really ugly ones. NIB units seem to go well over $500.

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