The Museum of HP Calculators

HP Forum Archive 20

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How about a pen that calculates...
Message #1 Posted by Egan Ford on 27 Jan 2011, 4:47 p.m.

With all this talk about pocket calcs, new sci calcs, etc..., why not something completely different?

Watch the video below.

http://www.youtube.com/watch?feature=player_embedded&v=Bf0XAf8_mLI

If this pen can play Tic-Tac-Toe and Zork, I have to believe that some here could make it a very compelling and very capable calculator.

      
Re: How about a pen that calculates...
Message #2 Posted by Ren on 27 Jan 2011, 8:42 p.m.,
in response to message #1 by Egan Ford

I thought about a smart pen decades ago. Only I thought it needed a 2 axis rotary encoder to follow the movement of the ball point. The Livescribe uses a built in camera and special paper. Do others use accellerometers?

Of course, decades ago neither the technology nor my level of knowledge were sufficiently advanced. Nowadays the technology is there...

Ren

dona nobis pacem

      
Re: How about a pen that calculates...
Message #3 Posted by Bill (Smithville, NJ) on 28 Jan 2011, 9:52 a.m.,
in response to message #1 by Egan Ford

Egan,

I had one of the Live Scribe pens and it was pretty amazing - just a lttle bit too fat. It comes with a couple of cards that have a calculator printed on it (4 banger calculator & a scientific calculator) which you could tap out the keys with the pen and get the calculated results. Worked okay - but a real calculator is easier/quicker to use.

Bill

            
Re: How about a pen that calculates...
Message #4 Posted by Egan Ford on 28 Jan 2011, 12:18 p.m.,
in response to message #3 by Bill (Smithville, NJ)

I was thinking along the lines of a more natural calculator, e.g. draw matrices, equations, etc... If TTT can be done, so can a matrix.

                  
Re: How about a pen that calculates...
Message #5 Posted by Bill (Smithville, NJ) on 28 Jan 2011, 12:45 p.m.,
in response to message #4 by Egan Ford

I seem to remember that I could write a simple equation out such as

4 + 5 =

and it would give the answer.

I know you can draw the piano keys out and then play the piano. They do have some sort of applaction development kit that will let you create what they call PenApps. So it should be possible to do something similar for a calculator.

Bill

                  
Re: How about a pen that calculates...
Message #6 Posted by Steve S on 28 Jan 2011, 7:27 p.m.,
in response to message #4 by Egan Ford

MathJournal is an application that runs on a tablet and will solve many classes of handwritten math. It will also generate plots.

www.xThink.com


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