# My TI-30Xa

Discussion in 'Electronic Design' started by Jamie, Jun 6, 2012.

1. ### JamieGuest

I returned to work today after vacation week, and grabbed my
calculator, pins, a couple of precision screw drivers I carry around
with me, in my shirt pocket. I wanted to Kack-CU_late something before
going to work. Pulled open the slide cover to the TI-30, turned it on,
and noticed the bottom row of the LCD was missing. I said Hummm...

So, I quickly retrieved a \$3.00 calculator I got at the local
junk store, something I usually pick up for shirt units if it's
cheap and covers the sci basics. Well, I noticed this \$3.00 unit has
HEX, OCT, BIN and DEC keys on it, along with the standard SCi functions
of course. Even has some Integral and sum loop function. I said hmm,
that was one hell of a find, why didn't I get the rest of them?

In any case, I fixed my TI-30Xa and put that gem of a \$3.00 calculator
back into its box where it's safe

P.S.

This thing does not even have a brand name on it..

Jamie

2. ### Martin RiddleGuest

I think it may be a rebranded Casio, like the one I have in my tool box.
cost me \$9 at staples.

Cheers

3. ### Tim WilliamsGuest

I have an old (as consumer goes) generic scientific calculator, branded
Canon. It does sci., stats and complex.

To do complex on mine, you:
Enter "CPLX" mode (2nd F + whichever says CPLX)
To enter a number:
Type the real component, then press "a". If the real component is zero,
then omit this step or press "0", "a".
Type the imaginary component, then press "b". If the imaginary component is
zero, omit this step or press "0", "b".

To calculate:
Enter a number, press the operator (unfortunately, no extended functions are
available, only arithmetic), enter another number, and press "=".

press "a" to read the real component
press "b" to read the imaginary component
press R>P to convert to polar; "a" now contains the magnitude and "b"

A number can respectively be entered in polar format, followed by the P>R
function (after which, the rectangular components can be read off).

I haven't seen any cheapie scientific calculators with symbolic math or
calculus features, but I haven't gone shopping for one in ages. I always
have MATLAB, Excel, SPICE, Google Calculator or Wolfram Alpha handy if I
want to poke around with various things.

Tim

4. ### JamieGuest

That sounds like it maybe the same one. The HEX,OCT, BIN, DEC are on the
common -,x,+ etc keys.. and it does do polar, complex etc..

Yes, it has the Real number, imaginary part. ect.

The STAT mode works here, you need to first turn that mode on.
that is the shift+On button..
then the keys on the right side become the functions you see in white and
plus the shifted functions..

Jamie

5. ### Mac DecmanGuest

Did you ever try Yorick? It's supposed to be the Python MATLAB.
Hah I still use my HP 11C until it gets more than a few register deep
then I use Mathematica/Alpha. I do like the new Mathematica that it
can use Alpha to parse the direct syntax without writing it out in
Mathematica.

Mark DeArman

6. ### Tom Del RossoGuest

I checked a CVS. They have nothing near that value.

7. ### Tom Del RossoGuest

Did the junk store have a name? I can never fnind anything like that in the
NY area.