20 Most Recent Texas Instruments TI-15 Explorer Calculator - Page 3 Questions & Answers

Press FIX then . (decimal point).

"Fix" indicates the calculator is rounding results. Press "Fix" followed by "." (decimal point) to remove the fixed decimal setting.

clear the memory

look on the back cover and find the reset button, use a pen and press it and see if it clear the problem also check the batteries they might be dead check the back cover and see what type you need take it to the watch repair dept and buy some batteries and have them remove the back cover of the calculator and replace them. put the cover back on . your calculator will work as good as new again.

Hello,
You reset it by pressing simultaneously and holding the two yellow keys on both side of the navigation keys.
Hope it helps.

Hello,
You should enter it as follows [SQRT]36 ) [ENTER/=].
If you define some function f of a variable x you write that f(x), where the parentheses enclose the so-called argument (objet on wich the function acts). It seems that on this calculator the opening parenthesis is implicit: the calculator supplies it when you press [SQRT] but does not display it (a design flaw?). However the closing parenthesis must be entered by you to signifie to the function [SQRT] that you have finished entering the argument. Weird but one can live with it.
Hope it helps.

Hello,
If they are solar powered and if the power down button is not functionning I would not worry about them. Usually battery powered calculators have an automatic power down feature, and sometimes solar powered machines as well. The only free thing we get is the sun's energy. Maybe not the only one (oxygen).
Hope it helps.

Hello,
You can still that on the TI 15 explorer (look for constant calculations page 57 in your user manual or maybe the teacher's guide that you can download from education.ti.com)

1. First you define the operation you want to perform, using the OP1 key as follows
[OP1] [+] [6] [OP1] this sequence stores the operation you intend tu use repeatedly.
2. Since you want multiples you must start the sequence with 0
You do that by keying in the number 0
3. Press [OP1] repeatedly.

Each time you press [OP1] a counter shown on the lower left corner of the screen increases its value by 1, and the result (on the lower right corner) shows you the next multiple.

If you just want to add the same number repeatedly starting from some chosen number, in step 2 above use any number but zero.

[OP1] [+] [6] [OP1]
2
[OP1] [OP1] [OP1 etc.
will generate the numbers 2+6=8, 14, 20 etc.

Hope it helps

Hello,
The TI-15 Explorer is for primary schools (low grades). If you know about trigonometry that is not the calculator that you need.

Look for any SCIENTIFIC calculator (the cheapest you can find at a dollar store ) will do the job.

Hope it helps.

I have the exact same problem (just happended recently) with my TI-5045 II after 25 years of good service. My solution? I just bought another model: Sharp EL-1801V at Stapels for about $31.00. To get the old one fixed will probably cost me $25.00-30.00 just to diagnose, plus shipping and parts and labor. And that assumes I can find a shop to do it, or that TI still stocks the part(s) gone bad. Same old problem with all technology.

Refer to page no 13 of user manual of calculator. (TI-30XS / TI-30XB MultiView™ Guidebook - Texas Instruments - US and Canada) It will solve your problem.

Try the Ti site. I doubt it is still available as it is a very old machine.

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Are the batteries fresh? Try putting new ones in. If that doesn't help then your LCD display is probably damaged and it will probably get worse. Can it be fixed...probably, but what's worth to you? If the calculator is only worth $50 (IDK?) but they want $100 to fix it at an electronics repair shop...is it worth it?

http://www.manualsonline.com/

Press the trig key to open the templates.