How to use TI 36x solar find sample variance

The quick way to determine absolute value is to square the value and take the square root of that.
So on the TI, with the value on-screen, just push these 2 keys in sequence (they are right next to each other):

Texas Instruments has the guidebooks for many of their calculators on their support page. http://education.ti.com/en/us/guidebook/search/scientific-calculators is the best starting point.

The direct link to the TI-36x Solar Guidebook is http://education.ti.com/download/en/US/8E1BED432FAC4E4FB5E7A01102F78382/BDD801AB9F3244E3B275AB93FD4F2238/36x-eng.pdf . If you click Continue as Guest, you should be able to download the PDF.

I hope this helps.

Cindy Wells

Look in the back of the calculator, some TI models have a pin hole to hard reset the calculator.

The inverse of what&? Each inverse function uses the same key (shifted) as its direct function. For the reciprocal key look for x^-1 or [1/X]

Use the xth-root function (2nd function of the y^x key, located just above the divide key). For example, to calculate the fifth root of 32, press 3 2 2nd y^x 5 =

The inverse key is marked "1/x" (second key on the third row). The natural logarithm key is marked "LN" (fourth key on the top row).

Here it is in GIANT size:

http://www.datamath.net/Manuals/TI-35X_US.pdf

Hi,
I would certainly upgrade my choice to the FX-991ES. It can do (numerical) integrals, derivatives, it has 40 physical constants (instead of 8). It can do unit conversions, and the Natural display is a real pleasure.
Don't get me wrong, I am no TI calculator basher. I have just bought the TiNspire, AND TINspire CAS. I have a TI92, a TI83, Ti BA 35Solar.
If you do become an engineer, the calculators you might want to use (not during the exams) are the TI 89 Titanium, HP49G+/HP50G, the Casio ClassPad 330. You see I recommend the TI89 Titanium because there is a wealth of Engineering programs written for it.

Hope it makes your decision easier.

You can download it from Texas Instruments support pages:
http://education.ti.com/downloads/guidebooks/scientific/36x/36x-eng.pdf

buy another one