Manual for Scio fx82ES - Computers & Internet

To get the cotangent, you use cot(x)=1/tan(x).

disassemble the engine

Press the [S<=>D] key to convert from fraction to decimal and back. Any information you need is in the manual.

Here is the link to the support site for the Casio calculators http://support.casio.com/manuallist.php?rgn=1&cid=004

Find the formula for the correlation coefficient and use the calculator to calculate it.
You can also use the calculator to do statistics. It has some keys to retrieve the statistical values calculated. You will find r among them.
Please do read your manual to learn how to do statistics.

You cannot do matrices with this calculator. Use an FX991 ES, or FX115 ES.

Here are screen capture of the tangent function and the principal branch of the arctangent function.



Inverse function (principal branch)

That covers a lot of possibilities. Sorry I can't help if you do not give details.

go to this link-->http://safemanuals.com/user-guide-instructions-owner-manual/CASIO/FX-82ES-_E
Rate it full , download option will enable, click it and download the user manual for your calculator.
thanks for rating good luck

http://support.casio.com/manualfile.php?rgn=1&cid=004001012