Question about Casio FX260 Scientific Calculator
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Posted on Jan 02, 2017
It's not suppose to get off the screen. Unless your trying to switch modes, which deg is what you normally would be using. If not then it says it right on the front of it.
Posted on Feb 16, 2009
I have the User's Guide for fx-260SOLAR calculator
The manual is similar as for fx-82Solar calculator.
In Guide thei recomendet : http://world.casio.com/edu
But website has moved to http://edu.casio.com/
Posted on Feb 22, 2010
If the concentration is of the form 1* 10^ (-a) where a is an integer between 0 and 14, the pH is given by a.
c= 1.* 10^(-5), pH=5
For other values, ex: c=3.68 *10^(-8)
pH: 3.68 [EXP] [+/-] 8 [LOG] [+/-] Result is 7.434
Above, the [+/-] key is the change sign key, just above the  key.
Posted on Mar 16, 2010
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