Question about HP Office Equipment & Supplies
I have the above calculator and would like to use it, but I don't have the manual and don't know what type of batteries to buy. Could you tell me the type and voltage? I know there are three of them.
There are plenty of casio 991 manuals here. Take your pick!
Dom't forget to leave feedback if it solves your problem. 'fixya'!
Posted on May 01, 2008
1. To convert a number to scientific equation, use [2nd][Sci]
Exemples 12345 [=] screen shows 12345 Then [2nd][Sci] coverts it to 1.2345 ^04 to the power 4.
2. To enter directly a number in scientific notation (e.g. -1.2345 X10^(-65) a very small number) you use the [EE] key 1.2345[+ /-][EE][+/-]65 shows as -1.2345 -65
1.6X10^(-19) 1.6[EE][+/-]19 shows as 1.6 -19
Hope it helps
Posted on Sep 17, 2009
Sorry to disappoint you: This calculator is not programmable.
Posted on Nov 30, 2009
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Posted on Jan 02, 2017
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