Question about Computers & Internet
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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
Durabrand 828 and LeWorld 282 are the same calculator. I too lost my tiny manual happy calculating !
Posted on May 09, 2009
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
Tips for a great answer:
Aug 04, 2014 | HP 20S Scientific Calculator
Jan 15, 2013 | Casio FX83ES Scientific Calculator
Nov 23, 2012 | Office Equipment & Supplies
Jun 07, 2011 | Casio FC-200V Scientific Calculator
Aug 24, 2009 | HP 12c Calculator
Aug 07, 2008 | Office Equipment & Supplies
Apr 24, 2008 | Office Equipment & Supplies
63 people viewed this question
Usually answered in minutes!