NOt exactly a problem as my Casio SL-1100TV calculator works fine. What I am trying to find out more about is the 'K' function, when you can press the + button twice and it carries over the number that preceeded the ++ instruction. It is something I haven't come across before and want to learn more about it. There were some instructions on the back of the packet but I ripped into the calculator and they are illegible now. Can you help? Sian

Hello,

If you have say to multiply 100 numbers by one single multiplier ( you have 100 multiplications to perfom) you use the Constant function abbreviated to K.

This is how you go about it
in a*b , a is called multilpicand, b is the multiplier.
You enter the multiplier (6) then you press twice on the multiplication key. You are ready to repeated the some operation but with a different multiplicand
You enter the first mutiplicand then you press = (or enter) the result is displayed.
Every number you are going to enter will be multiplied by 6
[6][*][*] -------constant multiplication with 6 as multiplier, Then
[5][=/ENTER/EXE] yields 30
[6][=] yields 36
[0.5][=] yields 3.

Be careful!! If you do not enter a new multiplier and just press [=] the calculator uses the last calculated result as the multiplicand. (On certain calculators, the last result is stored in a register called Ans (short for answer.)

What I described for the multiplication is valid for any arithmetic operation. Thus
[6][+][+] is constant addition with 6
[18][/][/] is constant division with 18 as divisor.

Hope it helps