Hey all
Sorry if this has been answered before, I did look through the forums but I couldnt see the answer for this model of calculator. I am at University and we have been told we have to use the calculator FX-85MS for all our exams. We are currently studying DES cryptography and we were looking at how the cipher text is generated.
The upshot of all of this is that we had to do the following calculation;
5^13 mod 77
Now the 5^13 is nice and easy, but I have no idea, nor does my lecturer on how to do the mod function on this calculator? Any input would be great on this one as at the moment I am kinda stuck on it
Kind Regards
Mark Furby

Mod Functions On Casio Fx-85ms
Started by
Xeuim
, Nov 13 2007 07:27 PM
3 replies to this topic
#1
Posted 13 November 2007 - 07:27 PM
#2
Guest_helper_*
Posted 20 November 2007 - 06:06 PM
How about
Fix 0
(5^13/77-Rnd(5^13/77)) =
then Ans*77
Works for me
Fix 0
(5^13/77-Rnd(5^13/77)) =
then Ans*77
Works for me
#3
Posted 05 December 2007 - 01:45 AM
x mod y is the remainder of x/y, or
x-(y*int(x/y))
hth
x-(y*int(x/y))
hth
#4
Guest_Priyank_*
Posted 01 February 2010 - 02:27 PM
what about 5^55 mod 221, it does not work for me.
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