Mathematics and Problem Solvin

2014-11-06 8:15 am
(a) Encrypt the word “GRAPHICS” using the following encryption function
f(p) = (p – 10) mod 26[Show your working]
[img]http://upload.lsforum.net/users/public/i52060RWg132.jpg[/img]

求救

回答 (1)

2014-11-06 6:34 pm
✔ 最佳答案
G=7 f(7) = (7 - 10) mod 26 = 33 - 10 = 23 = W
R=18 f(18) = 8 = H
A=1 f(1) = 27 - 10 = 17 = Q
P=16 f(16) = 6 = F
H=8 f(8) = 34 - 10 = 24 = X
I=9 f(9) = 35 - 10 = 25 = Y
C=3 f(3) = 29 - 10 = 19 = S
S=19 f(19) = 9 = I

GRAPHICS ----> WHQFXYSI


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