Question

Matrices! :)


Please no direct answers and I just need help getting started and I can probably finish it up :) Thank you!

Answer 1

whats with the smile ... matrices are no joke lol

Answer 2

eheh

Answer 3

lol

Answer 4

seems to be saying

put the letters provided to the numbers in the matrix

Answer 5

Uno momento...

Answer 6

That's where I am confused...

Answer 7

hmm smells to me like \(\begin{bmatrix}
A&-B\\-C&G
\end{bmatrix}\)

Answer 8

I got that...I don't think that's what I do lol

Answer 9

hmm

Answer 10

thats not it

Answer 11

use the code to rewrite the phrase in a numerical form

then run it thru the matrix to encode it

Answer 12

okay....give me a second lol

Answer 13

hmmm

so hmm "one question to go" in numeric

and then... multiply times the given matrix maybe?

Answer 14

it works better if theres a 5x5 matrix and you organize the numbered phrase by 5s and insert them ....

but 2x2 and by 2s is fine. not very unbreakable code tho

Answer 15

also shuffling the code so that its not the standard abc = 123 stuff

Answer 16

So the numeric form of this sentence is:
15 14 5 0 17 21 5 19 20 9 15 14 0 20 15 0 7 15

Answer 17

You will want to write the message on 2 lines for example
ONE QUEST
ION TO GO

now replace each letter with its number

Answer 18

oh!

Answer 19

It's that simple?

Answer 20

nothing in the instructions suggest two lines to me

Answer 21

like the first part...

Answer 22

then you do a 2 x 2 matrix times 2 x 9 matrix to get a 2 x 9 "encoded" matrix

Answer 23

That's it?

Answer 24

15145017215192091514020150715

break off the digits in 2s, and use them as vectors:

x1 = [1 5]
x2 = [1 4]
x3 = [5 0]

...

Ax = b gives the encoded message

Answer 25

not sure if by 2s is needed, the project is rather vague at points

Answer 26

Yes it is -_-

Answer 27

by all accounts we could break it into 3s

151 450 172 151 920 915 140 201 507 150 000

and now use them in pairs as vectors for the matrix

Answer 28

I don't believe I have done that yet.....

Answer 29

I'll look at it again, just in case....so one moment please

Answer 30

my concern is that the decoding might not be smooth ... determining if 203 is 20 and 3; or 2 and space and 3 ... oh well

Answer 31

Haven't found anything yet, but I will keep looking :)

Answer 32

good luck, you have a few different approaches here. the vagueness of your project leads to many approaches.

Answer 33

Okay. Thank you