anonymous
  • anonymous
The Matrix c=1 -2 (top)-3 7(bottom) was used to encode a phrase to [7 -28 -25-35-2 -21 107 90 123 17] . find C^_ and use it to decode the matrix. I need someone to show me how i would decode a matrix. i will become a fan and give a medal to whoever helps me
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
anonymous
  • anonymous
*the screenshots are easier to understand * I will BECOMe a Fan*
perl
  • perl
you can encode it using column vectors

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
i dont know what that is
perl
  • perl
which one do you want help with, number 13?
anonymous
  • anonymous
yes
perl
  • perl
ok we want to encode the phrase, one question to go. i believe we want to include spaces. so we can use a matrix
anonymous
  • anonymous
isn't 1 -2 the matrix ? -3 7
perl
  • perl
The idea here is to code it this way $$ \begin{bmatrix} 1 & -2 \\ -3& 7 \end{bmatrix} \cdot \begin{bmatrix} O & E& Q& E & T & O\\ N &\_ & U & S & I & N \end{bmatrix} $$
anonymous
  • anonymous
so what i do next multiply it ?
perl
  • perl
The idea here is to code it this way $$ \begin{bmatrix} 1 & -2 \\ -3& 7 \end{bmatrix} \cdot \begin{bmatrix} O & E& Q& E & T & O& \_ &O &G\\ N &\_ & U & S & I & N &T &\_ &O \end{bmatrix} $$
perl
  • perl
do you agree with that so far, we just need to change the letters to numbers now
anonymous
  • anonymous
oh thats all we have to do ?
perl
  • perl
change to numbers and multiply, yes
anonymous
  • anonymous
okay i think i got it now
anonymous
  • anonymous
but where did you get all those letters from ?
perl
  • perl
read it down vertically
anonymous
  • anonymous
ok
anonymous
  • anonymous
do i replace the _ with a zero ?
perl
  • perl
http://prntscr.com/7c1g1p
perl
  • perl
right
anonymous
  • anonymous
okay i seee lol ....
perl
  • perl
here is an example http://aix1.uottawa.ca/~jkhoury/cryptography.htm
anonymous
  • anonymous
oh that's what you meant by using column vectors
perl
  • perl
right, the only difference they used number 27 for _ and we used 0
anonymous
  • anonymous
yeah , so when you decode it ,it'll turn into letters or a phrase
perl
  • perl
right
anonymous
  • anonymous
okay i understand how to do it , it's going to take me a minute to get my answer soo thanks for helping me understand it .

Looking for something else?

Not the answer you are looking for? Search for more explanations.