Algebra 2 - Inverse Matrices to Encrypt and Decrypt Messages

25 80 12 3 5! With the appropriate matrix understanding, you'd know that I just said "Hello!" Yay Math in Studio presents how to use inverse matrices to encrypt and decrypt messages. This is a fascinating topic, and once you understand how it works, it's not so bad. In this video, we walk you through the process of setting up a message, encrypting it with what's called an "encoding matrix," then use the inverse of that matrix to decrypt. Then we round out the lesson with the same tasks on the TI-84 graphing calculator. Enjoy this peek into the world of code breaking, YAY MATH!

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[willdove]

That was awesome. I have so much respect to teachers like you who can give real world examples of WHY this kind of maths is useful. Thanks for sharing. I know what I am doing with my students on Monday.

[Cognitoman]

Dude you helped me pass my math classes in college in 2011 hahaha

[doll]

hah I can't believe I've never found you for any other math videos, I look up dozens a day. I love you! thanks for a great video!

[RaviYadav-gyrq]

mr yaymath this is awesome .thankyou so much for this beauty of maths

[teddyterrax]

this is fascinating thankyou so much, and your reaction when it worked made my day😂😂

[Rovin]

what letters are represented by the negative numbers in the encoded matrix
say you had a -110?

[zerocool]

can you do vectors and subspace please

[elvispresley]

I'm shocked that this was taught in Algebra 2!

[tm]

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