Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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I hope so (not that you get stuck... that you post more interesting questions ) since i'm studying the same subject right now. Good work!
Interesting. I suppose it is rather complete then, isn't it? At least considering the familiar example that you posted.
Yes, it's exactly the same argument but wrote in a less pedant manner
(!=)That is computerese for not equal.
Yes, I am sorry. Very obvious.
you have that reducing down to A, sholdn't it be IA?
I just found out (Google!) that there is a term for such matrices, they are called idempotent matrices. I'm going to look a little more into them now and see if something useful appears.
Oops you edited your post again before I was able to read it.
Did you see the error in line 2?
That's alright, Bobbym. I'll see if someone else has something to add.
But I can say this there is an error in your second line of your 3rd attempt.