9/18
From a few days ago, I always think about matrix. I found we are surrounded by it, for example, people lines, contents of vending machines, crowded cars, a bicycle key, bookshelf, a dozen ice bar in the box, even telephone number!
Now, I’m looking for it. I imagine that I can express the figure of family by matrix. It’s easy shape, but I want to show the linear algebra before describing matrix.
If someone is married, 1(wife)+1(husband) = 2.
In addition, if they have a child, 1+1+1=3.
Furthermore, I can express the number of children is 1,2,3,…n.
So, I can write one family as one family= 1+1+n.
At last, I can change 1+1+n into matrix.
It’s simple, only one column and 3 rows!
I know you may not be absorbed in the matrix now.
But, why don’t you come to this world??
“You know, Mr. Anderson?”
