Charlie's.

This week we reviewed & took a test on matrices [Chapter 14].
& like everyday we did aleks.com thingy.
(i still have like a wholeee bunch left to 'master')
& we just started chapter 12 yesterday.
chapter 12 is something weird.
i honestly already fergot how to do it.
the only thing i know is that you draw things,
& then if it says to add them, you connect the two arrows.
& on the two arrows thingy, there's a head and a tail.
so, since i totally fergot how to do it ALREADY.
i'll just do an example of matrices.

EXAMPLE:
[ 2 8 1 ] [ 8 2 7 ]
[ 6 5 7 ] + [ 4 6 9 ] =
[ 8 1 3 ] [ 4 6 2 ]

[ 10 10 8 ]
[ 10 11 16 ]
[ 12 7 5 ]