Question

how to find the kernel of a matrix

Answer 1

nulspace

Answer 2

Ax=0 is the kernel

Answer 3

okay so if this is matrix:
1 2 -3
-1 -2 3
4 4 4

Answer 4

row reduce it, what do we get?

Answer 5

1 0 5
0 1 -4
0 0 0

Answer 6

you see the row that has no pivot point? thats your nulspace; just change signs on it

Answer 7

forgot the 1

Answer 8

the row is always equal to itself ....

kernel = [-5,4,1]

Answer 9

i hope that makes sense

Answer 10

Thank you very much.

Answer 11

yw