1. Find `Trace(A)` ...
`A=[[1,2,3],[4,5,6],[7,8,9]]`
Solution:
`trace(A)` | = | `trace` | | `1` | `2` | `3` | | | `4` | `5` | `6` | | | `7` | `8` | `9` | |
|
|
`=1+5+9`
`=15`
2. Find `Trace(A)` ...
`A=[[1,1,1],[2,-1,-1],[1,-1,1]]`
Solution:
`trace(A)` | = | `trace` | | `1` | `1` | `1` | | | `2` | `-1` | `-1` | | | `1` | `-1` | `1` | |
|
|
`=1+(-1)+1`
`=1`
This material is intended as a summary. Use your textbook for detail explanation.
Any bug, improvement, feedback then