I’ve written this post based on ‘Linear Algebra’ lectures (MIT 18.06 from lecture-01 to lecture-03) by Gilbert Strang. This post is intended for person who needs to learn basic knowledge about linear algebra. (YouTube link for Strang’s Linear Algebra : Here ) At this post, I used One-Note (Microsoft) program replacing original hand-written notes. So, the contents are consecutive images captured from ‘pdf’ documents saved by One-Note. You can also get the .pdf file in my github .