koku's life journal

NTVY014 (Physical education I) [swimming] - we did backstroke, legs only, and breaststroke, legs only.. very simple, but rather tiring

NMAI057 (Linear algebra 1) [lecture] - reduced echelon form of a matrix and that for every matrix it is unique, matrix products and rules for them (they associate but don't commute), proofs of the rules, definition of the inverse of a square matrix

NMAI057 (Linear algebra 1) [tutorial] - started with a quiz again, but i absolutely demolished it, as in i made two mistakes but was able to find them in time, after quiz we found every solution of a system of linear equations using parameters a few times, it's kinda good i think