olemus
vektor (a[1], ... , a[n]), mis on esitatud n-realise üheveerulise,
st n☓1-maatriksina M , kus M[i, 1] = a[i ] iga i=1...n korral
= a matrix with only one column

ülevaateid
https://mathworld.wolfram.com/ColumnVector.html
https://en.wikipedia.org/wiki/Row_and_column_vectors
https://www.quora.com/Why-is-a-column-matrix-called-a-column-vector
https://study.com/academy/lesson/difference-between-a-row-column-vector.html
https://thirdspacelearning.com/gcse-maths/geometry-and-measure/column-vector/

vt ka
- reavektor