Bu mükemmel şekilde simetrik olmalı.
- It needs to be perfectly symmetrical.
Dünya ekvatora simetrik değildir.
- The earth is not symmetrical about the equator.
Is a sibling of is a symmetric relation.
An example of a non-symmetric polynomial is x+2y: if we interchange x and y, this polynomial changes to 2x+y.
\left(\begin{array}{ccc}0 & 2 & 3\\ -2 & 0 & -4\\ -3 & 4 & 0\end{array}\right).