A muon is a type of elementary particle that carries a negative charge, just like an electron.

He admits that he is bad at athletics.

He was neglecting his work.

He had his coins exchanged.

His name is Tai, which means peace.

The police apprehended the criminal.

He is the leader of that team.

A diagonal matrix is a matrix in which all elements outside the main diagonal are zero.

The diagonal elements of this matrix are all 1.