A square matrix A is called what if its transpose is also its inverse (Aᵀ = A⁻¹)?
Show answer
Orthogonal matrix
Orthogonal matrices represent rotations or reflections. They preserve the dot product (and thus lengths and angles), meaning the transformation is an isometry.
Also asked as:
- What name is given to a square matrix where the condition Aᵀ = A⁻¹ holds true?