Matrix similarity by an orthogonal matrix.
The quality of agreeing or corresponding; being suitable and appropriate.
A relation between two numbers indicating they give the same remainder when divided by some given number.
More generally: any equivalence relation defined on an algebraic structure which is preserved by operations defined by the structure.
The quality of being isometric — roughly, the same measure and shape.
The property of two matrices being similar.
A transformation that preserves angles and the ratios of distances
Closeness of appearance to something else.
The relation of sharing properties.