the norm of x  
A^{T}  A transpose / the transpose of A 
A^{1}  A inverse / the inverse of A 
Terms about matrices 
determinant minor cofactor adjoint upper triangular lower triangular diagonal 
Systems of coordinates 
cartesian polar cylindric / cylindrical spheric / spherical 
Operations with systems of coordinates 
translation rotation scaling mirroring / reflection 










Useful words and observations 
axis pl. axes focus pl. focuses or foci locus pl. loci vertex pl vertexes or vertices ellipse hyperbola pl hyperbolas or hyperbole 