| | There are other things that can be covered that are very good for high school students: projective geometry, conic sections, vectors, matrices, operators, eigenvectors/values, function spaces, introduction to differential equations using eigenfunctions, complex numbers in electrical engineering, Fourier series, inner products, geometrical inversion, .... | | There are other things that can be covered that are very good for high school students: projective geometry, conic sections, vectors, matrices, operators, eigenvectors/values, function spaces, introduction to differential equations using eigenfunctions, complex numbers in electrical engineering, Fourier series, inner products, geometrical inversion, .... |