Eigenvalues and Linear Phase Portraits - Wolfram Demonstrations Project
Eigenvalues and Linear Phase Portraits - Wolfram Demonstrations Project
matrix - Mathematica won't give eigenvectors but Wolfram Alpha will? What am I doing wrong? - Mathematica Stack Exchange
Before my TI graphing calculator died I used to use the 'Solver' function that allowed one to define variables then input knowns and solve for the unknown. Where do I find that