https://www.gnu.org/software/octave/doc/interpreter/Index-Expressions.html https://www.gnu.org/software/octave/doc/interpreter/Object-Sizes.html https://www.gnu.org/software/octave/doc/interpreter/Exponents-and-Logarithms.html
https://stackoverflow.com/questions/14924181/how-to-display-print-vector-in-matlab