## Known problems to be fixed

- [ ] *Plot3DSys* function has issues when the matrix has a rows made of all zeros
- [ ] Exercise 4 in Notebook 1.2 displays a *RuntimeWarningError* due to a division by 0, 
      if the "sliging" parameter *h* is set to 0
- [ ] *printA* library method fails if it is given a row vector (i.e. a list of int/float)
      as input
- [ ] *ipywidgets* have troubles being displayed on **Noto**