Taking Logs of any Base on a Casio FX-CG50 or Casio FX-9860GII - YouTube
Matrix Calculations on the Casio FX-CG50AU - YouTube
Casio "prism" FX cg50 graphing calculator. What's the difference between these two (UK non-prizm on left and American prizm on the right)? : r/calculators
Casio FX-CG50 3D Graph Catalogue Function Graphic Calculator - Etsy