When plotting the graph of function y=x*x on the segment [0,2] I receive the graph which X-axis unit is not equall to the Y-axis unit, i.e. [0,2] segment looks more lengthy than [0,4] segment on Y-axis. Please, let me know what I have to do correct this? Thanks.
And also, how to receive two graphs of two different functions in one XY system? Thanks.