I'm a physicist working for the US Patent Office. I was pretty good at Mathematica in college, but didn't pay the license when I graduated. Now I am a n00b again, starting from the beginning on the Raspberry Pi.
1 Take the function f(x)=2x-x^2 and the open interval P=(0,2) why is f(P)=(0,1]? why is that 1 closed? jul 23