Pretty solid, as far as I can make out

Major updates to the bode plot, step plot is now pretty perfect. Only things left is maybe Zeroes and K in the Bode section like the zpk() MATLAB function and add a K to the first and second order transfer functions.
To do that I need to figure out how to get more than 1 editable text field in the same page, shouldnt be too difficult but I've been laying it off for a while.
Should be slightly less prone to crashes, I optimised some of the math functions quite a bit, some of them are quite naive I admit, but they seem to speed things up a fair amount :)

First Release!

Have fun!! try not to crash your calculator :)