Working with files in Python is pretty easy. But there’s a common mistake that can sneak into your code. Not closing the file ...

Plans Add -h arg. (Use an arg-parsing scheme for this and also for -d). Add e token Add chs unary operator Add exp unary operator Add log unary operator Add chs unary operator Add recip or inv unary ...

Scott W. Brown, Hyponormal Operators with Thick Spectra have Invariant Subspaces, Annals of Mathematics, Vol. 125, No. 1 (Jan., 1987), pp. 93-103 ...