It is nothing more but naming convention. This code was part of the function. Actually, in the final version I removed that "f" and changed some names of variables to shorter versions. It is all about your own preferences towards readability of the code and ability of visual capture of the code. I always try to have code that easy to read. At least for myself.
CU > What is the significance of prefixing all your variables with "f"? I've > frequently seen people use it to > signify the variable is a float, but > you're using it for things that aren't floats. -- https://mail.python.org/mailman/listinfo/python-list
