HP 50G help

[DavidM]

(08-06-2016 08:05 PM)Hlib Wrote:  All this is very difficult for understanding of that why and where user (not system) flags work. I will study this question.

It's actually very simple: User flags aren't used at all and are completely ignored by any built-in functions or modes on your 50g. As Claudio explained above, they are free for anyone to use as they see fit when writing their own programs and library functions.

While it's possible that there are some third-party programs and libraries which make use of User flag settings, there's not really a compelling reason to do so. RPL features such as local and global variables, implied boolean values of numbers (non-zero values are TRUE, zero is FALSE), and the availability of binary integers (eg. "# 1FFh") give more powerful and flexible alternatives to using User flags in most programming contexts. These features also produce code which is easier to understand and maintain, IMHO.