Hi list and Shahrokh. What do you think the output from factorial of negative values? I read it's supposed to be minus infinity. Anyway, here's a issue I'm reporting that factorial of negative values in [expr] output 0 and freeze Pd for a while: https://github.com/pure-data/pure-data/issues/284
and by the way, as long as we're at it, I see there's a new expr 0.56 version included in pd 0.48-1, cool, I already have a new help file for that in https://github.com/pure-data/pure-data/pull/283
cheers