Hello list: I apologize if this is already a very well known issue, but i've found that the "fact" (factorial) function does not seem to work properly in the "expr" external when called with an argument greater than 12. I attached a patch in which i've made my own abstraction (which I cannot tell it is done in the most efficient way, but matches the result of any calculator) to show the discrepancy. Am I doing something wrong?
Oscar Pablo Di Liscia