Skip to main content
2 events
when toggle format what by license comment
Oct 17, 2018 at 5:58 comment added Ali Taghavi Thank you and +1 for your interesting answer whose formula is consistence with the formula in one varible case. What about the first part of the question.
Oct 15, 2018 at 20:14 history answered Gjergji Zaimi CC BY-SA 4.0