Hi , i just wrote an array formula designed to sum up all dates with the day of the month being the 17th, but i keep getting a return of zero with this formula and am not sure why. I evaluated it and saw the array work i.e. it calculated all the days and had 4 return as 17 out of the array list, but for some reason the calculation gives me 0 when it's all said and done.
Cell Array Formula : {=SUM((DAY(B1:B11)=17))}
Solved by E. Y. in 18 mins