Where „r‟ is the radius of a circular tablet
p im t ×d
Where„d‟ is the diameter of tablet Therefore, metric=4*pi*area/perimeter^2 So, metric closer to 1 indicates that tablet is not defected. Also no. of tablets are calculated which helps to determine the correct figure in a tablet strip. Counting can also help to find the pharmaceutical company. They can simply discard the strip containing less or greater no. of tablets.