Stress in Soil Subjected to Polygonal Shaped Surcharge

Finds vertical stress increment of soil subjected to surcharge applied to polygonal shaped area

function stress=Soil_Stress(x,y,p,point)

Input
x:x coordinates vector of polygon vertices
y:y coordinates of vector polygon vertices
p:surcharge pressure
point:(3*1) x,y and z coordinates vector of point were you want to find stress

Ouput
stress: vertical stress at that location due to surcharge loading.

Example on how to use the function is also provided