Radial Stress Around a Vertical Wellbore

\sigma_{rr}=0.5(S_{hmax}+S_{hmin}-2P_o)(1-R^2/r^2)+0.5(S_{hmax}-S_{hmin})(1+3R^4/r^4-4R^2/r^2)\cos(2\theta)+P_oR^2/r^2

Tabular solver

Run the same equation across multiple cases and compare results in one table.