Name:
Anonymous
2010-01-13 14:53
{{\nabla}^2}T} = {\frac{1}{r^2}}\frac{\partial}{\partial r}\Bigg({r^2}{\frac{\partial T}{\partial r}\Bigg) + {{\frac{1}{{r^2}{\sin\theta}}{\frac{\partial}{\partial \theta}}{\Bigg({\sin \theta}{\frac{\partial T}{\partial \theta}}\Bigg)} + {{\frac{1}{{r^2}{{{\sin}^2}\theta}}}{\frac{{\partial}^2 T}{\partial {\phi}^2}}