Laplace's equation
noun
La·place's equation
ləˈplä|sə̇z-,
-pla|
: the equation ∂2u/∂x2 + ∂2u/∂y2 + ∂2u/∂z2 = 0 often written ∇2u = 0 in which x, y, and z are the rectangular Cartesian coordinates of a point in space and u is a function of those coordinates
Word History
Etymology
after Pierre Simon de Laplace †1827 French astronomer and mathematician