Laplace's equation
Laplace's equation is a partial differential equation named after its discoverer Pierre-Simon Laplace.
Laplace's equation for a scalar variable φ(x,y,z) in a 3D space with unit basis vectors i, j and k can be written as
- ∇2 φ = 0
where the operator ∇ stands for (∂/∂x i + ∂/∂y j + ∂/∂z k)
Expanding this into its full component form, we have:
- ∂2/∂x2 φ(x,y,z) + ∂2/∂y2 φ(x,y,z) + ∂2/∂z2 φ(x,y,z) = 0
Solutions of Laplace's equation are important in many fields of science, notably the fields of electromagnetism and astronomy.
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