I only took one class of PDE and even though I do remember the relationship between Laplace and Poisson I really do not recall Helmholtz at all. Anyways, I am trying to figure out if my software (a software I found online, FISKPACK) that solves Helmholtz equation can be used to solve Poisson equations? I mean, I understand that with Poisson, the function to the right is not necessarily related to the function itself but can we say Helmholtz is a subset of Poisson?(adsbygoogle = window.adsbygoogle || []).push({});

Any one here can advice about a software that solves Poisson equations? I found FIShPACK and I am trying to understand it enough to use it.

Thank you

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# Have a software that solves Helmholtz equation, can I use it for Poisson?

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