The package can be installed with the package manager by

import Pkg

First steps

A simple Laplace FMM of a random distribution of charges is computed by the following code:

using ExaFMMt
sources = rand(Float64, 100, 3)
targets = rand(Float64, 100, 3)
charges = rand(Float64, 100)

A = setup(sources, targets, LaplaceFMMOptions())
y = A * charges

The variable A resembles the FMM-matrix and can be multiplied by a vector of Float64 charges with 100 elements.