Mercurial > repos > public > sbplib_julia

view plotDerivative.jl @ 1251:6f75f2d2bf5c refactor/grids

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Qualify package when using split_tuple and concatenate_tuple
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 22 Feb 2023 12:45:31 +0100
parents 8d505e9bc715
children
line wrap: on
line source

g = sbp.Grid.EquidistantGrid((200,), (0.0,), (2pi,))
op =sbp.readOperator("d2_4th.txt","h_4th.txt")
Laplace = sbp.Laplace(g,1.0,op)

init(x) = cos(x)
v = sbp.Grid.evalOn(g,init)
u = zeros(length(v))

sbp.apply!(Laplace,u,v)

@show u
sbp.Grid.plotgridfunction(g,u)