Mercurial > repos > public > sbplib_julia

view plotDerivative.jl @ 1739:e1ae5d8e30c3 feature/grids/curvilinear

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add tests for jacobian_determinant, metric_tensor, and metric_tensor_inverse
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 11 Sep 2024 08:59:03 +0200
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)