Mercurial > repos > public > sbplib_julia

view plotDerivative2d.jl @ 325:41c3c25e4e3b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
LazyTensors: Simplify the LazyElementwiseOperation type by restricting it and introducing a LazyConstantArray to handle scalars.
author Jonatan Werpers <jonatan@werpers.com>
date Thu, 24 Sep 2020 22:31:04 +0200
parents d61bfc8cf6a5
children
line wrap: on
line source

include("sbpPlot.jl")

g = sbp.Grid.EquidistantGrid((100,75), (0.0, 0.0), (2pi, 3/2*pi))
op = sbp.readOperator("d2_4th.txt","h_4th.txt")
Laplace = sbp.Laplace(g, 1.0, op)

init(x,y) = sin(x) + cos(y)
v = sbp.Grid.evalOn(g,init)
u = zero(v)

sbp.apply!(Laplace,u,v)

#@show u
#@show u'*u

plotgridfunction(g,u)