Mercurial > repos > public > sbplib_julia

view plotDerivative.jl @ 45:56722ba36604

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
ass script that plots the derivative
author Ylva Rydin <ylva.rydin@telia.com>
date Thu, 10 Jan 2019 16:51:52 +0100
parents
children 50c6c252d954
line wrap: on
line source

g = sbp.grid.EquidistantGrid(200,(0, 1))
op =sbp.readOperator("d2_4th.txt","h_4th.txt")
Laplace = sbp.Laplace1D(g,1,op)

init(x) = sin(x)
v = sbp.grid.evalOn(g,init)
u = zeros(length(v))

sbp.apply!(Laplace,u,v)

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