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comparison plotDerivative.jl @ 54:4300a3fbd818

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switch grid to Grid in diffOp
author Ylva Rydin <ylva.rydin@telia.com>
date Mon, 14 Jan 2019 16:30:52 +0100
parents 614b56a017b9
children 27a8d3021a1c 81d9510cb2d0
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53:8c6db1f6d8e0 54:4300a3fbd818
1 g = sbp.grid.EquidistantGrid(200,(0, 2pi)) 1 g = sbp.Grid.EquidistantGrid(200,(0, 2pi))
2 op =sbp.readOperator("d2_4th.txt","h_4th.txt") 2 op =sbp.readOperator("d2_4th.txt","h_4th.txt")
3 Laplace = sbp.Laplace1D(g,1,op) 3 Laplace = sbp.Laplace1D(g,1,op)
4 4
5 init(x) = sin(x) 5 init(x) = sin(x)
6 v = sbp.Grid.evalOn(g,init) 6 v = sbp.Grid.evalOn(g,init)
7 u = zeros(length(v)) 7 u = zeros(length(v))
8 8
9 sbp.apply!(Laplace,u,v) 9 sbp.apply!(Laplace,u,v)
10 10
11 @show u 11 @show u
12 sbp.grid.plotgridfunction(g,u) 12 sbp.Grid.plotgridfunction(g,u)