Mercurial > repos > public > sbplib_julia
comparison plotDerivative.jl @ 45:56722ba36604
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 |
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| 44:f03e50edd60f | 45:56722ba36604 |
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| 1 g = sbp.grid.EquidistantGrid(200,(0, 1)) | |
| 2 op =sbp.readOperator("d2_4th.txt","h_4th.txt") | |
| 3 Laplace = sbp.Laplace1D(g,1,op) | |
| 4 | |
| 5 init(x) = sin(x) | |
| 6 v = sbp.grid.evalOn(g,init) | |
| 7 u = zeros(length(v)) | |
| 8 | |
| 9 sbp.apply!(Laplace,u,v) | |
| 10 | |
| 11 @show u | |
| 12 sbp.grid.plotgridfunction(g,u) | |
| 13 |