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comparison plotDerivative2d.jl @ 52:0236f8e90567

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author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Fri, 11 Jan 2019 11:55:48 +0100
parents 2a7d0ed7ac10
children 4300a3fbd818
comparison
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51:614b56a017b9 52:0236f8e90567
1 g = sbp.grid.EquidistantGrid((100,75),((0, 0), (2pi, 3/2*pi)))
2 op = sbp.readOperator("d2_4th.txt","h_4th.txt")
3 Laplace = sbp.Laplace2D(g,1,op)
4
5 init(x,y) = sin(x) + cos(y)
6 v = sbp.grid.evalOn(g,init)
7
8 u = zeros(length(v))
9
10 sbp.apply!(Laplace,u,v)
11
12 @show u
13 @show u'*u
14
15 sbp.grid.plotgridfunction(g,u)
16