Mercurial > repos > public > sbplib
annotate stripeMatrixPeriodic.m @ 905:459eeb99130f feature/utux2D
Include type as (optional) input parameter in the interface method of all schemes.
author | Martin Almquist <malmquist@stanford.edu> |
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date | Thu, 22 Nov 2018 22:03:44 -0800 |
parents | 7368affc8f78 |
children | bbf303c1f0cf |
rev | line source |
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681
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
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1 % Creates a periodic discretization matrix of size n x n |
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
2 % with the values of val on the diagonals diag. |
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
3 % A = stripeMatrix(val,diags,n) |
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
4 function A = stripeMatrixPeriodic(val,diags,n) |
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
5 |
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
6 D = ones(n,1)*val; |
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
7 A = spdiagsVariablePeriodic(D,diags); |
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
8 end |