Mercurial > repos > public > sbplib
annotate stripeMatrixPeriodic.m @ 984:0585a2ee7ee7 feature/timesteppers
Inline the rk.rungekutta_4 function.
author | Jonatan Werpers <jonatan@werpers.com> |
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date | Tue, 08 Jan 2019 12:19:33 +0100 |
parents | bbf303c1f0cf |
children |
rev | line source |
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801
bbf303c1f0cf
Rename spdaigsVariablePeriodic spdiagsPeriodic
Jonatan Werpers <jonatan@werpers.com>
parents:
681
diff
changeset
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1 % Creates a periodic discretization matrix of size n x n |
681
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; |
801
bbf303c1f0cf
Rename spdaigsVariablePeriodic spdiagsPeriodic
Jonatan Werpers <jonatan@werpers.com>
parents:
681
diff
changeset
|
7 A = spdiagsPeriodic(D,diags); |
681
7368affc8f78
Add D2 variable periodic for second order.
Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
8 end |