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annotate diags.m @ 1016:4b42999874c0 feature/advectionRV

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Add lower level for boot-strapping to RungeKuttaExteriorRV - Add a lower level to RungeKuttaExteriorRV for which bootstrapping starts, e.g start bootstrapping from time level 3 using a 3rd order BDF - Clean up ResidualViscosity
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Fri, 07 Dec 2018 13:11:53 +0100
parents 0b87863cb29c
children
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5eb312dfe2ab Add full matrix equivalent of spdiags
Jonatan Werpers <jonatan@werpers.com>
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1 function A = diags(B,d,m,n)
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2 assert(size(B,1) == m);
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4 A = repmat(B(:,1)*0, [1, n]);
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6 for i = 1:size(B,2)
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7 A(:,d(i)+ (1:m)) = A(:,d(i)+ (1:m)) + diag(B(:,i));
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