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annotate diags.m @ 1031:2ef20d00b386 feature/advectionRV

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For easier comparison, return both the first order and residual viscosity when evaluating the residual. Add the first order and residual viscosity to the state of the RungekuttaRV time steppers
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Thu, 17 Jan 2019 10:25:06 +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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