Create parametric block diagonal matrix
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how can create parametric block diagonal matrix in Matlab
for i=1:2
H = blkdiag(sym('H%d',num2str(i),[1 1]));
end
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Answers (1)
Star Strider
on 15 Feb 2017
See if this does what you want:
h = sym('H%d',[1 2]); % Create Vector
h = mat2cell(h, 1, [1 1]); % Convert Vector To Cell Array Of Individual Elements (Comma-Separated List)
H = blkdiag(h{:}) % Desired Result
H =
[ H1, 0]
[ 0, H2]
The blkdiag function wants a comma-separated list, and a cell array provides that. This code creates your initial vector (as I believe you want it), then converts it to a cell array, then uses it to create your block-diagonal matrix.
If this is not the result you want, please describe in detail what you want your desired result to be.
2 Comments
Star Strider
on 15 Feb 2017
This seems to do what you want:
h = sym('H%d',[1 3]); % Create Vector
h = mat2cell(h, 1, [1 2]); % Convert To Cell Array
H = blkdiag(h{:}).' % Desired Result (Simple — Not Complex Conjugate — Transpose)
H =
[ H1, 0]
[ 0, H2]
[ 0, H3]
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