41 lines
890 B
Matlab
Executable File
41 lines
890 B
Matlab
Executable File
function y = sdpcone(varargin)
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%SDPCONE Defines a semidefinite constraint X>=0
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%
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% Input
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% z : Linear SDPVAR object.
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% h : Linear scalar SDPVAR object
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%
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% Example
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%
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% A standard SDP constraint normally written as [X>=0] is defined with
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% F = sdpcone(X)
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%
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% The typical use though is when we want to define a large number of
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% constraint without overhead. By stacking N matrices of size nxn, sdpcone
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% defines N SDP constraints directly, without any analysis or check for
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% symmetry etc
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%
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% X = sdpvar([5 5 5],[5 5 5]);
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% F = sdpcone([X{:}]);
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%
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% Alternatively
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% F = sdpcone(X{:});
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%
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% See also @SDPVAR/CONE, @SDPVAR/RCONE
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try
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y = [varargin{:}];
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catch
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error('All matrices must have the same dimension.')
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end
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[n,m] = size(y);
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if n == m
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y = y>=0;
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return
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end
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if rem(m,n)
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error('This cannot be N stacked nxn matrices.');
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end
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y.typeflag = 57;
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y=lmi(y); |