32 lines
783 B
Matlab
Executable File
32 lines
783 B
Matlab
Executable File
function varargout = tanh(varargin)
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%TANH (overloaded)
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switch class(varargin{1})
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case 'double'
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error('Overloaded SDPVAR/TANH CALLED WITH DOUBLE. Report error')
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case 'sdpvar'
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varargout{1} = InstantiateElementWise(mfilename,varargin{:});
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case 'char'
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operator = struct('convexity','none','monotonicity','increasing','definiteness','none','model','callback');
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operator.convexhull = [];
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operator.bounds = @bounds;
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operator.derivative = @(x)(1-tanh(x).^2);
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operator.range = [-1 1];
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varargout{1} = [];
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varargout{2} = operator;
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varargout{3} = varargin{3};
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otherwise
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error('SDPVAR/TANH called with CHAR argument?');
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end
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function [L,U] = bounds(xL,xU)
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L = cosh(xL);
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U = cosh(xU);
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