Description of creal

 Extracts the real part of x

 function Xreal = creal(X)

 Returns the real part of x. The input can be either a numeric array
 or a struct with fields real and imag.

 See also: manoptADhelp

CROSS-REFERENCE INFORMATION

autograd Apply automatic differentiation to computing the Euclidean gradient

complex_example_AD A basic example that shows how to define the cost funtion for

complextest_AD1 Test AD for a complex optimization problem on a product manifold (struct)

complextest_AD2 Test AD for a complex optimization problem on a power manifold (cell)

complextest_AD3 Test AD for a complex optimization problem on a manifold which is stored

ehesscompute Computes the Euclidean Hessian of the cost function at x along xdot via AD.

cinnerprodgeneral Computes the Euclidean inner product between x and y in the complex case

SOURCE CODE

0001 function Xreal = creal(X)
0002 % Extracts the real part of x
0003 %
0004 % function Xreal = creal(X)
0005 %
0006 % Returns the real part of x. The input can be either a numeric array
0007 % or a struct with fields real and imag.
0008 %
0009 % See also: manoptADhelp
0010 
0011 % This file is part of Manopt: www.manopt.org.
0012 % Original author: Xiaowen Jiang, July. 31, 2021.
0013 % Contributors: Nicolas Boumal
0014 % Change log:
0015 
0016     if iscstruct(X)
0017         Xreal = X.real;
0018     elseif isnumeric(X)
0019         Xreal = real(X);
0020     else
0021         ME = MException('creal:inputError', ...
0022                         'Input does not have the expected format.');
0023         throw(ME);
0024     end
0025 
0026 end

creal

PURPOSE

SYNOPSIS

DESCRIPTION

CROSS-REFERENCE INFORMATION

SOURCE CODE