--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ao/sqrt.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,80 @@
+% SQRT computes the square root of the data in the AO.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: SQRT computes the square root of the data in the AO.
+%
+% CALL:        ao_out = sqrt(ao_in);
+%              ao_out = sqrt(ao_in, pl);
+%
+% <a href="matlab:utils.helper.displayMethodInfo('ao', 'sqrt')">Parameters Description</a>
+%
+% VERSION:     $Id: sqrt.m,v 1.42 2011/04/19 18:48:11 ingo Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = sqrt(varargin)
+  
+  % Check if the method was called by another method
+  callerIsMethod = utils.helper.callerIsMethod;
+  
+  % Settings
+  operatorName = 'sqrt';
+  dxFcn = @(x,dx)abs(1./(2*sqrt(abs(x)))).*dx;
+  
+  if callerIsMethod
+    in_names = {};
+  else
+    % Collect input variable names
+    in_names = cell(size(varargin));
+    for ii = 1:nargin,in_names{ii} = inputname(ii);end
+  end
+  
+  copyObjects = nargout>0;
+  [bs, pl] = ao.applymethod(copyObjects, callerIsMethod, in_names, operatorName, dxFcn, @getInfo, @getDefaultPlist, varargin{:});
+  
+  if isa(bs, 'ao')
+    % Set units
+    for ii = 1:numel(bs)
+      app_axis = pl.find('axis');
+      if any('X'==upper(app_axis))
+        bs(ii).data.setXunits(feval('sqrt', bs(ii).data.xunits));
+      end
+      if any('Y'==upper(app_axis))
+        bs(ii).data.setYunits(feval('sqrt', bs(ii).data.yunits));
+      end
+      if any('Z'==upper(app_axis))
+        bs(ii).data.setZunits(feval('sqrt', bs(ii).data.zunits));
+      end
+    end
+  end
+  
+  % set outputs
+  varargout = utils.helper.setoutputs(nargout, bs);
+  
+end
+
+%--------------------------------------------------------------------------
+% Get Info Object
+%--------------------------------------------------------------------------
+function ii = getInfo(varargin)
+  ii = minfo.getInfoAxis(mfilename, @getDefaultPlist, varargin);
+end
+
+%--------------------------------------------------------------------------
+% Get Default Plist
+%--------------------------------------------------------------------------
+
+function plout = getDefaultPlist(set)
+  persistent pl;
+  persistent lastset;
+  if ~exist('pl', 'var') || isempty(pl) || ~strcmp(lastset, set)
+    pl = buildplist(set);
+    lastset = set;
+  end
+  plout = pl;
+end
+
+function plout = buildplist(varargin)
+  plout = plist.getDefaultAxisPlist(varargin{:});
+end
+