Changed implementation of function handles for constant symbolics in quantity.Symbolic.

+quantity/Discrete.m

@@ -170,7 +170,7 @@ classdef  (InferiorClasses = {?quantity.Symbolic}) Discrete ...
 			end
 			valueDiscrete = obj.valueDiscrete;
 		end
-		
+
 		%-------------------
 		% --- converters ---
 		%-------------------
@@ -583,20 +583,20 @@ classdef  (InferiorClasses = {?quantity.Symbolic}) Discrete ...
 			end
 		end
 		
-		function obj = sort(obj, varargin)
+		function newObj = sort(obj, varargin)
 			%SORT sorts the grid of the object in a desired order
 			% obj = sortGrid(obj) sorts the grid in alphabetical order.
 			% obj = sort(obj, 'descend') sorts the grid in descending
 			% alphabetical order.
-						
+			newObj = obj.copy();
 			% only sort the grids if there is something to sort
-			if ~isempty(obj) && obj(1).nargin > 1
+			if ~isempty(newObj) && newObj(1).nargin > 1
 				
-				[sortedDomain, I] = obj(1).domain.sort(varargin{:});
-				[obj.domain] = deal(sortedDomain);
+				[sortedDomain, I] = newObj(1).domain.sort(varargin{:});
+				[newObj.domain] = deal(sortedDomain);
 				
-				for k = 1:numel(obj)
-					obj(k).valueDiscrete = permute(obj(k).valueDiscrete, I);
+				for k = 1:numel(newObj)
+					newObj(k).valueDiscrete = permute(obj(k).valueDiscrete, I);
 				end
 			end
 		end% sort()

+quantity/Function.m

@@ -113,7 +113,7 @@ classdef Function < quantity.Discrete
 			% number of input values.
 			n = numel(obj(1).grid);
 		end % nargin()
-	end
+	end % methods
 	
 	% -------------
 	% --- Mathe ---

+quantity/Symbolic.m

@@ -41,7 +41,6 @@ classdef Symbolic < quantity.Function
 				
 				fun = cell(S{:});
 				symb = cell(S{:});
-				
 				for k = 1:numel(valueContinuous)
 					
 					if iscell(valueContinuous)
@@ -849,12 +848,13 @@ classdef Symbolic < quantity.Function
 			end
 		end % getVariable()
 		
-		function f = setValueContinuous(f, symVar)
+		function [f, argList] = setValueContinuous(f, symVar)
 			% converts symVar into a matlabFunction.
+			argList = string(symVar);
 			if isa(f, 'sym')			
 				if isempty(symvar(f))
 					fDouble = double(f);
-					f = @(varargin) fDouble + quantity.Function.zero(varargin{:});
+					f = eval("@(" + argList + ") fDouble + quantity.Function.zero(varargin{:})");
 				else
 					if iscell( symVar )
 						symVar = [symVar{:}];
@@ -865,4 +865,4 @@ classdef Symbolic < quantity.Function
 			end
 		end % setValueContinuous()
 	end % methods (Static, Access = protected)
-end % classdef
\ No newline at end of file
+end % classdef

+unittests/+quantity/testSymbolic.m

@@ -8,11 +8,18 @@ function testValueContinuousBug(tc)
 z = quantity.Domain("z", linspace(0, 1, 7));
 zeta = quantity.Domain("zeta", linspace(0, 1, 5));
 A = quantity.Symbolic(sin(sym("z") * pi), z);
-B = [0*z.Symbolic + zeta.Symbolic, A + 0*zeta.Symbolic; ...
+B1 = [0*z.Symbolic + zeta.Symbolic, A + 0*zeta.Symbolic; ...
 	z.Symbolic+zeta.Symbolic, A * subs(A, "z", "zeta")];
 B2 = [zeta.Symbolic + 0*z.Symbolic, A + 0*zeta.Symbolic; ...
 	z.Symbolic+zeta.Symbolic, A * subs(A, "z", "zeta")];
-tc.verifyEqual(B.on([z, zeta]), B2.on([z, zeta]));
+tc.verifyEqual(B1.on([z, zeta]), B2.on([z, zeta]));
+
+C1 = [0*z.Symbolic + zeta.Symbolic, A + 0*zeta.Symbolic];
+c1 = zeta.Symbolic + 0*z.Symbolic;
+c2 = A + 0*zeta.Symbolic;
+C2 = [c1, c2];
+tc.verifyEqual(C1.on([z, zeta]), C2.on([z, zeta]));
+
 % TODO: fix this error! See issue #41
 % this problem is maybe caused as input arguments of B2(1).valueContinuous is somehow ordered
 % differently compared to B2(2:4).valueContinuous or all B(:).valueContinuous,