some minor bug fixes

+quantity/Symbolic.m

@@ -597,7 +597,7 @@ classdef Symbolic < quantity.Function
 			else
 				try
 					% try to compute the symbolic integration
-					I = quantity.Symbolic(int(obj.sym, domainName.name, lowerBound, upperBound), obj(1).domain);
+					I = quantity.Symbolic(int(obj.sym, domainName.name), obj(1).domain);
 					
 					C = subs(I, domainName.name, upperBound) - ...
 						subs(I, domainName.name, lowerBound);

+signals/PolynomialOperator.m

@@ -500,7 +500,7 @@ classdef (InferiorClasses = {?quantity.Discrete, ?quantity.Function, ?quantity.S
 				% compute the integration of the fundamental matrix with the temporal
 				% values:
 				%   Phi_k(z) = int_0_z Phi_0(z, zeta) * M(zeta) d_zeta
-				Phi(:, :, k) = cumInt(F0 * sumPhi.subs("z", "zeta"), "zeta", z(1), "z");
+				Phi(:, :, k) = cumInt(F0 * sumPhi.subs("z", "zeta"), "zeta", z(1).lower, "z");
 			end
 			%
 			pbar.stop();

+unittests/+quantity/testSymbolic.m

@@ -392,7 +392,6 @@ end
 
 function testCumInt(testCase)
 tGrid = linspace(pi, 1.1*pi, 51)';
-sGrid = tGrid;
 s = sym("s");
 t = sym("t");
 
@@ -402,11 +401,11 @@ b = [ s; 2*s];
 %% int_0_t a(t,s) * b(s) ds
 % compute symbolic version of the volterra integral
 myDomain(1) = quantity.Domain("t", tGrid);
-myDomain(2) = quantity.Domain("s", sGrid);
+myDomain(2) = quantity.Domain("s", tGrid);
 integrandSymbolic = quantity.Symbolic(a*b, myDomain);
 integrandDiscrete = quantity.Discrete(integrandSymbolic);
 V = cumInt(integrandSymbolic, "s", tGrid(1), "t");
-f = cumInt(integrandDiscrete, "s", sGrid(1), "t");
+f = cumInt(integrandDiscrete, "s", tGrid(1), "t");
 
 testCase.verifyEqual(V.on(), f.on(), "AbsTol", 1e-5);
 

+unittests/+signals/testPolynomialOperator.m

@@ -114,7 +114,8 @@ A1 = quantity.Symbolic([0 1; 0 0], z);
 A = signals.PolynomialOperator({A0, A1});
 B = signals.PolynomialOperator(quantity.Symbolic([-1 -1; 0 0], z));
 
-[Phi1, Psi1] = A.stateTransitionMatrix("N", N, "B", B);
+[Phi1, F0] = A.stateTransitionMatrix("N", N);
+Psi1 = A.inputTransitionMatrix(B, F0, "N", N);
 [Phi2, Psi2] = A.stateTransitionMatrixByOdeSystem("N", N, "B", B);
 
 testCase.verifyEqual(double(Phi1), double(Phi2), 'AbsTol', 1e-2);