[iss-235]

Squashed commit of the following:

commit 9c56ba9
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 8 09:51:59 2023 -0300

    Updated doc.

commit e84a7d3
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 8 09:51:46 2023 -0300

    Remove dead code.

commit a0bfe18
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Tue Sep 5 15:50:29 2023 -0300

    Added engine system tests.

commit f46cb9e
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Tue Sep 5 15:50:01 2023 -0300

    Added engine mliqss system tests.

commit 5939f60
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Tue Sep 5 14:59:12 2023 -0300

    Added mliqss continuous system tests.

commit 493791c
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Tue Sep 5 14:58:32 2023 -0300

    Added GT test files.

commit 089183a
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Tue Sep 5 14:57:49 2023 -0300

    Fixed code style.

commit ff7f663
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 1 14:12:10 2023 -0300

    Update vscode settings.

commit dbfeb48
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 1 14:11:53 2023 -0300

    Updated mLIQSS3 method.

commit d5917d9
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 1 14:11:39 2023 -0300

    Updated mLIQSS2 method.

commit 9e600d3
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 1 14:11:15 2023 -0300

    Updated mLIQSS method.

commit f3303b0
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 1 14:10:52 2023 -0300

    Updated dq in liqss methods.

commit f8d9e8b
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 1 14:10:23 2023 -0300

    Modified mLIQSS change and next quantizer fields.

commit 40cd00e
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Fri Sep 1 14:09:51 2023 -0300

    Update x time after updateQuantizedState needed for mliqss methods.

src/engine/qss/methods/liqss.c

@@ -35,7 +35,6 @@ void LIQSS_init(QA_quantizer quantizer, QSS_data simData, QSS_time simTime)
 {
   int i;
   int states = simData->states;
-  quantizer->state->dq = (double *)malloc(states * sizeof(double));
   quantizer->state->oldDx = (double *)malloc(states * sizeof(double));
   quantizer->state->qAux = (double *)malloc(states * sizeof(double));
   quantizer->state->a = (double *)malloc(states * sizeof(double));
@@ -48,7 +47,6 @@ void LIQSS_init(QA_quantizer quantizer, QSS_data simData, QSS_time simTime)
     quantizer->state->oldDx[i] = 0;
     quantizer->state->a[i] = 0;
     quantizer->state->u0[i] = 0;
-    quantizer->state->dq[i] = 0;
     quantizer->state->lt[i] = simData->it;
   }
   quantizer->state->simTime = &simTime->time;
@@ -150,27 +148,27 @@ void LIQSS_updateQuantizedState(QA_quantizer quantizer, int var, double *q, doub
   double dx;
   double *u = quantizer->state->u0;
   double *a = quantizer->state->a;
-  double *dq = quantizer->state->dq;
+  double dq;
   quantizer->state->qAux[var] = q[cf0];
   quantizer->state->oldDx[var] = x[cf1];
   quantizer->state->lt[var] = *(quantizer->state->simTime);
   q[cf0] = x[cf0];
   if (x[cf1] > 0) {
     dx = u[var] + (q[cf0] + lqu[var]) * a[var];
     if (dx >= 0) {
-      dq[var] = lqu[var];
+      dq = lqu[var];
     } else if (dx < 0) {
-      dq[var] = -u[var] / a[var] - q[cf0];
+      dq = -u[var] / a[var] - q[cf0];
     }
   } else {
     dx = u[var] + (q[cf0] - lqu[var]) * a[var];
     if (dx <= 0) {
-      dq[var] = -lqu[var];
+      dq = -lqu[var];
     } else if (dx > 0) {
-      dq[var] = -u[var] / a[var] - q[cf0];
+      dq = -u[var] / a[var] - q[cf0];
     }
   }
-  if (dq[var] > 2 * lqu[var]) dq[var] = 2 * lqu[var];
-  if (dq[var] < -2 * lqu[var]) dq[var] = -2 * lqu[var];
-  q[cf0] += dq[var];
+  if (dq > 2 * lqu[var]) dq = 2 * lqu[var];
+  if (dq < -2 * lqu[var]) dq = -2 * lqu[var];
+  q[cf0] += dq;
 }