Fix typo bug in dimension checking in set_params() for quadratic costs.

Author: rdzman

CHANGES.md

@@ -5,6 +5,9 @@ Change history for MP-Opt-Model
 since version 5.0
 -----------------
 
+#### 10/21/25
+  - Fix typo bug in dimension checking in `set_params()` for quadratic costs.
+
 #### 10/3/25
   - Avoid error displaying `mp.opt_model` object when variable was added
     with a sparse dimension argument.

lib/+mp/sm_quad_cost.m

@@ -523,9 +523,9 @@
             [Mc, Nc] = size(p.c);
             Nk = length(p.k);
             nx = max([MH Mc Nk]);
-            if NH == 1 || (isempty(p.H) && (Nk > 1 || k == 0))
+            if NH == 1 || (isempty(p.H) && (Nk ~= 1 || p.k == 0))
                 %% H is a column vector (cost is element-wise, i.e. a vector)
-                %% OR H is empty and k is either a vector or zero
+                %% OR H is empty and k is either a vector, empty, or zero
                 N = nx;
             else            %% H is a square matrix (cost is a scalar)
                 N = 1;

lib/+mp/sm_quad_cost_legacy.m

@@ -514,9 +514,9 @@
             [Mc, Nc] = size(p.c);
             Nk = length(p.k);
             nx = max([MQ Mc Nk]);
-            if NQ == 1 || (isempty(p.Q) && (Nk > 1 || k == 0))
+            if NQ == 1 || (isempty(p.Q) && (Nk ~= 1 || p.k == 0))
                 %% Q is a column vector (cost is element-wise, i.e. a vector)
-                %% OR Q is empty and k is either a vector or zero
+                %% OR Q is empty and k is either a vector, empty, or zero
                 N = nx;
             else            %% Q is a square matrix (cost is a scalar)
                 N = 1;

lib/mpomver.m

@@ -26,7 +26,7 @@
 v = struct( 'Name',     'MP-Opt-Model', ...
             'Version',  '5.0.1-dev', ...
             'Release',  '', ...
-            'Date',     '25-Sep-2025' );
+            'Date',     '21-Oct-2025' );
 if nargout > 0
     if nargin > 0
         rv = v;