feat: enhance input parsing in Gradio interface to support semicolon-separated numbers

maths/operations_research/simplex_solver_with_steps.py

@@ -167,8 +167,8 @@ def simplex_solver_with_steps(c, A, b, bounds):
 # Gradio interface
 
 def parse_input_list(s):
-    # Helper to parse comma/space separated numbers
-    return [float(x) for x in s.replace(',', ' ').split() if x.strip()]
+    # Helper to parse comma/space/semicolon separated numbers
+    return [float(x) for x in s.replace(';', ' ').replace(',', ' ').split() if x.strip()]
 
 def parse_matrix(s):
     # Helper to parse matrix input as rows separated by newlines, columns by comma/space