--- a/scripts/control/base/rldemo.m
+++ b/scripts/control/base/rldemo.m
@@ -44,7 +44,7 @@
       clc
       disp("Display continuous system's open loop poles and zeros (pzmap)\n");
       disp("Example #1, Consider the following continuous transfer function:");
-      cmd = "sys1 = tf2sys([1.5, 18.5, 6], [1, 4, 155, 302, 5050]);";
+      cmd = "sys1 = tf([1.5, 18.5, 6], [1, 4, 155, 302, 5050]);";
       disp(cmd);
       eval(cmd);
       cmd ="sysout(sys1);";
@@ -61,7 +61,7 @@
 
       clc
       disp("Example #2, Consider the following set of poles and zeros:");
-      cmd = "sys2 = zp2sys([-1, 5, -23],[-1, -10, -7+5i, -7-5i],5);";
+      cmd = "sys2 = zp([-1, 5, -23],[-1, -10, -7+5i, -7-5i],5);";
       disp(cmd);
       eval(cmd);
       cmd = "sysout(sys2);";
@@ -76,7 +76,7 @@
 
       clc
       disp("Example #3, Consider the following state space system:\n");
-      cmd = "sys3=ss2sys([0, 1; -10, -11], [0; 1], [0, -2], 1);";
+      cmd = "sys3=ss([0, 1; -10, -11], [0; 1], [0, -2], 1);";
       disp(cmd);
       eval(cmd);
       cmd = "sysout(sys3);";
@@ -105,7 +105,7 @@
       cmd = "Tsam = 1;";
       run_cmd;
       disp("Example #1, Consider the following discrete transfer function:");
-      cmd = "sys1 = tf2sys([1.05, -0.09048], [1, -2, 1],Tsam);";
+      cmd = "sys1 = tf([1.05, -0.09048], [1, -2, 1],Tsam);";
       disp(cmd);
       eval(cmd);
       cmd ="sysout(sys1);";
@@ -122,7 +122,7 @@
 
       clc
       disp("Example #2, Consider the following set of discrete poles and zeros:");
-      cmd = "sys2 = zp2sys(-0.717, [1, -0.368], 3.68, Tsam);";
+      cmd = "sys2 = zp(-0.717, [1, -0.368], 3.68, Tsam);";
       disp(cmd);
       eval(cmd);
       cmd = "sysout(sys2);";
@@ -137,7 +137,7 @@
 
       clc
       disp("Example #3, Consider the following discrete state space system:\n");
-      cmd = "sys3=ss2sys([1, 0.0952; 0, 0.905], [0.00484; 0.0952], [1, 0], 0, Tsam);";
+      cmd = "sys3=ss([1, 0.0952; 0, 0.905], [0.00484; 0.0952], [1, 0], 0, Tsam);";
       disp(cmd);
       eval(cmd);
       cmd = "sysout(sys3);";
@@ -163,7 +163,7 @@
       clc
       disp("Display root locus of a continuous SISO system (rlocus)\n")
       disp("Example #1, Consider the following continuous transfer function:");
-      cmd = "sys1 = tf2sys([1.5, 18.5, 6],[1, 4, 155, 302, 5050]);";
+      cmd = "sys1 = tf([1.5, 18.5, 6],[1, 4, 155, 302, 5050]);";
       disp(cmd);
       eval(cmd);
       cmd ="sysout(sys1);";
@@ -186,7 +186,7 @@
 
       clc
       disp("Example #2, Consider the following set of poles and zeros:");
-      cmd = "sys2 = zp2sys([],[0, -20, -2, -0.1],5);";
+      cmd = "sys2 = zp([],[0, -20, -2, -0.1],5);";
       disp(cmd);
       eval(cmd);
       cmd = "sysout(sys2);";
@@ -201,7 +201,7 @@
 
       clc
       disp("Example #3, Consider the following state space system:\n");
-      cmd = "sys3=ss2sys([0, 1; -10, -11], [0; 1], [0, -2], 0);";
+      cmd = "sys3=ss([0, 1; -10, -11], [0; 1], [0, -2], 0);";
       disp(cmd);
       eval(cmd);
       cmd = "sysout(sys3);";
@@ -233,7 +233,7 @@
       cmd = "Tsam = 1;";
       run_cmd;
       disp("Example #1, Consider the following discrete transfer function:");
-      cmd = "sys1 = tf2sys([1.05, -0.09048],[1, -2, 1],Tsam);";
+      cmd = "sys1 = tf([1.05, -0.09048],[1, -2, 1],Tsam);";
       disp(cmd);
       eval(cmd);
       cmd ="sysout(sys1);";
@@ -256,7 +256,7 @@
 
       clc
       disp("Example #2, Consider the following set of discrete poles and zeros:");
-      cmd = "sys2 = zp2sys(-0.717, [1, -0.368], 3.68, Tsam);";
+      cmd = "sys2 = zp(-0.717, [1, -0.368], 3.68, Tsam);";
       disp(cmd);
       eval(cmd);
       cmd = "sysout(sys2);";
@@ -273,7 +273,7 @@
 
       clc
       disp("Example #3, Consider the following discrete state space system:\n");
-      cmd = "sys3=ss2sys([1, 0.0952; 0, 0.905], [0.00484; 0.0952], [1, 0], 0, Tsam);";
+      cmd = "sys3=ss([1, 0.0952; 0, 0.905], [0.00484; 0.0952], [1, 0], 0, Tsam);";
       disp(cmd);
       eval(cmd);
       cmd = "sysout(sys3);";