Undefined function or variable 't'.

1. Hi I want to displacement time graph. But I couldn't define the t function. How can I solve the problem by putting the clock symbol on the simulink diagram

clear all
clc


m = 1;
k1 = 10;
k2 = 15;
k = k1 + k2;
b1 = 20;
b2 = 25;
b = b1 + b2;
dtc = 0.1;
sim('sm')

figure(1);
plot(t,x);
title('Displacement,m');
grid
xlabel('t,s');
ylabel('x,m');

Answer 1

[Fangjun Jiang]

What is your "x"? Is it logged through "Data Import/Export"? Press Ctrl+E to open the configuration parameter, click "Data Import/Export", check "Time" and specify it as "t".