Unrecognized function or variable

24 views (last 30 days)
So I have made a funtion and an m-file for calling that function but for some reason when I run the my m-file it says that the y is unrecognized below is my function and m-file please help me with this error:
Function:
function B2FrequencyResponse10(E, W, A)
K = 1;
t = (0:1.0:10)';
if (0 <= E) < 1
y = K*A-K*A*exp(-(e)*W*t)*(E/sqrt(1-E^2))*sin(W*sqrt(1-E^2)+cos(W*sqrt(1-E^2)));
if E == 1
y = K*A-K*A*(1+W*t)*exp(-(W)*t);
if E > 1
y = K*A-K*A*((E+sqrt(E^2-1))/2*sqrt(E^2-1)*exp(-(E)+sqrt(E^2-1)*W*t)+cos*(W*qrt(E^2-1)*t));
end
end
end
plot(t, y)
title('Step Response of Second-Order System')
xlabel('time')
ylabel('Output y(t)')
legend('E = 0')
end
m-file:
clear
E = 0;
W = 2;
A = 1;
hold on
B2FrequencyResponse10(E, W, A);

Accepted Answer

Torsten
Torsten on 7 Mar 2022
function B2FrequencyResponse10(E, W, A)
K = 1;
t = (0:1.0:10)';
if E >= 0 & E < 1
y = K*A-K*A*exp(-(E)*W*t)*(E/sqrt(1-E^2))*sin(W*sqrt(1-E^2)+cos(W*sqrt(1-E^2)));
elseif E == 1
y = K*A-K*A*(1+W*t).*exp(-(W)*t);
elseif E > 1
y = K*A-K*A*((E+sqrt(E^2-1))/2*sqrt(E^2-1)*exp(-(E)+sqrt(E^2-1)*W*t)+cos*(W*sqrt(E^2-1)*t));
end
plot(t, y)
title('Step Response of Second-Order System')
xlabel('time')
ylabel('Output y(t)')
legend('E = 0')
end

More Answers (1)

Davide Masiello
Davide Masiello on 7 Mar 2022
clear,clc
E = 0;
W = 2;
A = 1;
t = (0:1.0:10)';
y = B2FrequencyResponse10(t,E,W,A);
plot(t,y)
title('Step Response of Second-Order System')
xlabel('time')
ylabel('Output y(t)')
legend('E = 0')
function y =B2FrequencyResponse10(t,E,W,A)
K = 1;
if E >= 0 && E < 1
y = K*A-K*A*exp(-(E)*W*t)*(E/sqrt(1-E^2))*sin(W*sqrt(1-E^2)+cos(W*sqrt(1-E^2)));
elseif E == 1
y = K*A-K*A*(1+W*t)*exp(-(W)*t);
else
y = K*A-K*A*((E+sqrt(E^2-1))/2*sqrt(E^2-1)*exp(-(E)+sqrt(E^2-1)*W*t)+cos*(W*qrt(E^2-1)*t));
end
end

Categories

Find more on Linear Model Identification in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by