Add numbers into legend with for loop

clc;

x=linspace(-180,180,200);

xr=x*(pi/180);

for (i=1:4)

subplot(2,2,i)

t=cos(i*xr);

plot(x,t)

axis([-180 180 -1 1]);

grid on;

legend('cos(i*xr);

end

----

This is my code. I wonder if i could write i inside of legend like;

i=1 i want cos(1*xr)

i=2 i want cos(2*xr) ...

How can i do that ?

Answer 1

[madhan ravi]

legend(sprintf('cos(%d*xr)',i))