Matrix dimension must agree

I wanna generate multiple carrier bt m getting error at line c(i,:)=.......

nos=4;
Tb=1; 
fc=[10 30];
t=0:Tb/100:1;
A=5
for i=1:nos
    c(i,:)=A*sin(2*pi*fc(i,:).*t);
end

Answer 1

[Star Strider]

Replace your ‘fc’ assignment with:

fc = linspace(10, 30, nos);

so your code becomes:

nos=4;
Tb=1; 
fc = linspace(10, 30, nos);
t=0:Tb/100:1;
A=5;
for i=1:nos
    c(i,:)=A*sin(2*pi*fc(i)*t);
end

See if that does what you want.

[sashish acharya]

thnx for ur answer.But m not getting perfect sin wave. can u plz help again

[Star Strider]

The sine waves are there. If you want them with better resolution, sample them more frequently, for example with:

t=0:Tb/500:1;

Answer 2

[Azzi Abdelmalek]

There are many mistakes in your code

fc=[10 30];

the size of fc is [1 2], then fc(i,:) is not defined for i=2. also you are writing fc.*t, while fc and t have different sizes

[sashish acharya]

Sir can u plz provide correct program as an example.

[Azzi Abdelmalek]

It depends on what you want

[sashish acharya]

i want to generate 4 different carrier signal.