Matrix dimensions must agree error

Hey guys.

I wanted to plot a square wave, but i got this error. can you please help me.

Ws=2*pi*60;
tetha=0;
t=0:0.0001:0.1;
v1=1:1:inf;  % it can be v1=1:1:30
N=45;
I=10;
p=2;
K =(2*N*I)/(pi*p);
F1=(K.*0.95).*((1/2).*(cos(Ws.*t-tetha)+cos(Ws.*t+tetha))-cos(Ws.*t).*cos(v1.*tetha).*cos(v1.*120)+sqrt(3).*(sin(Ws.*t).*sin(v1.*tetha).*sin(v1.*120)));
subplot(2,1,1)
plot(F)

[Muhammad Azrul Izmee]

Help! It shows the asterisk error(natrix dim must agree). And error for the line 31 which is C calculation. I hv tried many ways to do it

dn = [1:1:365]; A = 23.45 * sin((2*pi/365)*(dn + 284));

k = [0.5:0.5:2.5]; L = [0:20:80]; B = 15 * (12 - k); C = (sind(A) .* sind(L)) + (cosd(A) .* cosd(L) .* cosd(B));

D = asind(C);

plot(k,D),xlabel('Solar Time (Hour)'),ylabel('Solar Altitude (degree)') grid on

[DGM]

The sizes of the vectors do not match, as the error says.

dn = 1:1:365; % 1x365
A = 23.45 * sin((2*pi/365)*(dn + 284)); % 1x365
k = 0.5:0.5:2.5; % 1x5
L = 0:20:80; % 1x5
B = 15 * (12 - k); % 1x5

C = (sind(A) .* sind(L)) + (cosd(A) .* cosd(L) .* cosd(B));

It's not readily obvious how you intend to make them match. What is the intended output size? Perhaps use linspace() to create the vectors of the desired length.

Answer 1

[KSSV]

Ws=2*pi*60;
tetha=0;
t=0:0.0001:0.1;
v1=linspace(1,30,length(t));  % it can be v1=1:1:30
N=45;
I=10;
p=2;
K =(2*N*I)/(pi*p);
F1=(K.*0.95).*((1/2).*(cos(Ws.*t-tetha)+cos(Ws.*t+tetha))-cos(Ws.*t).*cos(v1.*tetha).*cos(v1.*120)+sqrt(3).*(sin(Ws.*t).*sin(v1.*tetha).*sin(v1.*120)));
subplot(2,1,1)
plot(t,F1)

[Ali Roshanzamir]

Thank you very much for you fast reply.