For loop execution.

I am trying to compute the code shown below. but keep getting error. I will be happy if someone could please look at the code

clear all;
N =  200;                      
Fs = 50;                        
Fo1 = 10;                         
Fo2 = 60;                          
ts = 1/Fs;                       
T = (N - 1)* ts;                

A1 = 2;                         
A2 = 4;                         
t = 0:ts:T;                     

B = [0.1:0.1:0.9, 1:0.5:10];

X = zeros (length(B),N);
for m = 1: length(B)                   
    
   if (B(m) >= 0.1 & B(m) < 1)
        
       for d = 1: N                     
       
        X(m,d)  = A1*sin(2*pi.*(Fo1./B(m)).* t(d)).*( t >= 0.1 & t <= 2.5) + ...
                   A2* cos(2*pi.*(Fo2./B(m)).* t(d)).*(t>=2.6 & t <4.9);
       end 
       
   elseif (B(m) >= 1)
       
       for d = 1: N                      
       
        Sn(m,d)  = A1*sin(2*pi.*(Fo1./B(m)).* t(d)).*( t >= 0.1 & t <= 2.5) + ...
                   A2* cos(2*pi.*(Fo2./B(m)).* t(d)).*(t>=2.6 & t <4.9);
       end 
       
   end


end

Answer 1

[William]

I think it may be the 4 clauses that read like (t >= 0.1 & t <= 2.5). Shouldn't these say (t(d) >= 0.1 & t(d) <= 2.5)?

[Telema Harry]

Problem solved. Thank you so much.