computing matrix in for loop

hi friends ı want to calculate matrix of ZMN in for loop , it must have values like Z11,Z12,...Z55, but my code just calculate Z11 value . after that ı defined matrix as VM (1x5) and [VM] = [Z]*[IN] how can ı find IN matrix? How can ı do this ? ı hope you help me, ı desing this below code:

l=1;
a=0.001;
V=1;
delta=l/5;

for n = 1:5
    for m = 1:5
        dminus(m,n) = l-delta;
        dplus(m,n) = l+ delta;
        
        if (m==n) ZMN=2*log (delta+ (sqrt( a*a +delta*delta))/a);
        elseif (2>= abs(m-n)) ZMN=log ( (dplus+ sqrt(dplus*dplus +a*a))/ (dminus +sqrt(dminus*dminus+a*a)));
        else log(dplus/dminus);
            
        end
end
end  
A = [1.11*(10^-10),1.11*(10^-10),1.11*(10^-10),1.11*(10^-10),1.11*(10^-10)];
    VM=A.';

Answer 1

[VBBV]

l=1;
a=0.001;
V=1;
delta=l/5;

for n = 1:5
	for m = 1:5
		dminus(m,n) = l-delta;
		dplus(m,n) = l+ delta;
		
		if (m==n)
			Z(m,n)=2*log (delta+ (sqrt( a*a +delta*delta))/a);
		elseif (2>= abs(m-n))
			Z(m,n)=log ( (dplus(m,n)+ sqrt(dplus(m,n)*dplus(m,n) +a*a))/ (dminus(m,n) +sqrt(dminus(m,n)*dminus(m,n)+a*a)));
		else
			Z(m,n) = log(dplus(m,n)/dminus(m,n));
			
		end
	end
end

[astronot]

thank you can ı ask anthing else ? after that ı defined matrix as VM (1x5) and [VM] = [Z]*[IN] how can ı find IN matrix?

 A = [1.11*(10^-10),1.11*(10^-10),1.11*(10^-10),1.11*(10^-10),1.11*(10^-10)];
    VM=A.';

[VBBV]

IN = Z\VM