could any one help me with understanding this code please where w and b are matrices

N=3; 
w1=[w(1:N);w(N+1:2*N)]'; 
b1=w(2*N+1:3*N)'; 
w2=w(3*N:4*N+1); 
b2=w(end);

[madhan ravi]

Mary Abdu's answer moved here for consistency:

The dimention of w1=8x2 , b1=8x1, b2=1x1 , w2=1x8

how i can write the same code if w1=3x52 , b1=3x1, b2=2x1 , w2=2x3

[madhan ravi]

Totally vague...

[John D'Errico]

Out of context, totally uncommented code is just a bunch of characters. It has no "meaning" without that context. So ask the person who wrote the code.

[Walter Roberson]

If N=8 then you could get most sizes you list but w2 will always have more elements than the others so it is not possible to use a single N with that code to get the sizes you are looking for.