Bit wise operation of And and XOR together

f10 = 1 + v2 + x2 + x2v2 + x2v3 + x3v2 + x2w2 + x2w3 + x3w2

these are the expressions and I want to perform xor and AND operation on this for 2^8 combination in binary

And if this not correct method then how can I write this expression such that it gives 1bit output as either 0 or 1 for 2^8 combination

function a=Share1(u2,v2,w2,x2,u3,v3,w3,x3) 
a=bitxor(1,v2,x2,bitxor(bitand(x2,v2),bitand(x2,v3),bitand(x3,v2),bitand(x2,w2),bitand(x2,w3),bitand(x3,w2)));
end

But it is not working.

Please someone suggest how can I write this qudratic equation using MATLAB or where I am wrong

[dpb]

Can you explain what the expression as written means?

Mathematically it looks like a simple sum of products of three variables [v,w,x] for two conditions.

Why then write a function with four variables [u,v,w,x] where it appears they correspond to the single/product terms and the result would just be the sum (plus the constant 1) of course?

Certainly seems no reason for bitwise operations here.

[Dhruv Bhatnagar]

these two are the expressions and I want to perform xor and AND operation on this for 2^8 combination in binary which results in 1 bit output as either 0 or 1. And then comparing result that (number of 0 == number of 1) or not.

And if this not correct method then how can I write this expression such that it gives 1bit output as either 0 or 1 for 2^8 combination

Thank You.

Answer 1

[Setsuna Yuuki.]

The binary operation is between two values logics or values of 0's and 1's. In your code some logics operation are done between three logics values.

For example:

bitxor(bitand(x2,w2),bitand(x2,w3),bitand(x3,w2)) % bitxor(l1,l2,l3)
bitxor(bitxor(bitand(x2,w2),bitand(x2,w3)),bitand(x3,w2)) % bitxor(bitxor(l1,l2),l3)

[Dhruv Bhatnagar]

if it used for 256 inputs then how to apply

Answer 2

[Bruno Luong]

Z=quad(0,1,1,0,1,0,1,1)

function F10 = quad(u2,v2,w2,x2,u3,v3,w3,x3)
% note: u2 and u3 not used anywhere
F10=1+v2+x2+x2*v2+x2*v3+x3*v2+x2*w2+x2*w3+x3*w2;
F10=mod(F10,2);
end

[Dhruv Bhatnagar]

It is not giving output I edit my question back if you can suggest something based on that then please

Thank You

[Bruno Luong]

"It is not giving output "

It gives 0 for me.

>> testquad

Z =

     0