why error is coming "undefined function or variable"?

i am trying to declare one qudratic equation but getting this error in R2017b and R2020b also

M1=bit3xor(u2,w2,bitxor(bit3xor(bitand(v2,d2))));

Error: Undefined function or variable 'bit3xor'.

Please someone help me in removing this error.

Answer 1

[KALYAN ACHARJYA]

There is no such "bit3xor" inbuilt function in MATLAB. It might be custom function, if so please keep the bit3xor.m file in the same working directory.

[Dhruv Bhatnagar]

Thank You Sir.

But Sir I made change and used like this for f10 equation but still operation is not working What is going wrong in this.

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

This qudratic equation I want to evaluate using Matlab so I wrote like this.

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

function F10 = quad(u2,v2,w2,x2,u3,v3,w3,x3)

F10=bitxor(1,v2,x2,bitxor(bitxor(bitand(x2,v2),bitand(x2,v3),bitand(x3,v2)),bitxor(bitand(x2,w2),bitand(x2,w3),bitand(x3,w2))));

end