naides

October 16th, 2002, 22:31

Hi mike:

There is a thread in the newbie forum that may fall in your area of expertise

http://www.woodmann.net/forum/showthread.php?s=&threadid=3990

It boils down to solving for x the following equation

x + a = x xor b xor c

where a, b, c are known and x is unknown. We could replace b xor c = d

being d another known quantity

giving:

x + a = x xor d

Does this equation have an analytical solution?

I am not sure, but if we could express

x + a

in terms of logic operations, xor, and, not, even if they are valid only in a finite numeric space, or conversely, express

x xor d

in terms of an algebraic formula the equation could be solvable.

Is it possible?

Thanks for your comments

There is a thread in the newbie forum that may fall in your area of expertise

http://www.woodmann.net/forum/showthread.php?s=&threadid=3990

It boils down to solving for x the following equation

x + a = x xor b xor c

where a, b, c are known and x is unknown. We could replace b xor c = d

being d another known quantity

giving:

x + a = x xor d

Does this equation have an analytical solution?

I am not sure, but if we could express

x + a

in terms of logic operations, xor, and, not, even if they are valid only in a finite numeric space, or conversely, express

x xor d

in terms of an algebraic formula the equation could be solvable.

Is it possible?

Thanks for your comments