Simple question about feeders

[EP_explorer]

I have a Rule

C=(A+B)/2;

How I can write a feeder for this expression?

[kpk]

A=>C
B=>C

[Andy Key]

Or if A, B and C are all references to elements in the same dimension you could create C as a consolidation of A and B both with weightings of 0.5. Your calculation is faster and no need for the rule or feeder.