What does RHS/LHS mean?

Development Feature discussions
1

According to this wiki page synfig.org/wiki/Convert#Add,

RHL = Right Hand Side ?
LHS = Left Hand Side ?

But I still understand what is the meaning of RHS or LHS, Could anyone help? Thanks.

2

Yes, Right hand side and left hand side.
I don’t know if it’s any way significant other than just a way to differentiate between the two parameters.

3

For the add valuenode, there’s not any difference between RHS and LHS. It’s used there for consistency with some other conversion types, such as subtract. Subtract is “LHS - RHS”, where LHS is on the left of the minus sign and RHS is on the right.