Factorio Forums

The suggestion would be a third button in the decider combinator, it adds the option to output the inverted inputcount to the existing output 1 and output inputcount.

- Less clicks for a "inverter combinator" (arithmetic combinator with *-1 is 7 clicks, couple of "E" pressed and typing delete + "-1") = super annoying
- Eliminates limitations I encountered when building my factory control unit (I could half the combinator count while keeping the calculating speed)

It is not a worldchanger but certainly helps

And most important: It is symmetrical.

If an operation is useful, it is very likely that it's inverse is also useful. Combinators kinda lack in those regards a bit:

• No >= and <= conditionals (inverse of < and >)
• No negated outputs (as above)
• No inverted filters (for inserters)

All of those were requested at some point . Some of might already be implemented for 0.15, though.