Purpose of Invert Inputs

[ArmoredRodent]

Not an issue, but what is the purpose of Invert Inputs on NAND, AND, NOR and OR gates? I've been doing this a while and I am confused of the purpose. In principle, I could see inverting one input to eliminate an inverter, but not really sure of all. I've disabled it on my local version and replaced it with DeMorgan's Symbol option.

Attached text file shows a NAND with and without Invert Inputs selected. If you mouse over Invert Inputs NAND, it says it is a NAND, but logically with inverted inputs, it is an OR. A tad confusing and I'm not sure how it can be used.

Is this a partial implementation of DeMorgan's gates?

I have the logic worked out for DeMorgan's gates (version 3.1.1). Interested?

$ 1 0.000005 10.20027730826997 50 5 50 5e-11
151 272 176 368 176 0 2 0 5
151 272 272 368 272 4 2 5 5
L 144 208 96 208 0 1 false 5 0
L 144 240 96 240 0 1 false 5 0
M 368 176 432 176 0 2.5
M 368 272 432 272 0 2.5
207 144 208 192 208 4 A
207 144 240 192 240 4 B
207 272 160 224 160 4 A
207 272 192 224 192 4 B
207 272 288 224 288 4 B
207 272 256 224 256 4 A

[pfalstad]

There are some schematics which show a NAND with inverted inputs in place of an OR gate (for example) so I wanted to make it possible to represent those in the simulator. Rather than have an alternate symbol for the OR gate, I decided to make inverted inputs an option. It seemed easier to explain, maybe.

[ArmoredRodent]

I sort of figured that. I did a quick look before I posted. I'll grep the txt files and do a tad more exploring.