Need some clarification on reading this truth table

[Aristotle]

Homework Statement

Homework Equations

n/a

The Attempt at a Solution

I understand how to read the truth table. I understand that A, B, C, D are the inputs where 10 possible inputs are shown. However, with little to no sources available, I am lost on behalf of how this image came about to finding the outputs for W, X, Y, & Z just from looking at the right hand column from the left image of the braille readings. Can somebody possibly guide me to where the output numbers came from? Thank you!

 

[phinds]

Presumably, they are based on the Braille characters. They certainly correspond exactly to them so it seems rather obvious. It's likely just one of those cases where you don't happen to see something and then when you do you have to smack yourself in the forehead.

 

[Aristotle]

Presumably, they are based on the Braille characters. They certainly correspond exactly to them so it seems rather obvious. It's likely just one of those cases where you don't happen to see something and then when you do you have to smack yourself in the forehead.

Well...you see..that's the problem..I looked up the 3 dots in braille corresponding to A= 0, B = 0, C = 0, D = 0 from the left hand truth table..and in terms of numbers, those 3 dots is equivalent to the number 0. I still don't know how they got W= 0 X= 1, Y = 1, & Z=1 from the right hand truth table.

 

[phinds]

Well...you see..that's the problem..I looked up the 3 dots in braille corresponding to A= 0, B = 0, C = 0, D = 0 from the left hand truth table..and in terms of numbers, those 3 dots is equivalent to the number 0. I still don't know how they got W= 0 X= 1, Y = 1, & Z=1 from the right hand truth table.

You're overlooking the obvious. They clearly label the two column on the right as W over Z and then X over Y. The presence or absence of dots corresponds exactly, as I said, to the W,X,Y,Z shown.

 

[Aristotle]

You're overlooking the obvious. They clearly label the two column on the right as W over Z and then X over Y. The presence or absence of dots corresponds exactly, as I said, to the W,X,Y,Z shown.

Okay you deserve a 'like'...I see it now haha.

 

[phinds]

Okay you deserve a 'like'...I see it now haha.

See, I TOLD you you'd have to smack yourself in the forehead. We all do it from time to time.

 

[Aristotle]

See, I TOLD you you'd have to smack yourself in the forehead. We all do it from time to time.

Thank you for your help

 

[phinds]

Thank you for your help

Hey, I'm an old forehead smacker from way back so I sympathize. Glad to help.