Need some clarification on reading this truth table

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Discussion Overview

The discussion revolves around understanding a truth table related to Braille characters and how the outputs W, X, Y, and Z are derived from the inputs A, B, C, and D. Participants are seeking clarification on the relationship between the Braille representations and the corresponding outputs.

Discussion Character

  • Homework-related
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • One participant expresses understanding of the truth table inputs but is confused about how the outputs W, X, Y, and Z are determined from the Braille readings.
  • Another participant suggests that the outputs are likely based on the Braille characters, indicating a straightforward correspondence.
  • A participant reiterates their confusion regarding the outputs, specifically questioning how W=0, X=1, Y=1, and Z=1 are derived from the inputs A=0, B=0, C=0, D=0.
  • Responses highlight that the outputs are labeled in the truth table, suggesting a direct relationship between the presence or absence of dots and the outputs.
  • Participants acknowledge the realization of the output derivation after further discussion.

Areas of Agreement / Disagreement

Participants generally agree on the relationship between the Braille characters and the outputs, but there is initial confusion about the specific derivation of the outputs from the inputs. The discussion reflects a process of clarification rather than a resolution of differing views.

Contextual Notes

Some assumptions about the interpretation of Braille and the truth table may not be explicitly stated, leading to confusion. The discussion does not resolve how the outputs are calculated from the inputs, leaving some uncertainty in the reasoning process.

Aristotle
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Homework Statement


braille.JPG


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!
 
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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. :smile:
 
phinds said:
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. :smile:
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.
 
Aristotle said:
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.
 
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phinds said:
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.
 
Aristotle said:
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.
 
phinds said:
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 :smile:
 
Aristotle said:
Thank you for your help :smile:
Hey, I'm an old forehead smacker from way back so I sympathize. Glad to help.
 

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