[nfbcs] truth tables

[Nancy Coffman]

I think creativity goes a long way here.  Sticky notes or index cards on a
string board with clips of some sort or Velcro on a felt board could be
easily changed or corrected by moving pieces around.  Back in the 70's (dark
ages) someone had made a periodic table for me with dymo tape.  It turned
out to be more up-to-date than the table on the chemistry room wall.  Lines
can be made with a tracing wheel, puff paint or even Wiki sticks.

Nancy Coffman

-----Original Message-----
From: nfbcs [mailto:nfbcs-bounces at nfbnet.org] On Behalf Of Mike Jolls via
nfbcs
Sent: Friday, September 26, 2014 8:26 AM
To: nfbcs at nfbnet.org
Subject: Re: [nfbcs] truth tables

Commenting on another responder, Excel is in fact a good way to layout truth
tables.  However, here's a question.
What happens if you want to do some tabular work but you're not near a PC
with Excel, or maybe your electronic solution has died?
OK, this might not happen very often, but in the event it does, and if
you're not sighted where you can simply lay it out on paper like in the old
days before we had software such as Lotus 1,2,3  (I'm dating myself there)
or Microsoft Excel, what do you do if you're blind or your vision is such
that you can't deal with pencil and paper?
Is the only choice Braille at that point?
 
I suppose if the answer is Braille, then you better have a 40 column slate
and 11.5 inch wide paper.
And, hope that the data columns you need aren't so many that they won't fit
in 40 columns.
 
I ran into this problem when I had severe cataracts and was considering
doing it with a slate and stylus.
I have to say it was difficult remembering exactly how I was lining up
columns and getting the placement right.
That's why I asked what you do if your electronic solution goes away.
Is there an acceptable Braille method to use when you don't have the
electronic method available and you can't use Jaws / Magic / Excel or some
similar solution?
 
> Date: Mon, 22 Sep 2014 19:52:43 -0400
> To: program-l at freelists.org; nfbcs at nfbnet.org
> Subject: [nfbcs] truth tables
> From: nfbcs at nfbnet.org
> 
> Hello all:
> Is there a good way of representing truth tables? For the basic 
> functions it's pretty simple to just write straight text, but it gets 
> harder as you add to it. I'd like to be able to represent them in a 
> way that would make it easier to understand logic operations.
> Thanks,
> 
> --
> Take care,
> Ty
> http://tds-solutions.net
> He that will not reason is a bigot; he that cannot reason is a fool; he
that dares not reason is a slave.
> 
> 
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