[nfbcs] truth tables

[Doug Lee]

My way of getting drawings was to have a reader scratch them out, to
page-size scale, with a safety pin or similarly very sharp object, on
a regular Braille page; then I'd roll it into a Braillewriter to label
it appropriately.

On Mon, Sep 29, 2014 at 07:35:03AM -0400, NFBCS mailing list wrote:
For making raised line drawings, I have used a piece of window-screen
stretched over a piece of wood or thick cardboard and taped in place with duct
tape.  Put a piece of ordinary print paper on top of the screen, and draw
whatever you want with an ordinary pen.
Tracy

----- Original Message ----- From: "Nancy Coffman via nfbcs"
<nfbcs at nfbnet.org>
To: "'Mike Jolls'" <mrspock56 at hotmail.com>; "'NFB in Computer Science Mailing
List'" <nfbcs at nfbnet.org>
Sent: Sunday, September 28, 2014 6:19 PM
Subject: Re: [nfbcs] truth tables


>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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>
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-- 
Doug Lee                 dgl at dlee.org                http://www.dlee.org
SSB BART Group           doug.lee at ssbbartgroup.com   http://www.ssbbartgroup.com
"Innovation is hard to schedule." -- Dan Fylstra