Well, UNICODE 2122 is apparently the minus sign. Not only is there a minus sign 
but a special one for making negative numbers as opposed to positive numbers.

There is some way in the international or keyboard settings to input UNICODE 
minus as option held down while typing 2212. Also, if you go into edit->emotes 
and symbols (command-control-space on my system), you can search for minus.

There are actually UNICODE symbols for all of the recycle categories too! What 
fun we could have.

                Best wishes,

Jonathan Cohn 



> On Sep 30, 2016, at 11:27 AM, E.T. <ancient.ali...@icloud.com> wrote:
> 
>   This I want to find out as well. I may be too picky but I think its worth 
> the effort to find out.
> 
> From E.T.'s Keyboard...
>  Are We Alone in the Universe?
> ancient.ali...@icloud.com
> 
> On 9/30/2016 4:51 AM, Jonathan C. Cohn wrote:
>> I'm sure there is a code for -. I wonder what would happen if you type it in 
>> Nemeth math. Or perhaps we can find the unicode code online? What does 
>> ww.demos.com calculator say and proeuce?
>> 
>> Best wishes,
>> 
>> Jonathan Cohn
>> 
>>> On Sep 30, 2016, at 5:01 AM, David Chittenden <dchitten...@gmail.com> wrote:
>>> 
>>> The dash and the minus are two names for the same symbol. It is the same as 
>>> number sign, pound, and hash for the specific symbol..
>>> 
>>> David Chittenden, MSc, MRCAA
>>> Email: dchitten...@gmail.com
>>> Mobile: +64 21 2288 288
>>> Sent from my iPhone
>>> 
>>>> On 30/09/2016, at 17:51, E.T. <ancient.ali...@icloud.com> wrote:
>>>> 
>>>> That should work but that would be global wouldn't it? Normally pne would 
>>>> not notice a difference in print but using Voiceover, when numbers are 
>>>> involved, dash would not do. And when not using numbers, minus would not 
>>>> be good.
>>>> 
>>>> So I am curious if there is an actual difference in typing the two 
>>>> characters? Thanks much.
>>>> 
>>>> From E.T.'s Keyboard...
>>>> Are We Alone in the Universe?
>>>> ancient.ali...@icloud.com
>>>> 
>>>>> On 9/29/2016 9:44 PM, michael babcock wrote:
>>>>> go to the VO utility Select “Speech”, then “Pronunciation”.
>>>>> Click add, and put a “-“ in place for the “text” and “minus” in place for 
>>>>> the Substitution
>>>>> note, i had to press “vo+Space” on the “Substitution” color in the table 
>>>>> then type the word “minus” using voiceover 7 in OS X 10.12.
>>>>> hope that helps
>>>>>> On Sep 29, 2016, at 9:34 PM, E.T. <ancient.ali...@icloud.com> wrote:
>>>>>> 
>>>>>> Can one type a minus character so that Voiceover speaks 'minus' and not 
>>>>>> 'dash'?
>>>>>> 
>>>>>> From E.T.'s Keyboard...
>>>>>> Are We Alone in the Universe?
>>>>>> ancient.ali...@icloud.com
>>>>>> 
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