[Blindmath] binary basics

Fri Mar 20 15:36:59 UTC 2015

Programmer's base notation.
Blank=decimal, 0b=binary, 0o=octal, 0x=hex.

Bill

-----Original Message-----
From: Blindmath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of Jorge
Paez via Blindmath
Sent: Friday, March 20, 2015 11:32 AM
To: derek riemer; Blind Math list for those interested in mathematics
Subject: Re: [Blindmath] binary basics

Thanks everyone.
Awesome post by the way Tyler , very helpful.
For those of you who wrote binary notation in your message though, what's
the B supposed to represent?
Is that what you use instead of the exponent symbol?

On 3/20/15, derek riemer via Blindmath <blindmath at nfbnet.org> wrote:
> As well, Adding, subtracting, ... is the same. We carry the 1 if adding.
>
> 2+2
>
> 0b10 + 0b10
>
> 10
> 10
> --------
> 100
> What I did there is 1+1 is 10 in binary, or 2 in base 10. The 0 gets 
> dropped in the 2's place, and the 1 gets carried. Then we add it to 
> whatever is in the 4's place, and there you go.
> In most real world places, you would convert the binary to hex, and 
> use that for addition, because it is simply easier.
>
> On 3/20/2015 8:42 AM, Littlefield, Tyler via Blindmath wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Here you go, I wrote this a while back.
>> https://tysdomain.com/blog/?p=133
>> On 3/20/2015 10:37 AM, Bill Dengler (Windows 7 on Retina macBook Pro) 
>> via Blindmath wrote:
>>> I'll write a quick intro : Binary is the base 2 number system, so 
>>> it's place values are powers of 2. 2, 4, 8, 16, 32, 64, 128, 256, 
>>> 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, etc. To represent 
>>> a number in binary, you must represent it using 1 and the powers of 
>>> 2. If a number has a power, insert a 1, if not 0. For example : 1
>>> 0b1 2 0b10 (2+0) 3 0b11 (2+1) 4 0b100 (4+0 twos+0 ones) 7 0b111
>>> (4+2+1) 9 0b1001 (8+0 fours+0 twos+1) If you need more clarification 
>>> please email. Thanks, Bill. -----Original
>>> Message----- From: Blindmath [mailto:blindmath-bounces at nfbnet.org]
>>> On Behalf Of Jorge Paez via Blindmath Sent: Friday, March 20, 2015
>>> 10:16 AM To: Blind Math list for those interested in mathematics
>>> Subject: [Blindmath] binary basics
>>>
>>> Hi all: I was wondering if anyone knew of a book that I could get on 
>>> bookshare that would be a good introduction to binary numbers?
>>>
>>>
>>>
>>> -- Thank you.
>>>
>>>
>>>
>>>
>>> Jorge A. Paez
>>>
>>> LinkedIn: http://www.linkedin.com/in/jorgeapaez
>>>
>>> Elance page: http://jorgeapaez1994.elance.com
>>>
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>> m
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>> - --
>> Take care,
>> Ty
>> twitter: @sorressean
>> web:http://tysdomain.com
>> pubkey: http://tysdomain.com/files/pubkey.asc
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>>
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>
> --
> ----------------------------------------------------------------------
> --
>
>
>     Derek Riemer
>
> Department of Computer science Undergrad, proud CILA member, music 
> lover, avid skier, and much more.
>
> "Not everything that is faced can be changed, but nothing can be 
> changed until it is faced." - James Baldwin
>
> email me at derek.riemer at colorado.edu 
> <mailto:derek.riemer at colorado.edu>
> Phone: (303) 906-2194
>
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>

--
Thank you.

Jorge A. Paez

LinkedIn: http://www.linkedin.com/in/jorgeapaez

Elance page: http://jorgeapaez1994.elance.com

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