[Blindmath] binary basics

Fri Mar 20 16:04:40 UTC 2015

OK, so let's see if I'm right.
Taking the 10 from the joke, you're saying it'd be 0b10 in proper
binary notation?

On 3/20/15, Paul Chapin via Blindmath <blindmath at nfbnet.org> wrote:
> 0b is the standard way for programmers to designate that the number than
> follows is binary in the same way the 0x indicates the number is
> hexadecimal.
>
> There are 10 kinds of people in the world. Those who understand binary and
> those who don't. (Sorry, it's an old joke but it shows the potential for
> confusion without the leading 0b).
>
> Paul Chapin
> Academic Technology Specialist
> Amherst College
> X2144
>
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> From: Jorge Paez via Blindmath
> <blindmath at nfbnet.org<mailto:blindmath at nfbnet.org>>
> Reply-To: Jorge Paez
> <jorgeapaez1994 at gmail.com<mailto:jorgeapaez1994 at gmail.com>>, Blind Math list
> for those interested in mathematics
> <blindmath at nfbnet.org<mailto:blindmath at nfbnet.org>>
> Date: Friday, March 20, 2015 at 11:32 AM
> To: derek riemer
> <Derek.Riemer at colorado.edu<mailto:Derek.Riemer at colorado.edu>>, Blind Math
> list for those interested in mathematics
> <blindmath at nfbnet.org<mailto:blindmath at nfbnet.org>>
> 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<mailto: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
>
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>
>      Derek Riemer
>
> Department of Computer science Undergrad, proud CILA member, music
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>
>
>
>
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>
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-- 
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Jorge A. Paez

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