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/sci/ - Science & Math

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6077946 No.6077946 [Reply] [Original]

Hey /sci/

Could someone explain how binary multiplication works please? I don't really understand it. I can convert decimal and hexadecimal to binary easily but I don't understand how the multiplication works.

Let's say I have 110.101 x 111.1

How would I go about solving that?
Thanks in advance.

>> No.6077955

you can't solve that

>> No.6077965

>>6077962
because it's not an equation

>> No.6077962

>>6077955
Why is that? I just pulled it out of my ass sorry.

>> No.6077974

>>6077965
You're gunna have to go into further detail her for me man, I am not following you at all. Is it a writing error? I want 110.101 multiplied by 111.1 in binary.

>> No.6077981

>>6077974
If that isn't possible any binary multiplication examples would be much appreciated.

>> No.6077984

http://www.jimloy.com/math/base2.htm

>> No.6078004

>>6077946
Line the two numbers one on top of the other and act like you're in second grade. Multiply it just like base 10.

110.101
x_111.1
------------
etc

Binary multiplication is piss easy, because if it's a one you just repeat the other line (minding indents) and if it's a zero you just add an extra indent for the next line.

>> No.6078007

>>6077984
Thanks, could you please explain why what I asked was not an equation by any chance?

>> No.6078011

>>6078004
Here, I'll draw it out to the end:

110.101
x_111.1
------------
___110101
__1101010
_11010100
110101000
----------------
Now you add them, again just like in 2nd grade.

>> No.6078012

why not converting into normal numbers, then multiplying them, and converting them back to binary?

>> No.6078014

convert to decimal, multiply, convert back

>>6078007
"equation" comes from the root word "equate" which means you know two things are "equal"
>2+2=4
On the other hand, 2+2 is an "expression."

>> No.6078016

>>6077955
Yes you can, it's 110001.1011

>> No.6078023

>>6078014
WhyCantIHoldAllThisAutism.png

>> No.6078047

>>6078023
your welcome for explaining it to you?

i could have left you hanging. it wasnt me who was trolling you about it, you know

>> No.6078053

>>6078014
this
you can't solve 2+2
you can't solve 2+2=4 either
you can solve 2+x=4

>> No.6078059

>>6078016
I got that sequence of 1's and 0's but how did you know the decimal point got put 4 digits in? Sorry for my dumb questions, I'm just trying to understand it.

>> No.6078060

>>6078047
That wasn't me, sorry.

>> No.6078066

>>6078060
>That wasn't me
>sorry

>> No.6078076

>>6078066
I was apologizing for inadvertently offending you by making a thread in which someone insulted you. Not for being the person who insulted you.

>> No.6078081 [DELETED] 

>>6078076
You didn't insult me.

>> No.6078090

>>6078076
>apologizing for inadvertently offending you by making a thread in which someone insulted you
That makes no sense.
Also no one insulted me.

>> No.6078104

>>6078090
It makes complete sense.

>> No.6078108

>>6078059
12.001*5.1=61.2051

How did I know the decimal point was four places in? Hint: 110101*(1/2)^3*1111*(1/2)

Also,
>decimal point
not binary point or radix point

>> No.6078112
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6078112

>>6078060
That's aight, bro.

>> No.6078113

>>6078012
because transistors

>> No.6078120
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6078120

>>6077946
>retarded CS major detected

Take your homework or take home final questions to >>>/g/ayfish

>> No.6078127
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6078127

>>6078120
>CS Major
>Only doing Binary like 8 weeks into the school year.

Try again.

>> No.6078131
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6078131

>>6078127
Meant to use this image. 'Cause technically I did ask you to speak. Also It's probably more like 6 weeks.

>> No.6078135

>>6078011
yeah... this OP

remember, in decimal something like 19*3 is
10 times 3 + 9 times 3
in bin 11*11 would be
10 times 11 + 1 time 11
of course by 10 I mean 2 and by 11 I mean 3

lol u confus?