Christos
binary,
11110111= ?
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Christos
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it's signed
Christos
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the result has to be a decimal
Kanwar245
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in decimal it is 247
Christos
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it's signed bro
shubhamsrg
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There are 10 types of people in this world, ones who know binary, others who don;t! ;)
Kanwar245
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yes sir it is 247
Kanwar245
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yup @shubhamsrg since 10 is 2 in decimal
Christos
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I dont want to convert it, I need to know the steps for it, and im not a "sir" :P
shubhamsrg
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am glad you got it! -_-
goformit100
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Yo Yo @shubhamsrg
Christos
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There are 10 types of people in this world, ones who know binary, others who don;t, rest 8 doesn't exist in this world
anonymous
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\[1+2+4+16+32+64+128\] i think will do it
anonymous
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there is a zero in the 8th place
Christos
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:P But please show me the steps if you can I would be grateful
goformit100
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I know Binary... Use it's knowledge in Computer @Christos
shubhamsrg
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In my statement, 10 corresponded to 2 , (in base 2) -_-
anonymous
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work from the right to the left
Christos
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That's why rest 8 dont exist :P
Christos
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ok satellite ill do it
modphysnoob
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it is negative number
modphysnoob
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first invert it
shubhamsrg
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we can talk about 8 if it was base 10 , but when its base 2, talking about 8 is baseless ?
anonymous
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1s place
2s place
4s place
16s place
32s place
64s place
128s place
Christos
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Am I forced to invert it @modphysnoob ?
Christos
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I mean thats the only way?
modphysnoob
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yes, that's how you figure out negative number
ton12
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u have to change 11110111 into decimal ryt?
ton12
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@Christos
anonymous
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11110111
1 in the ones place
1 in the twos place
1 in the fours place
0 in the eights place
1 in the sixteens place
1 in the thirty twos place
1 in the sixty fours place
1 in the one hundred twenty eights place
Christos
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thanks modphy I figured it out thanks all for the contributions :D
modphysnoob
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It is signed , Can't you people read?
modphysnoob
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invert then add one
anonymous
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signed by what artist?
Christos
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lol
ton12
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11110111 (2) = 1*2^7+1*2^6+1*2^5+1*2^4+0*2^3+1*2^2+1*2^1+1*2^0
Christos
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:D
ton12
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Or use Dibble Dobble method....It Will Easier
modphysnoob
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2
4 Bit signed number
-3 1101
-2 1110
-1 1111
0
1 0001
2 0010
3 0011
modphysnoob
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2
11110111
subtract one
11110110
invert
00001001
now use conversion
modphysnoob
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should give you -9
Christos
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yes indeed it gave me -9 I already had the solution I just needed the steps to reproduce it with other numbers
Christos
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=)
modphysnoob
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it is just subtract one and then invert
Christos
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or invert and then add one right?
modphysnoob
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I think they both work ,
1111
invert
0000
add one
0001
1111
subtract one
1110
invert
0001
Christos
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I see
modphysnoob
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I am assuming you are in computer architecture class ?
Christos
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Yea that's right :)
Christos
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if it's a sign positive number I don't need to do that stuff right?
modphysnoob
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no, singed positive number would have leading number =0
Christos
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ok