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it's signed

the result has to be a decimal

in decimal it is 247

it's signed bro

There are 10 types of people in this world, ones who know binary, others who don;t! ;)

yes sir it is 247

See http://numbermonk.com/binary/247/en

yup @shubhamsrg since 10 is 2 in decimal

I dont want to convert it, I need to know the steps for it, and im not a "sir" :P

am glad you got it! -_-

Yo Yo @shubhamsrg

\[1+2+4+16+32+64+128\] i think will do it

there is a zero in the 8th place

:P But please show me the steps if you can I would be grateful

I know Binary... Use it's knowledge in Computer @Christos

In my statement, 10 corresponded to 2 , (in base 2) -_-

work from the right to the left

That's why rest 8 dont exist :P

ok satellite ill do it

it is negative number

first invert it

we can talk about 8 if it was base 10 , but when its base 2, talking about 8 is baseless ?

1s place
2s place
4s place
16s place
32s place
64s place
128s place

Am I forced to invert it @modphysnoob ?

I mean thats the only way?

yes, that's how you figure out negative number

u have to change 11110111 into decimal ryt?

thanks modphy I figured it out thanks all for the contributions :D

It is signed , Can't you people read?

invert then add one

signed by what artist?

lol

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

:D

Or use Dibble Dobble method....It Will Easier

4 Bit signed number
-3 1101
-2 1110
-1 1111
0
1 0001
2 0010
3 0011

11110111
subtract one
11110110
invert
00001001
now use conversion

should give you -9

=)

it is just subtract one and then invert

or invert and then add one right?

I think they both work ,
1111
invert
0000
add one
0001
1111
subtract one
1110
invert
0001

I see

I am assuming you are in computer architecture class ?

Yea that's right :)

if it's a sign positive number I don't need to do that stuff right?

no, singed positive number would have leading number =0

ok