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Christos

  • 2 years ago

binary, 11110111= ?

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  1. Christos
    • 2 years ago
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    it's signed

  2. Christos
    • 2 years ago
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    the result has to be a decimal

  3. Kanwar245
    • 2 years ago
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    in decimal it is 247

  4. Christos
    • 2 years ago
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    it's signed bro

  5. shubhamsrg
    • 2 years ago
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    There are 10 types of people in this world, ones who know binary, others who don;t! ;)

  6. Kanwar245
    • 2 years ago
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    yes sir it is 247

  7. goformit100
    • 2 years ago
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    See http://numbermonk.com/binary/247/en

  8. Kanwar245
    • 2 years ago
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    yup @shubhamsrg since 10 is 2 in decimal

  9. Christos
    • 2 years ago
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    I dont want to convert it, I need to know the steps for it, and im not a "sir" :P

  10. shubhamsrg
    • 2 years ago
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    am glad you got it! -_-

  11. goformit100
    • 2 years ago
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    Yo Yo @shubhamsrg

  12. Christos
    • 2 years ago
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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

  13. satellite73
    • 2 years ago
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    \[1+2+4+16+32+64+128\] i think will do it

  14. satellite73
    • 2 years ago
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    there is a zero in the 8th place

  15. Christos
    • 2 years ago
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    :P But please show me the steps if you can I would be grateful

  16. goformit100
    • 2 years ago
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    I know Binary... Use it's knowledge in Computer @Christos

  17. shubhamsrg
    • 2 years ago
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    In my statement, 10 corresponded to 2 , (in base 2) -_-

  18. satellite73
    • 2 years ago
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    work from the right to the left

  19. Christos
    • 2 years ago
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    That's why rest 8 dont exist :P

  20. Christos
    • 2 years ago
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    ok satellite ill do it

  21. modphysnoob
    • 2 years ago
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    it is negative number

  22. modphysnoob
    • 2 years ago
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    first invert it

  23. shubhamsrg
    • 2 years ago
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    we can talk about 8 if it was base 10 , but when its base 2, talking about 8 is baseless ?

  24. satellite73
    • 2 years ago
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    1s place 2s place 4s place 16s place 32s place 64s place 128s place

  25. Christos
    • 2 years ago
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    Am I forced to invert it @modphysnoob ?

  26. Christos
    • 2 years ago
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    I mean thats the only way?

  27. modphysnoob
    • 2 years ago
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    yes, that's how you figure out negative number

  28. ton12
    • 2 years ago
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    u have to change 11110111 into decimal ryt?

  29. ton12
    • 2 years ago
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    @Christos

  30. satellite73
    • 2 years ago
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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

  31. Christos
    • 2 years ago
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    thanks modphy I figured it out thanks all for the contributions :D

  32. modphysnoob
    • 2 years ago
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    It is signed , Can't you people read?

  33. modphysnoob
    • 2 years ago
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    invert then add one

  34. satellite73
    • 2 years ago
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    signed by what artist?

  35. Christos
    • 2 years ago
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    lol

  36. ton12
    • 2 years ago
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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

  37. Christos
    • 2 years ago
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    :D

  38. ton12
    • 2 years ago
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    Or use Dibble Dobble method....It Will Easier

  39. modphysnoob
    • 2 years ago
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    4 Bit signed number -3 1101 -2 1110 -1 1111 0 1 0001 2 0010 3 0011

  40. modphysnoob
    • 2 years ago
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    11110111 subtract one 11110110 invert 00001001 now use conversion

  41. modphysnoob
    • 2 years ago
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    should give you -9

  42. Christos
    • 2 years ago
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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

  43. Christos
    • 2 years ago
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    =)

  44. modphysnoob
    • 2 years ago
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    it is just subtract one and then invert

  45. Christos
    • 2 years ago
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    or invert and then add one right?

  46. modphysnoob
    • 2 years ago
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    I think they both work , 1111 invert 0000 add one 0001 1111 subtract one 1110 invert 0001

  47. Christos
    • 2 years ago
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    I see

  48. modphysnoob
    • 2 years ago
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    I am assuming you are in computer architecture class ?

  49. Christos
    • 2 years ago
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    Yea that's right :)

  50. Christos
    • 2 years ago
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    if it's a sign positive number I don't need to do that stuff right?

  51. modphysnoob
    • 2 years ago
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    no, singed positive number would have leading number =0

  52. Christos
    • 2 years ago
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    ok

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