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Maths problem about CPU MCC

Discussion in 'Training & Development' started by rax, Aug 31, 2007.

  1. rax

    rax Megabyte Poster

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    Hey guys,

    I'm in the CPU section of the Mike Myers A+

    It says
    2¹ = 2
    2² = 4
    2²º = 1,048,576

    I don't understand the maths behind it :/

    I tried 2x2 for 20 times and it wasn't the same result as 1,048,576

    Any ideas??:blink
     
    Certifications: ITIL v3 Foundation, CompTIA Network+
  2. Boycie
    Honorary Member

    Boycie Senior Beer Tester

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    Dave,

    This is known as "the power of". (or X^Y button on the Windows Scentific calculator (view > Scentific)).

    A good explanation can be found here.

    Boyce
     
    Certifications: MCSA 2003, MCDST, A+, N+, CTT+, MCT
  3. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    I've just done it on a calculator and got the number given. Perhaps you lost count? :biggrin

    Harry.
     
    Certifications: ECDL A+ Network+ i-Net+
    WIP: Server+
  4. rax

    rax Megabyte Poster

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    I got it now, I started with 2x2 instead of 2x1 heh

    got it now, thanks guys :D
     
    Certifications: ITIL v3 Foundation, CompTIA Network+
  5. twizzle

    twizzle Gigabyte Poster

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    I always find that working out binary numbers like this its useful to sometimes write it out...

    So yours becomes 2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2.

    Of course for larger integers it becomes a bit messier......2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2 see what i mean?:twisted:
     
    Certifications: Comptia A+, N+, MS 70-271, 70-272
    WIP: Being a BILB,
  6. BosonMichael
    Highly Decorated Member Award

    BosonMichael Yottabyte Poster

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    A good understanding of binary (which is what you're learning when you learn 2x2x2x2x2x2x2x2 = 256) will help you throughout your career, particularly with IP addressing, subnetting, and supernetting.
     
    Certifications: CISSP, MCSE+I, MCSE: Security, MCSE: Messaging, MCDST, MCDBA, MCTS, OCP, CCNP, CCDP, CCNA Security, CCNA Voice, CNE, SCSA, Security+, Linux+, Server+, Network+, A+
    WIP: Just about everything!

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