Maths problem about CPU MCC

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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??

 

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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

 

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

Harry.

 

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

got it now, thanks guys

 

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?

 

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.