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exponential operation

 
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exponential operation
PostPosted: Fri Apr 30, 2004 2:54 am     Reply with quote
Hi,

The equation 2^(x-1) is exponential form... Is der a way that I can express this using bit shifting operators.

Or any other suggestions..

Thnx
Haplo



Joined: 06 Sep 2003
Posts: 659
Location: Sydney, Australia

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PostPosted: Fri Apr 30, 2004 3:04 am     Reply with quote
As long as x>1, the following should do the job:

result=2<<(x-2);
Guest
PostPosted: Fri Apr 30, 2004 3:09 am     Reply with quote
Haplo wrote:
As long as x>1, the following should do the job:

result=2<<(x-2);


Is der another way if I'm going to start my x = 1.

thnx
Haplo



Joined: 06 Sep 2003
Posts: 659
Location: Sydney, Australia

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PostPosted: Fri Apr 30, 2004 3:13 am     Reply with quote
Try
result=1<<(x-1);

This should work for x=1 as well.
Guest
PostPosted: Fri Apr 30, 2004 3:18 am     Reply with quote
Haplo wrote:
Try
result=1<<(x-1);

This should work for x=1 as well.


Thanx
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