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October 1st, 2011, 12:15 AM  #1 
Newbie Joined: Oct 2011 Posts: 2 Thanks: 0  Ways of STRAIGHTLY converting hexadecimal to octal & inverse
how can i convert octal numbers to hexadecimal numbers straightly (Means not the one we first convert to decimal and nor the one we convert to binary then to the other) just hexadecimal to octal and octal to hexadecimal ... THANK YOU!!!

October 1st, 2011, 02:30 AM  #2 
Member Joined: Apr 2010 Posts: 65 Thanks: 0  Re: Ways of STRAIGHTLY converting hexadecimal to octal & inv Code: B1A53 // hex 0B1  A53 // 3 digits 0 0 0 0  1 0 1 1  0 0 0 1  1 0 1 0  0 1 0 1  0 0 1 1 // binary        // 3 bits 0 2 6 1 5 1 2 3 // octal B1A53 (hex) == 2615123(oct) 3 digits hex <==> 4 digits oct tabble 
October 1st, 2011, 05:01 AM  #3 
Newbie Joined: Oct 2011 Posts: 2 Thanks: 0  Re: Ways of STRAIGHTLY converting hexadecimal to octal & inv
Thanks for the reply, but i was looking for other ways to convert octal to hexadecimal straightly...not octal > binary >hexa and hexa > binary > octal. Just hexa > octal and octal > hexa....May i know of anyways please?Thanks 
October 1st, 2011, 08:32 AM  #4 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 937 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: Ways of STRAIGHTLY converting hexadecimal to octal & inv
You can use a lookup table or calculation to make the conversion "direct" as you say, but using binary as an intermediate will be at least as fast. Generally, if you're converting from base b^x to base b^y, converting to base b^gcd(x,y) is a good first step.


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converting, hexadecimal, inverse, octal, straightly, ways 
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