e: mental hex/decimal conversion?
- From: Alex Hall <mehgcap@xxxxxxx>
- To: programmingblind@xxxxxxxxxxxxx
- Date: Sun, 12 Apr 2009 06:25:59 -0400
Thanks!
Have a great day,
Alex
----- Original Message -----
From: "Martin Slack" <m.g.slack@xxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Sun, 12 Apr 2009 09:10:23 +0100
Subject: Re: mental hex/decimal conversion?
There is a way to convert using only addition and multiplying by
16
itself...
Start with the left hand digit.
Multiply by sixteen and add the next digit to the right.
Multiply that sum by 16 and add the next digit to the right.
Continue until you have added the rightmost digit.
You have the answer.
hth
Martin
----- Original Message -----
From: "Alex Hall" <mehgcap@xxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Sent: Saturday, April 11, 2009 11:57 PM
Subject: e: mental hex/decimal conversion?
So there is no way to convert it simply, that is, without
multiplying by
powers of 16? Oh well, it was worth a try, and thanks for the
help.
Have a great day,
Alex
----- Original Message -----
From: "Jerry Richer" <jerry@xxxxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Sat, 11 Apr 2009 16:14:44 -0400
Subject: Re: mental hex/decimal conversion?
OK, take your hex number.
! Count the number of digits from right to left starting with
zero, let's
call that number x
! Multiply that digit by 16 to the power x
! Set the result aside
! Move one digit to the right
! Multiply that digit by 16 to the power x-1
! Set the result aside
! Move one digit to the right
! Multiply that digit by 16 to the power x-2
! Set the result aside
! Continue until you get to the right most digit and finally
multiply it by
16 to the power x-x or zero
! Now add all these set aside numbers together to get the base 10
equivalent
of your hex number
Jerry
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