posted 23 years ago
You basically divide the number successively by 16 until you get a remainder that is less than 16.
That is, for the number 20 for example:
20/16 you have 1 rem 4.
So your number 20 in hex will be 14, and in hava hex notation that will be 0x14.
for the number 40 you have:
40/16 2 rem 8
and becomes 0x28
I hope this helps.