Day3 - Day 3 Number representations Make binary more human...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Day 3 Number representations Make binary more human friendly o Hexadecimal representation – base 16 o Commonly called “hex” but don’t be confused, it is not base 6 it is base 16 o Character set 0-9, a-f (alternatively A-F) A=10, b = 11, c = 12, d =13, e = 14 and f = 15 o C notation is to prefix hex with symbol 0x (e.g. 0x12, 0xa3) Positional notation applies Benfits of Hex o Easy to move back and forth between Hex and binary (16 = 2^4) o To transform hex number to binary we expand each hex digit to 4bits of binary: 3 d 5 0 0011 1101 0101 0000 Binary to hex transformation o Same thing other way around What about fractions? o Positional number systems work on both sides of the decimal point (radix point) o If radix is r (n integer digits, m fractional digits): Look this up Two kinds of numbers o Integers – radix point is assumed to be at the far right end of the digits o Fixed point – radix point is at a given, fixed location Eg. 0100.1110
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 2

Day3 - Day 3 Number representations Make binary more human...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online