Page 32 - Module 1_Chapter 1_Mathematics in the Modern World

Mathematics in our World
22

Reading CDs and
DVDs • Mathematics can be used to

encipher this information so that
Mathematics can fill in the gaps third parties can’t read and misuse
caused by scratches and dust on the
it.
surface of CDs or DVDs.

• Mathematics can help solve this

problem: data stored on discs is

encoded using Reed-Solomon

codes. These are designed in

a way that even if parts of the

data are missing or incorrect

computers can use the
remaining data to find and
correct errors: to fill the gaps.

Public Key Cryptography

Supply Chains

Every day millions of containers, boxes,
letters, parcels are transported around the

world. A logistical task impossible without
mathematics

Reading CDs and DVDs

Public Key
Cryptography

Whenever you send an email or
use your credit card online, secret
information has to be exchanged

between your computer and a web
server.
Supply Chains

ZANNIE I. GAMUYAO, MSM UNIT 1.5 Applications of Mathematics
Assistant Professor 1 in the World
Department of Arts and Sciences