basic

Laws of Indices

Algebra

Basic operations

Hexadecimal numbers

The complexity of computers requires higher order numbering systems such as octal (base 8) and hexadecimal (base 16)…

Conversion of denary to binary via octal

Conversion of denary to binary

Computer numbering systems

Binary numbers The system of numbers in everyday use is the denary or decimal system of numbers, using…

Evaluation of formulae

Conversion tables and charts

It is often necessary to make calculations from various conversion tables and charts. Examples include currency exchange rates,…

Use of calculator

The most modern aid to calculations is the pocket-sized electronic calculator. With one of these, calculations can be…

Calculations and evaluation of formulae

Errors and approximations