Every story.

Algebra

Basic operations

Hexadecimal numbers

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

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 the digits…

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, imperial to…

Use of calculator

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

Calculations and evaluation of formulae

Errors and approximations

Engineering notation and common prefixes

Standard form

Worked problems on standard form

Indices, standard form and engineering notation

Indices Worked problems on indices