Function machines can also be used to help us find solutions to problems where the input or function are unknown. By following the same steps, in a different order, we can use our thinking skills ...

If you enjoy solving puzzles, you are going to love algebra! Algebra is used in Maths when we do not know the exact number or numbers in an equation. In place of these missing numbers, we use letters ...

This paper sets out the key concepts necessary to calculate trade in value added using input-output tables. We explain the basic structure of an input-output table and the matrix algebra behind the ...