CraigsMaths

By comparing exponential and logarithmic functions with their simplest forms it is easy to sketch their graphs using a transformational approach.

All graphs in this article were created with OpenPlaG.

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Memorise these indices and logarithms laws. Indices and logarithms are two different ways of saying the same thing. For example:

is read as “ raised to the power of equals “.

that is:

.

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Multiplying matrices is fairly simple but there is a process to learn and a couple of rules to remember.

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Matrix addition and subtraction is fairly simple. Just remember that we can only add or subtract matrices if they have the same dimensions. The number of rows must be equal in each matrix and the number of columns must be equal in each matrix.

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Matrices are simply arrays of values. We use them as a tool to ease operations such as solving simultaneous equations, working with vectors and transformations.

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