

Sweets Box This aplet is designed to serve as an introduction to the concepts of Calculus, through finding a maximum value under constraints.
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This
aplet will allow the user to choose from a number of different functions (or to
define their own function) and then to graphically display the tangents to the
function.
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The
accompanying documentation includes a worksheet which develops the idea of a
gradient function.
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Time Series
This aplet will analyse a set of Time Series data, calculating the moving average values (3 point, centred 4 point and 5 point), the residuals (data  m.av.), the seasonal components (av. of corresponding residuals), and the seasonally adjusted values (data  seas. components).
Once the
values are calculated, the results can be graphed. As can be seen left, there
are a number of different possible combinations that can be graphed.
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The
combined graph of data and moving average is shown left. The line of best fit
can be calculated using the FIT command in the PLOT view.
Last modified: 19 Dec 2007 Sitemap Home Contact Me 