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Produces a cosine function of the input.
![\includegraphics[height=10mm]{images/cosine}% WIDTH=48 HEIGHT=45](img111.png)
The operator can be placed on the canvas in two ways:
- From the Functions (``function'') toolbar; or
- By typing the letters ``cos'' on the canvas and then pressing the
Enter key.
For example, connecting a ``time'' block to this function, and then
to a graph, will produce a cosine wave. For further explanation regarding
trigonemtric functions, see Wikipedia's page on trigonometric functions.