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Post date:  6/28/2012 
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Sinusoidal Function

Definition: Let A, B, C and D be fixed constants, where A and B are both positive. Then we can form the new function: y = A*sin( ((2*pi)/B)*(x  C) ) + D, which is called a sinusoidal function. The four constants can be interpreted graphically as indicated. This is very similar to a periodic function, where they both have values of amplitude and period.
Source: "Precalculus" by David H. Collingwood, K. David Prince, and Matthew M. Conroy at University of Washington

Example: Graph example: http://i.ytimg.com/vi/n5tTAsBJS_g/ 0.jpg
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