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Topic:  two different tools 
Related Item:  http://mathforum.org/mathtools/tool/1127/ 
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Subject:  Two Different ToolsWierdness Everywhere 
Author:  Craig Russell 
Date:  Feb 5 2004 
thing that happens in the activity you and Kathleen demonstrated using a
spreadsheet. You can get almost the same effect using a graphing calculator
just make the wavelength (1/omega, essentially) slightly larger or smaller than
a few pixelwidths. Fairly sophisticated math students might be asked to try
to explain WHY the granularity of the display affects the appearance of the
curve. Why does it look like the superposition of two sinusoids of slightly
different frequencies [such as sin(5x)+sin(6x)]?
 
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