# Wrapping Function

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*t*on line*L*to see the wrapping function*W(t)*. Each real number*t*on line*L*corresponds to a point*W(t)*on the unit circle*C*. The point is found by wrapping*L*about*C*without slipping or stretching. The coordinates of*W(t)*are (cos*(t)*, sin*(t)*). This is the definition of cosine and sine.## New Resources

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