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What does Omig stand for?
Hello LZ

High school compulsory 4 see W, which generally appears in trigonometric functions.

Y=Asin(wx+φ)

This w defaults to > 0[ if there is no sign restriction, the absolute value will be added to all subsequent calculations], indicating the degree of lateral stretching or contraction of trigonometric function, and the magnification is1/w. ..

For example, the sine function of w=2 will be reduced by half compared with the sine function of w= 1.

At the same time, he has the following relationship with period T.

For sine and cosine functions, t = 2π/w.

For tangent function, T=π/w