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m = 4.3
y = Cos[m x]
tu1 = ParametricPlot[{x, y}, {x, 900, 1200}]
tu2 = Plot[Cos[m x], {x, 900, 1200}, PlotStyle -> {Red, Dashed}]
Show[tu1, tu2]
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[ Last edited by nono2009 on 2010-11-21 at 07:11 ]
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