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21#
发表于 2011-5-31 21:12 |只看该作者
|招呼Ta 关注Ta
Manipulate[z1 = x1 + y1 I; z2 = x2 + y2 I;
Graphics[{Black, Arrow[{{-1, 0}, {6, 0}}], Black,
   Arrow[{{0, -1}, {0, 6}}], {Red, Arrowheads[.02],
    Arrow[{{0, 0}, {x1, y1}}]}, {Red, Arrowheads[.02],
    Arrow[{{0, 0}, {Re[z1 z2], Im[z1 z2]}}]}, {Red, Arrowheads[.02],
    Arrow[{{x1, y1}, {Re[z1 z2], Im[z1 z2]}}]}, {Blue,
    Arrowheads[.02], Arrow[{{0, 0}, {x2, y2}}]}, {Blue,
    Arrowheads[.02], Arrow[{{1, 0}, {x2, y2}}]}, {Blue, Thick,
    Line[{{0, 0}, {1, 0}}]}
   }], {x1, -3, 3}, {y1, -3, 3}, {x2, -3, 3}, {y2, -3, 3}]
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Axes->True,
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PlotRangeClipping->True,
PlotRangePadding->{
Scaled[0.02],
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严寒 发表于 2011-5-30 20:58
根据本文建立的数学模型,并综合考虑各项影响因素,最后确定飞机在失去动力的情况下在设定飞机触水速度约为 ...

不错  还行哈哈哈哈哈哈啊哈哈哈哈
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