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标题: 求助大神！！！！matlab求解方程时问题 [打印本页]

作者: kaixinxiangqian 时间: 2014-8-25 17:36
标题: 求助大神！！！！matlab求解方程时问题
>> solve(sqrt((T*l/(l+r-1)).^2+l.^2)+sqrt((T*(r-1)/(l+r-1)).^2+(r-1).^2)==r,l)
警告: The solutions are parametrized by the symbols:
z1 = RootOf(z^4 - r*z^3 - (z^2*(- 8*r - 2*h*r + h^2*tan(arpha)^2 + h^2 + 4*r^2 + 2*h^2*tan(arpha) - 2*h*r*tan(arpha) + 4))/4 + (z*(4*r -
8*r^2 + 4*r^3))/4 - r^4/4 - r^2/4 + r^3/2, z) minus {h/2 + (h*tan(arpha))/2, r - h/2 - (h*tan(arpha))/2}

> In solve at 190
pretty(ans)
--
|
|  [#1 - r + 1], [1 - #1 - r],
--
  --    3       2    2          2       2             2                                     2
  |  4.0 z1 4.0 z1 (h  tan(arpha)  + 2.0 h  tan(arpha) + h  - 2.0 h r tan(arpha) - 2.0 h r + 4.0 r  - 8.0 r + 4.0) z1 1.0
  |  ------- + ------- - ------------------------------------------------------------------------------------------------------
  -- #2    r - 1.0                                                    #2
               -- --
               |  |
- 3.0 r + 3.0  |  |
               -- --

作者: kaixinxiangqian 时间: 2014-8-27 08:18

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