DEplot运行后的error：system must have same parameters
本帖最后由 maomao_hhu 于 2012-11-11 21:09 编辑因为是非线性微分方程组的，所以老师说用deplot算一个six equations each with second order的微分方程组，
每个方程类似于：
de1 := diff(x1(t), t, t)+(1/2)*(sqrt((x3(t)-x1(t))^2+(y3(t)-y1(t))^2)-2)*(-2*x3(t)+2*x1(t))/sqrt((x3(t)-x1(t))^2+(y3(t)-y1(t))^2)+(1/2)*(sqrt((x2(t)-x1(t))^2+(y2(t)-y1(t))^2)-2)*(-2*x2(t)+2*x1(t))/sqrt((x2(t)-x1(t))^2+(y2(t)-y1(t))^2) = diff(x2(t), t)-2*(diff(x1(t), t))+diff(x3(t), t)
组成系统：
sys := {de1, de2, de3, de4, de5, de6}
最后输入命令：
DEplot(, , t = 0 .. 100, [])
结果出现：
Error, (in DEtools/DEplot) system must have same number of dependent variables as DE's.
我觉得变量没有问题啊，求各位高手指教
把具体方程列出来看看 来看一下{:{39}:}
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