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标题: Maple13求解微分方程出错,求指导~~~ [打印本页]

作者: leonardo2008lh    时间: 2010-6-23 20:20
标题: Maple13求解微分方程出错,求指导~~~
代码下
+ T) n# L: m/ z0 x# Hrestart:' D5 d' U# L" Z8 q6 E1 U
q[off] := Q*exp(-tau*(t-t[off]));
6 M  Q. ]/ A2 ~9 u  N; sq[on] := Q*(1-exp(-tau*t));
3 m4 W& f7 C. Z2 Wdeq := diff(T(t), t) = -k*A*(T(t)-Tu)/(M*c)+q/(M*c);$ i% L, e8 P( J  k( }, Y
sol1 := dsolve({subs(q = q[on], deq), T(0) = T0}, T(t));
; A, ~' O' \: l4 B  Z* PT[off] := unapply(rhs(sol1), t);
! A& W7 d( V5 e# M' `6 Psol2 := dsolve({subs(q = q[off], deq), T(t[off]) = T[off](t[off])}, T(t));
2 |' `1 Q6 ^5 L" f- t+ \& y前面运行都没问题,最后一行出错,显示:
$ }( |# x& }: @) @& IError, (in type/DEtools/ODE_IC) found the independent variable, t, also present as an indexed variable, t[off]+ j: i$ P/ I4 |* e& a; \
刚刚学maple,不知道怎么改错,求高手指导~~~
# S$ G: Z$ ]% \# f$ t5 q- r
作者: linmatsas    时间: 2010-6-23 22:37
不懂啊~~~~~占个沙发~~~~我只知道MATLAB还学的不好~~~~
作者: zhd17101452    时间: 2010-7-13 17:47
括号错误括号错误括号错误




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