[求助]这个是什么意思？？？
 

Warning: Failure at t=2.221259e-005. Unable to meet integration tolerances without reducing the step size below the smallest value allowed (7.891498e-020) at time t.
(Type "warning off MATLAB:ode45:IntegrationTolNotMet" to suppress this warning.)
> In C:\MATLAB6p5\toolbox\matlab\funfun\ode45.m at line 335
In C:\Documents and Settings\ZHJ\桌面\zhanghongjian\HYUNDAI (G)\work\eulerdisk\eulerdisk.m at line 88