with x(0)=I exist and are unique on the time interval t E [ 0, 1] for allTER\.Then discrete time system(4. 1)with f(5)=r(, i)describes the evolution of continuous time system(4.)at discrete time samples. In particular, if a is continuous then so is f Let us call a point in the closure of X locally attractive for system(4. 1)if there exists
习题讨论 题目: 1,计算I dx ta 2,计算lm=r(mndt,其中Bm为自然数 8,计算J=(11 xax,其中x是x的整数部分 sIn x sIn x 4,一研究l1= dx, dx,p>O的敛散性 x +sinx 5,设f:(-∞+∞)→R,在任何有限区间可积,且有limf(x)=A, 明,Ⅵt,()=「((x+0-f(x)=0 第七章定积分