数学建模与数学实验（第3版）课件+matlab

				clear
				i=2;
				w=0;
				x(i)=exprnd(10);
				c(i)=x(i);
				b(i)=x(i);
				
				while b(i)				   y(i)=unifrnd(4,15); 
				   e(i)=b(i)+y(i);   
				   w=w+b(i)-c(i);   
				   
				   i=i+1;   
				   x(i)=exprnd(10);   
				   c(i)=c(i-1)+x(i);   
				   b(i)=max(c(i),e(i-1));   
				end
				
				i=i-2;
				t=w/i
				m=i