[繪圖] 單位步階函數. 時間Tue Nov 18 00:22:45 2014. X(t)=(t+1)u(t-1)-tu(t-1)-u(t-2) x(t)=cos(t)[u(t+pi/2)-2u(t-pi)]+(cost)u(t-3*pi/2) 謝謝如果上面的太麻煩交 ...
確定! 回上一頁