【简答题】Directions: There is a short passage below. After reading it, you should give brief answers to the 5 questions (No.56 through No.60) that follow. The answer should be written after the corresponding n...
【简答题】(6)作出下列函数图象 (i) 曲线 y = x 2 sin ( x 2 - x - 2) , -2 £ x £ 2 ( 要求分别使用 plot 或 fplot 完成 ) (iii) 抛物面 z = x 2 + y 2 , ÷ x ê <3, ÷ y ê <3 (v) 空间曲线 x=sin t , y=cos t , z=cos(2 t ), 0< t <2 p (vi) 半球面 x=2s...