判别曲线[tex=5.429x1.143]sF6QeFbHY0nT3l31H/soQGt2SLviurYJbxBG7y87rwk=[/tex]的凹凸性.
举一反三
- 判别曲线[tex=4.143x1.429]pIWh6A1cn7l8Pp992ZRnEw==[/tex]的凹凸性[br][/br]
- 判定下列曲线的凹凸性：（2）[tex=3.786x1.286]BQBaxI8k9F73aCnSHszVhg==[/tex]
- 判定下列曲线的凹凸性：（3）[tex=8.357x2.0]g/Gf6R+BhksbNRozIpuY0wG/6v4QpTzABl1STqNmA04=[/tex]
- 下面哪段语句不会报错？ A: x = ones(1,4);nh = 0:2;h = (nh+1)* ones(1,3);n=0:5;y=conv(x,h);stem(n,y); B: x = [1 2 3];h = ones(1,5);n=0:7;y=conv(x,h);stem(n,y); C: x = ones(1,5);nh = 0:2;h = (nh+1).* ones(1,3);n=0:6;y=conv(x,h);stem(n,y);
- 下面哪段语句不会报错？ A: x = [1 2 3];h = ones(1,5);n=0:7;y=conv(x,h);stem(n,y); B: x = ones(1,4);nh =0:2;h = (nh+1) ones(1,3);n=0:5;y=conv(x,h);stem(n,y); C: x = ones(1,5);nh =0:2;h = (nh+1). ones(1,3);n=0:6;y=conv(x,h);stem(n,y);