matlab Error using ==> mpower Inputs must be a scalar and a square matrix.y=n.*n.*(stepseq(-5,min(n),max(n))-stepseq(6,min(n),max(n)))+10*impseq(0,min(n),max(n))+20*(0.5^n).*(stepseq(4,min(n),max(n))-stepseq(10,min(n),max(n)))出现错误?Error using

matlab Error using ==> mpower Inputs must be a scalar and a square matrix.y=n.*n.*(stepseq(-5,min(n),max(n))-stepseq(6,min(n),max(n)))+10*impseq(0,min(n),max(n))+20*(0.5^n).*(stepseq(4,min(n),max(n))-stepseq(10,min(n),max(n)))出现错误?Error using
matlab Error using ==> mpower Inputs must be a scalar and a square matrix.
y=n.*n.*(stepseq(-5,min(n),max(n))-stepseq(6,min(n),max(n)))+10*impseq(0,min(n),max(n))+20*(0.5^n).*(stepseq(4,min(n),max(n))-stepseq(10,min(n),max(n)))
出现错误?Error using ==> mpower
Inputs must be a scalar and a square matrix.

matlab Error using ==> mpower Inputs must be a scalar and a square matrix.y=n.*n.*(stepseq(-5,min(n),max(n))-stepseq(6,min(n),max(n)))+10*impseq(0,min(n),max(n))+20*(0.5^n).*(stepseq(4,min(n),max(n))-stepseq(10,min(n),max(n)))出现错误?Error using

>> diff('sin(x)', 'x')
ans =
cos(x)
上面是我在matlab 7.6.0里运算的结果.
看来是你的matlab有问题,重装matlab吧