Error using built-in residue function

Question

Kaleb Christoffersen 2013-2-11

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/62987-error-using-built-in-residue-function

采纳的回答： Walter Roberson

在 MATLAB Online 中打开

Upon generating the code below I get an error which points to a line of code within the function .M file:

{START CODE} den1=conv([1 4],[1 4])

den1 =

1 8 16

EDU>> den2=conv([1 4],[1 4])

den2 =

1 8 16

EDU>> den3=conv(den1,den2)

den3 =

1 16 96 256 256

EDU>> den=conv(den3,[1 1])

den =

1 17 112 352 512 256

EDU>> num = [0 5]

num =

0 5

EDU>> [res, pole, rem] = residue(num, den) ??? Error using ==> poly Too many output arguments.

Error in ==> residue at 128 v = poly(p); {END CODE}

Sometimes when I run the code with different vectors stored as "num" & "den" the error points to line 139, which I presume to be a result of the roots its testing for.

I'm running MATLAB R2011a on a Mac OSX 10.8 (Mountain Lion). I've even tested a classmates script .M file, which worked just fine on his computer; however, I ran into the same issue when I ran his script on my machine. Here's that script:

{START CODE} num = [5]; den1 = [1 4]; den2 = [1 4]; d1d2 = conv(den1,den2); den3 = [1,1]; dentotal = conv(d1d2,den3);

[r,p,k]=residue(num,dentotal) {END CODE}

Any ideas? Thanks. Kaleb