Using array as a for loop

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关闭： MATLAB Answer Bot 2021-8-20

I need to solve the polynomial x^4+nx^3-1 for n=-1,0,1 (without using for loop)

What I did is:

n=(-1:1:1);
co_poly=[1 n 0 0 -1];
roots(co_poly)

but it just put the array n inside the coefficients array.

此问题已关闭。

Geoff Hayes 2016-3-13

Harel - why don't you just iterate over each n and calculate the roots for that particular n? For example,

 for n=-1:1:1
     co_poly=[1 n 0 0 -1];
     roots(co_poly) 
 end

I forgot, I should not use for

Geoff Hayes 2016-3-13

Why can't you use for? Does the assignment prevent you from using that?

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