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Why is Matlab not writing out all the terms in an expansion?
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I am trying to expand some polynomials, and I typed: >> y1
Syms s1 s2 s3 s4;
y1 = (s1^2 - 4*s2 + 8*s4^(1/2))*(4*s2 - s1^2 + 8*s4^(1/2));
>> expand(y1)
And Matlab told me that
ans =
- s1^4 + 8*s1^2*s2 - 16*s2^2 + 64*s4.
But I'm pretty sure the answer should have six terms, so what's happening?
Thanks.
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