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Results tagged with polynomials
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user 52842
Questions in which polynomials (single or several variables) play a key role. It is typically important that this tag is combined with other tags; polynomials appear in very different contexts. Please, use at least one of the top-level tags, such as nt.number-theory, co.combinatorics, ac.commutative-algebra, in addition to it. Also, note the more specific tags for some special types of polynomials, e.g., orthogonal-polynomials, symmetric-polynomials.
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votes
Subgraph avoiding colorings
Suppose $G$ has order [number of vertices] $n$, and contains $m$ copies of $H$ as subgraphs (in the special case $H = K_2$, $m$ will be the size of $G$), and label them $H_1, H_2, \ldots, H_m$. (Some …
- 178
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votes
Accepted
Fitting a quadratic using regression when the y-intercept needs to be 0
If you want $a_0$ to be $0$, then the curve you are trying to fit has equation $y = a_1 x + a_2 x^2$. If you derive the normal equations starting from this equation, you get
$a_1 \sum x_i^2 + a_2 \su …
- 178