Polynomial regression: Difference between revisions
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<pre>3*x^2+2*x+1</pre>
=={{header|Mathematica}}/{{header|Wolfram Language}}==
Using the built-in "Fit" function.
<lang Mathematica>data = Transpose@{Range[0, 10], {1, 6, 17, 34, 57, 86, 121, 162, 209, 262, 321}};
Fit[data, {1, x, x^2}, x]</lang>
Second version: using built-in "InterpolatingPolynomial" function.
<lang Mathematica>Simplify@InterpolatingPolynomial[{{0, 1}, {1, 6}, {2, 17}, {3, 34}, {4, 57}, {5, 86}, {6, 121}, {7, 162}, {8, 209}, {9, 262}, {10, 321}}, x]</lang>
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