[Solved] Why does numpy.polyfit return coefficients starting from the highest degree term? — Ans: To match the standard polynomial representation order | SciPy

SciPy - Curve Fitting and Regression

Why does numpy.polyfit return coefficients starting from the highest degree term?

ATo match the standard polynomial representation order

BBecause it sorts coefficients alphabetically

CTo confuse beginners

DIt returns coefficients in random order

Step-by-Step Solution

Solution:

Step 1: Recall polynomial notation
Polynomials are usually written starting with highest degree term (e.g., ax^2 + bx + c).
Step 2: Understand coefficient order in polyfit
polyfit returns coefficients in this standard order for consistency and clarity.
Final Answer:
To match the standard polynomial representation order -> Option A
Quick Check:
Coefficient order = highest degree first [OK]

Quick Trick: Coefficients follow standard polynomial order [OK]

Common Mistakes:

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Why does numpy.polyfit return coefficients starting from the highest degree term?