Write a Python program which takes any data set (x1, y1), (2, y2),... (*N, YN) and computes the best fit polynomial P(x) = a +₁x + ₂x² +...+ ªkak, ax

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**Title: Writing a Python Program for Polynomial Curve Fitting**

**Introduction:**

This educational guide helps you understand how to write a Python program that takes any data set in the form of points and computes the best fit polynomial. The objective is to derive a polynomial of degree \( K \) that best fits the given data.

**Data Set:**

Consider a data set comprising several pairs of values:
\[
(x_1, y_1), (x_2, y_2), \ldots, (x_N, y_N)
\]

**Goal:**

The program aims to compute the best fit polynomial of the form:
\[
P(x) = a_0 + a_1x + a_2x^2 + \ldots + a_Kx^K
\]

**Steps to Follow:**

1. **Input the Data:** Begin by inputting or defining your set of data points.
2. **Choose a Degree:** Select the degree \( K \) for your polynomial.
3. **Computation:** Utilize polynomial fitting techniques, such as least squares fitting, to compute the coefficients \( a_0, a_1, \ldots, a_K \).
4. **Output the Polynomial:** The program should output the polynomial equation and can also plot it against the data points for visualization.

By following these steps, you will be able to create a Python script to determine and visualize the best fit polynomial for any given data set.
Transcribed Image Text:**Title: Writing a Python Program for Polynomial Curve Fitting** **Introduction:** This educational guide helps you understand how to write a Python program that takes any data set in the form of points and computes the best fit polynomial. The objective is to derive a polynomial of degree \( K \) that best fits the given data. **Data Set:** Consider a data set comprising several pairs of values: \[ (x_1, y_1), (x_2, y_2), \ldots, (x_N, y_N) \] **Goal:** The program aims to compute the best fit polynomial of the form: \[ P(x) = a_0 + a_1x + a_2x^2 + \ldots + a_Kx^K \] **Steps to Follow:** 1. **Input the Data:** Begin by inputting or defining your set of data points. 2. **Choose a Degree:** Select the degree \( K \) for your polynomial. 3. **Computation:** Utilize polynomial fitting techniques, such as least squares fitting, to compute the coefficients \( a_0, a_1, \ldots, a_K \). 4. **Output the Polynomial:** The program should output the polynomial equation and can also plot it against the data points for visualization. By following these steps, you will be able to create a Python script to determine and visualize the best fit polynomial for any given data set.
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