python interpolate between two points

Published: 28 December 2023
on channel: CodeLearn
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Interpolation is a mathematical technique used to estimate values between two known points. In this tutorial, we'll explore how to interpolate between two points in Python. We'll use linear interpolation, a simple and commonly used method for this purpose.
Linear interpolation estimates values between two known data points by assuming a linear relationship between them. Given two points (x1, y1) and (x2, y2), we can find the value (y) at any point x between x1 and x2.
The formula for linear interpolation is:
y=y1+(x−x1)
(x2−x1)
(y2−y1)
Let's implement this in Python.
In this example, we have two points (0, 0) and (10, 20). We want to interpolate the y-value at x=5. The linear_interpolation function is defined to perform this interpolation, and the result is printed.
Feel free to modify the values of x1, y1, x2, y2, and interpolation_point to see how the interpolation changes.
Linear interpolation is a straightforward method to estimate values between two known points. While it may not be suitable for all types of data, it serves as a good starting point for understanding interpolation techniques in Python. As you become more familiar with interpolation, you can explore more advanced methods such as cubic spline interpolation for smoother results.
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