How does python calculate the value of piecewise function
This article mainly introduces how to calculate the segmented function value of python. It is very detailed and has a certain reference value. Interested friends must read it!
Topic reproduction
Solution idea
First of all, Mr. x1 is X2, then we map it to the grid, and finally write an expression to solve it. The effect of the topic, and then a picture, even better!
Code reproduction
#-*-coding:UTF-8-*-# Development time: 2021-9-1 13:27import numpy as npimport matplotlib.pyplot as pltx = np.arange (- 2LINGY) y = np.arange) # generate grid points based on x and y [XLY] = np.meshgrid (x Y) Pxy = 0.5457*np.exp (- 0.75*Y**2-3.75*X**2-1.5cm X) * (X X > 1) +\ 0.7575*np.exp (- Y 0.75*Y**2 2-6*X**2) * ((X+Y-1)) +\ 0.5457*np.exp (- 0.75*Y**2-3.75*X**2 + 1.5cm X) * (X X)
