importnumpyasnpimportmatplotlib.pyplotaspltfrommatplotlib.tickerimportMultipleLocator# Define the x rangex=np.linspace(-2,2,1000)# Define the wave packet: high-frequency sine modulated by a Gaussian envelopey=np.sin(50*x)*np.exp(-x**2)#Plotting information# Create 3 subplots (3 rows, 1 column)fig,ax=plt.subplots(figsize=(9,7))# Adjust figure size if needed# Customize tick parameters for bold textax.tick_params(axis='both',direction='in',which='both')ax.tick_params(which='both',width=2)ax.tick_params(which='major',length=7,color='r')ax.tick_params(which='minor',length=4)ax.minorticks_on()# Turn on minor ticks# Set bold tick labels in Times New Romanax.tick_params(axis='x',labelsize=12)ax.tick_params(axis='y',labelsize=12)forlabelinax.get_xticklabels()+ax.get_yticklabels():label.set_fontweight('bold')label.set_fontname("Times New Roman")label.set_fontsize(20)# Set X-axis tick spacing (step size = 2)ax.xaxis.set_major_locator(MultipleLocator(2))# Define font settingsfont_settings= {"fontname":"Times New Roman","fontsize":20,# Change this for font size"fontweight":"bold"}# Labeling axes and titleax.plot(x,y,label='Group Wave',color='blue')ax.set_xlabel('Wave packet length',**font_settings)ax.set_title('High-Frequency Group Wave Packet',**font_settings)ax.set_ylabel('Amplitude',**font_settings)ax.legend(prop={'family':'Times New Roman','weight':'bold','size':12})ax.grid(True,linestyle="--",linewidth=0.5)#plt.savefig('wave packet ')plt.grid(True)plt.show()