diff --git a/.idea/.gitignore b/.idea/.gitignore
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+++ b/.idea/.gitignore
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+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
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+++ b/.idea/inspectionProfiles/Project_Default.xml
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+
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diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
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+++ b/.idea/inspectionProfiles/profiles_settings.xml
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diff --git a/.idea/misc.xml b/.idea/misc.xml
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+++ b/.idea/misc.xml
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diff --git a/.idea/modules.xml b/.idea/modules.xml
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diff --git a/.idea/Эффект Поккельса.iml b/.idea/Эффект Поккельса.iml
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diff --git a/407.pdf b/407.pdf
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diff --git a/Lissajue's figure.png b/Lissajue's figure.png
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diff --git a/Pokkels' effect .png b/Pokkels' effect .png
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diff --git a/data.tex b/data.tex
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+++ b/data.tex
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+\chapter{Данные}
+\label{cha:data}
+
+\begin{table}[h!]\label{tab:res}
+\centering
+\begin{tabular}{|c|c|c|c|}
+\hline
+m & $r_m$, мм & $r_m^2$, мм$^2$ & $\Delta r_m^2$, мм$^2$\\
+\hline
+1 &9&81& 54\\
+\hline
+1 &9&81& 54\\
+\hline
+2&15&225&60\\
+\hline
+2&12&144&48\\
+\hline
+3&19&361&76\\
+\hline
+3&17&289&68\\
+\hline
+4&23&529&69\\
+\hline
+4&20.5&420&62\\
+\hline
+5&26.5&702&80\\
+\hline
+5&23.5&552&71\\
+\hline
+\end{tabular}
+\caption{Измерения тёмных колец интерференционной картины при поперечном выходном поляризаторе}
+\end{table}
\ No newline at end of file
diff --git a/interference.png b/interference.png
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diff --git a/main.py b/main.py
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+++ b/main.py
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+from matplotlib import pyplot as plt
+import numpy as np
+
+fig = plt.figure(figsize=(7, 4))
+
+plt.grid(linestyle='--')
+
+plt.xlabel('m', fontsize=15)
+plt.ylabel('r^2, mm^2', fontsize=15)
+
+r = [9, 15, 19, 23, 26.5]
+r2 = [9, 12, 17, 20.5, 23.5]
+r3 = []
+err = [3, 3, 2, 2, 2, 2, 1.5, 1.5, 1.5, 1.5]
+
+for i in range(5):
+ r3.append(r[i]**2)
+ r3.append(r2[i]**2)
+
+for i in range(10):
+ print(r3[i])
+
+err2 = []
+for i in range(10):
+ err2.append(2*np.sqrt(r3[i])*err[i])
+print(err2)
+
+m = [1, 1, 2, 2, 3, 3, 4, 4, 5, 5]
+
+plt.errorbar(m, r3, xerr=0, yerr=err2, fmt='o', linewidth=1)
+
+def MNK(m, r2):
+ #r2 = r**2
+ up = 0
+ down = 0
+ up2 = 0
+ down2 = 0
+ for i in range(10):
+ up+=m[i]*r2[i]
+ down+=m[i]**2
+ up2+=r2[i]**2
+ down2+=m[i]**2
+ k=up/down
+ print(k, 1/np.sqrt(10)*np.sqrt(up2/down2-k**2))
+
+
+MNK(m, r3)
+x = np.linspace(1, 5, 10)
+y = 117.45*x
+
+plt.plot(x, y, linewidth=2, label='k = 117$\pm 5$')
+
+
+plt.title('МНК приближение')
+plt.legend(loc='upper center', fontsize=15)
+plt.show()
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