simple code for observing the solution

val.py

+# To add a new cell, type '# %%'
+# To add a new markdown cell, type '# %% [markdown]'
+
+# %%
+from matplotlib import pyplot as plt
+import numpy as np
+
+
+# %%
+file = open("values.txt","r")
+
+
+# %%
+f = file.readline()
+print(f)
+niter = int(f)
+g = [0]*niter
+for i in range (0, niter):
+    g[i]= file.readline()
+    g[i]=float(g[i])
+    
+file.close()
+print(g)
+
+
+
+# %%
+p= np.arange(1,niter+1)
+print(p)
+
+
+# %%
+plt.plot(p,g,'r-')
+
+
+# %%
+
+
+