many changes

ex2/task_c.py

@@ -1,19 +0,0 @@
-import numpy as np
-import matplotlib.pyplot as plt
-
-x = np.linspace(0,1,200)
-p_list = [-100, -10, -1, 0, 1, 10, 100]
-
-for p in p_list:
-    if p != 0:
-        u = (np.exp(p*x)-1)/(np.exp(p)-1)
-    else:
-        u = x
-
-    plt.plot(x,u, label=f"p={p}")
-
-plt.xlabel("x")
-plt.ylabel("u(x)")
-plt.title("Solution of -u''+pu'=0 with u(0)=0 u(1)=1")
-plt.legend()
-plt.show()