Abgabe Überarbeitet

s1_a4.py

@@ -1,9 +1,15 @@
-i = 0
+#4.1
-s = 0.0
+import math
-while s <= 1.644934:
+
-    i = i + 1
+z = ((math.pi**2)/6)
-    s = s + 1.0 / (i * i)
+x = "%(z).6f"%{'z':(math.pi**2)/6}
-    print("Schritt: " + str(i) + ", Wert: " + str(s))
+y = 1.644934
-
+print(x)
-
+
-#pi^2/6 = 1,644934, wird erreicht nach 14959887 Schritten
+
+i = 1
+sum = 0
+while sum < y:
+    sum = sum + (1 / (i ** 2))
+    i = i + 1
+    print("Summe:", sum, ", Schritte: ", i) #Summe: 1.6449340000000012, Schritte: 14959887

s1_a51.py

@@ -1,19 +1,20 @@
-# 1a
+#5.1
-matrix_list = [[3, 0, -2, 11], [0, 0, 9, 0], [0, 7, 0, 0], [0, 0, 0, -3]]
+#a)
-print(matrix_list)
+matrix_list = [[3, 0, -2, 11], [0, 0, 9, 0], [0, 7, 0, 0], [0, 0, 0, -3]]
-
+print(matrix_list)
-# 1b+c
+
-matrix_list_general = [[], [], [], []]
+#b+c)
-MAX = 4
+matrix_list_general = [[], [], [], []]
-for i in range(0, MAX):
+MAX = 4
-    print("Zeile " + str(i + 1))
+for i in range(0, MAX):
-    for j in range(0, MAX):
+    print("Zeile " + str(i + 1))
-        n = int(input("Value:"))
+    for j in range(0, MAX):
-        matrix_list_general[i].insert(j, n)
+        n = int(input("Value:"))
-
+        matrix_list_general[i].insert(j, n)
-print(matrix_list_general)
+
-
+print(matrix_list_general)
-# 1d
+
-for i, row in enumerate(matrix_list_general):
+#d)
-    for j, value in enumerate(row):
+for i, row in enumerate(matrix_list_general):
-        print(f'a[{i}][{j}] = {value} ')
+    for j, value in enumerate(row):
+        print(f'a[{i}][{j}] = {value} ')

s1_a53_6.py

@@ -1,43 +1,52 @@
-#5_3
+#5.3
-list1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+list1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
-print("start list", list1)
+print("start list: ", list1)
-
+
-a = list1[9]
+list1.insert(0, list1.pop())
-b = list1[8]
+list1.insert(0, list1.pop())
-c = list1[7]
+list1.insert(0, list1.pop())
-
+
-list1 = [c] + [b] + [a] + list1
+print("new list: ", list1)
-list1.pop(-1)
+print()
-list1.pop(-1)
+print()
-list1.pop(-1)
+
-
+#---------------------------------------------------------------------------------------------------------
-print("new list", list1)
+
-print()
+#5.4
-print()
+#a
-
+word = "DONAUDAMPFSCHIFFAHRTSGESELLSCHAFTSSTEWARDESS"
-#5_4
+letters = list(word)
-#a
+print(letters)
-word = "DONAUDAMPFSCHIFFAHRTSGESELLSCHAFTSSTEWARDESS"
+print("length:", len(letters))
-letters = list(word)
+
-print(letters)
+#b
-print("length:", len(letters))
+letters_once = []
-
+for element in letters:
-#b
+    if element not in letters_once:
-letters_once = []
+        letters_once.append(element)
-for element in letters:
+
-    if element not in letters_once:
+print(letters_once)
-        letters_once.append(element)
+print("new length:", len(letters_once))
-
+
-print(letters_once)
+print()
-print("length new:", len(letters_once))
+print()
-
+
-print()
+#---------------------------------------------------------------------------------------------------------
-print()
+
-
+#5.5
-#5_5
+list2 = [[1, 2, 3], [2, 1, 3], [4, 0, 1]]
-def sort(list2):
+print("List2 unsorted:", list2)
-    list2.sort(key = lambda x: x[1])
+list2.sort(key = lambda list2: list2[1])
-    return list2
+print("List2 sorted by 2nd value:", list2)
-
+print()
-list2 = [[1, 2, 3], [2, 1, 3], [4, 0, 1]]
+print()
-print(sort(list2))
+#---------------------------------------------------------------------------------------------------------
+
+#5.6
+dict = { "Hund" : "wuff", "Katze" : "miau", "Kuh" : "muuh" }
+def function2(d, a):
+    print(a, ":", d[a])
+
+function2(dict, "Hund")
+function2(dict, "Katze")
+function2(dict, "Kuh")

s1_a61_2.py

@@ -1,6 +1,10 @@
-string = "this is a test"
+#6.
-replaced = string.replace(' ', '-')
+s = "This is a test"
-print(replaced)
+print(s)
-
+
-string2 = "hello, world"[-7::-1]
+#1.
-print(string2)
+print("Spaces replaced with '-':", s.replace(' ', '-'))
+
+#2.
+s1 = "Hello, World"[-7::-1]
+print(s1)