last lab

labPython/lab5/MatrixMethods.py

@@ -0,0 +1,32 @@
+from random import randint
+
+def initnxnMatrix(count:int)->list[list]:
+    Array = [[randint(1, 100) for _ in range(count)] for _ in range(count)]
+    return Array
+
+def printMatrix(Array:list[list])->None:
+    for i in range(len(Array)+1):
+        print(f"{i}\t", end="")
+    print("")
+    for index in range(len(Array)):
+        print(f"{index+1}\t", end="")
+        for value in Array[index]:
+            print(f"{value}\t", end="")
+        print("")
+
+def transDiagonalMatrix(Array:list[list], i:int)->list:
+    if Array[i] != Array[-(i+1)]:
+        Array[i] += Array[-(i+1)]
+        Array[-(i+1)] = Array[i] - Array[-(i+1)]
+        Array[i] = Array[i] - Array[-(i+1)]
+    return Array
+
+def divideEvenColumnsMainDiagonal(Array:list[list])->list[list]:
+    mainDiagonal = 0
+    for index, element in enumerate(Array):
+        mainDiagonal += element[index]
+    for elementIndex, element in enumerate(Array):
+        for index in range(len(element)):
+            if (index + 1)%2==0:
+                Array[elementIndex][index] //= mainDiagonal
+    return Array