Create Matrix Operation.py

Python/Matrix Operation.py

@@ -0,0 +1,74 @@
+def accept_matrix(M) :
+    print("\nEnter the order of the Matrix (row,col) : ")
+    r = int(input("\trow = "))
+    c = int(input("\tcol = "))
+    print("Enter the elements of the Matrix : \n")
+    for i in range(r) :
+       A = []
+       for j in range (c) :
+          A.append(int(input()))
+       M.append(A)
+    print("\nMatrix accepted successfully\n")
+
+
+def display_matrix(M,r,c): 
+   print("Matrix (%d,%d) : "%(r,c))
+   for i in range(r) :
+      print("\t\t",end=' ')
+      for j in range(c):
+          print("%3d"%M[i][j],end=' ')
+      print("")	
+
+def check_for__saddlepoint(M,r,c) :
+    count = 0;
+    for i in range(r) :
+        #Find the minimum element of row i
+
+        min_row = M[i][0]
+        ci = 0
+        for j in range(1,c) :
+            if (min_row > M[i][j]) :
+                min_row = M[i][j];
+                ci = j
+        #Check if the min_row is also the maximum element of column or not
+        flag = 1
+        for ri in range(r) :
+            if (min_row < M[ri][ci]):
+                flag = 0
+                break
+        if (flag == 1) :
+            count += 1           
+            print("%d value is minimum in row(%d) and maximum in column(%d)"%(min_row,i+1,ci+1))
+    if (count == 0) :
+        print("No Saddle Point Exist for the given Matrix")
+    else :
+        print("%d Saddle Point Found in the given Matrix"%count)
+
+
+def main():   
+   while True :
+       print("\t\t\t1: Accept Matrix");
+       print("\t\t\t2: Display Matrix");
+       print("\t\t\t3: Find the Saddle Point");
+       print("\t\t\t4: Exit");
+       ch = int(input("Enter your choice : "))       
+       if (ch == 4):
+           print ("End of Program")
+           break
+       elif (ch==1):
+           Mat = []
+           print("Input the Matrix ")
+           accept_matrix(Mat)
+           r = len(Mat)
+           c = len(Mat[0])           
+       elif (ch==2):
+           display_matrix(Mat,r,c)           
+       elif (ch==3):
+           display_matrix(Mat,r,c)
+           check_for__saddlepoint(Mat,r,c)
+       else :
+           print ("Wrong choice entered !! Try again")
+
+main()
+quit()
+