Merge pull request #91 from mosesrukshan/main

Added matrix calculator

Matrix_Calculator.py

@@ -0,0 +1,72 @@
+operation = input("Operation(use these notations; +,-,*) :")
+C_A = int(input("No of columns of matrix A:"))
+R_A = int(input("No of raws of matrix A:"))
+print("Enter Matrix A:")
+A = [[int(s) for s in input().split()] for i in range(C_A)] #Input matrix A
+
+C_B = int(input("No of columns of matrix B:"))
+R_B = int(input("No of raws of matrix B:"))
+print("Enter Matrix B:")
+B = [[int(s) for s in input().split()] for j in range(C_B)] #Input matrix B
+
+print("Resultant Matrix:")
+def add(a, b, c, d):
+    if a == c and b == d: #condition
+        X = [] #resultant matrix    
+        for i in range(b):
+            r = []
+            x = 0
+            for j in range(a):
+                x = A[i][j] + B[i][j]
+                r.append(x)
+            X.append(r)
+        for n in X:
+            print(*n)
+    else: print("Invalid")
+
+
+def sub(a, b, c, d):
+    if a == c and b == d: #condition
+        X = [] #resultant matrix    
+        for i in range(b):
+            r = []
+            x = 0
+            for j in range(a):
+                x = A[i][j] - B[i][j]
+                r.append(x)
+            X.append(r)        
+        for n in X:
+            print(*n)
+    else: print("Invalid")
+
+
+def mult(a, b, c, d):
+    X = [] #resultant matrix
+    if a == d: #condition to multiply two matrices
+        for k in range(b):
+            r = []
+            for l in range(c):        
+                x = 0
+                for m in range(d):
+                    x += A[k][m]*B[m][l]
+                r.append(x)
+            X.append(r)        
+        for n in X:
+            print(*n)
+    else:print("Invalid")
+
+if operation == "+":
+    add(C_A, R_A, C_B, R_B)
+
+elif operation == "-":
+    sub(C_A, R_A, C_B, R_B)
+
+elif operation == "*":
+    mult(C_A, R_A, C_B, R_B)
+
+
+
+
+
+
+