# multiplication of two complex number in python by R4R Team

- Here we perform Multiplication of two complex.

Example-

first complex is 1+2j
second complex is 2+1j
Multiplication of both number is 5j

first complex is 5+2j
second complex is -1+0j
Multiplication of both number is -5-2j

program-

print("Enter first complex number")
n1=complex(input())
print("Enter second complex number")
n2=complex(input())

print("First complex is ",n1)
print("Second complex is ",n2)
print("Multiplication of both number is ",n1*n2)

output-

Enter first complex number
2+3j
Enter second complex number
1+2j
First complex is (2+3j)
Second complex is (1+2j)
Multiplication of both number is (-4+7j)

Enter first complex number
1+2j
Enter second complex number
2+1j
First complex is (1+2j)
Second complex is (2+1j)
Multiplication of both number is 5j

-In this program, we take input of two complex number by complex(input()) and multiple both number by '*' operator and print that multiplication.
-How complex(input()) works ? actually input() function take input of string i.e. 1+2j then by complex() we doing type casting here which convert string into required complex number.