Ruby program to create Complex numbers from given imaginary parts

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num1 =  10;
num2 = -20;
num3 =  30;

print "Num1: "  ,num1.i();
print "\nNum2: ",num2.i();
print "\nNum3: ",num3.i();

 


Output:

Num1: 0+10i
Num2: 0-20i
Num3: 0+30i