Meaning of Sum
What is Sum:
The addition or addition is one of the four basic operations of arithmetic that consists of adding two or more elements to arrive at a final result where everything is included.
The addition symbol is the plus symbol (+) and is inserted between the elements to be added, such as: 2 + 3 = 5.
The sum can be of any element of natural numbers, integers, decimals, fractions, real and complex or algebraic expressions.