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Y must be numeric. X must be numeric. R is the arithmetic sum of X and Y. R is numeric. This function is also known as Plus.
1 2 + 3 4 4 6 1 2 + 3,⊂4 5 4 6 7 1J1 2J2 + 3J3 4J4 5J5 ¯5 + 4J4 5J5 ¯1J4 0J5