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Exercise: Calculator

Understand how to use if-else statements to perform mathematical operations based on operator values. Learn to add, subtract, multiply, and divide numbers conditionally, and handle invalid operators by assigning NaN.

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Task

A data analyst wants to do mathematical operations on a series of values. He was able to extract multiple operands and label them as left and right operands. He extracted operators too. The only task left is the operation itself. He converted types of operands ...