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Euler formula is the amazing link from exponential function to complex numbers. The second line derived from the first is called by Feynman the most elegant formula in mathematics. The invention of the decimal number system, zero, and negative numbers have been great intellectual strides for us to understand and work with mathematical problems. The set of all positive and negative numbers and zero constitutes a framework that we call “real numbers” and is denoted by R. With real numbers, we can tackle a large set of problems in our daily lives. However as our intellectual realm has widened further, we have encountered instances our established number system is unable to handle….