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Many functions used in real analysis can be extended in to complex numbers using [[Taylor series]]. This is the subject of [[complex analysis]].
Many functions used in real analysis can be extended in to complex numbers using [[Taylor series]]. This is the subject of [[complex analysis]].
One should noted that [[complex]] numbers do not [[Reality|really]] exist in [[nature]], for example everything that one can measure in [[Physics]] for example weight, energy, pressure and so on are all [[real]] [[numbers]]. Rather, they are imaginary objects that are used in formal computations. Still, the result of any computation that pertains to the [[real world]], clearly will be a natural number.
===Polar notation===
===Polar notation===