Euler's formula facts for kids
In complex analysis, Euler's formula, also sometimes called Euler's relation, is an equation involving complex numbers and trigonometric functions. More specifically, it states that
where x is a real number, e is Euler's number and i is the imaginary unit.
It makes a relation between trigonometric functions and exponential functions of complex numbers. It is named after Leonhard Euler, who published it in 1748. When he published it, Euler said that the angle must be a real number. Later, it turned out that the formula also works if the angle is not a real number, but a complex one.
When the angle is and , Euler's formula becomes and , respectively.
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See also
In Spanish: Fórmula de Euler para niños
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Euler's formula Facts for Kids. Kiddle Encyclopedia.