Last post, I talked about e being used in other stuff. Well, the first example is this!!! e^ia = cos a +isin a. What?!?!?!?! That basically means that e to the power of sqrt(-1)*a (an angle expressed in radians/angles (but be sure to include the degree sign!)) equals the cosine of a plus sqrt(-1)*sin a. … Continue reading Well, e.
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