If you're curious about this, betterexplained has a good article on Euler's Formula: https://betterexplained.com/articles/intuitive-understanding-of-eulers-for

If you're curious about this, betterexplained has a good article on Euler's Formula: https://betterexplained.com/articles/intuitive-understanding-of-eulers-formula/ https://betterexplained.com/articles/intuitive-understanding... As a bonus, understanding how it is related to rotation may give you a new insight on the Fourier Transform: https://betterexplained.com/articles/an-interactive-guide-to-the-fourier-transform/ https://betterexplained.com/articles/an-interactive-guide-to...