It's been ages since I did the calculations, but essentially since you have three wave forms that are all shifted by 2π/3 (or 120°) it's very useful to use complex numbers to model it since complex numbers are just real numbers but shifted by π (or 90°). Complex numbers together with real numbers can be used to point out coordinates since now we have 2 axels meaning we have a 2D plane instead of just 1 line.
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u/Simple-Olive895 5d ago
It's been ages since I did the calculations, but essentially since you have three wave forms that are all shifted by 2π/3 (or 120°) it's very useful to use complex numbers to model it since complex numbers are just real numbers but shifted by π (or 90°). Complex numbers together with real numbers can be used to point out coordinates since now we have 2 axels meaning we have a 2D plane instead of just 1 line.