helix just saw your entry on the euler's formula talk and on helix there is a detail missing a spiral needs the three dimensions and when you say the complex exponential its understood to be stuck in just two making circles if we say r c the complex plane then the spiral is e it t cos t i sin t t cos t sin t t so your observation in the helix needs more details and i am not sure how this should be explained consider moving the issue to the talk page so that what is on the page is more reliable