A person who works in crystallography would know more. I have read that x-ray crystallography actually done by a woman whose name I forgot, was used to prove that DNA is a helix thru measurement of angles of diffraction of the x-rays.
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Superficially.
because i said they do !
plane trigonometry spherical trigonometry
trigonometry
The main kinds are plane trigonometry and solid trigonometry. The latter will include trigonometry in hyper-spaces.