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3.8.2 Spherical Polygons, Equation 3.6

Open steimich96 opened this issue 1 year ago • 2 comments

Formula 3.6 for calculating the area of a spherical triangle: Link

I might be misunderstanding but this formula does not make sense to me. Is this a typo? If it is correct, it would maybe help to add some context for deriving the formula (maybe in the Appendix).

Following from the code, the numerator should be dot(a, cross(b, c)).

steimich96 avatar Jan 04 '24 10:01 steimich96

I came to the same conclusion, I think it is a typo I created a PR with the corresponding change and explanations here

massile avatar Jan 12 '24 13:01 massile

It is a typo, thanks for reporting! I'll push an update to the online errata and the book website in a little while.

@steimich96 let me know how you want to be credited in the errata.

mmp avatar Jan 25 '24 21:01 mmp