the.com/trigonometry
The dark art of measuring triangles you'll swear you never use, then quietly use forever.
means The branch of math relating a triangle's angles to its side lengths, mostly via sine, cosine, and tangent.
from From Greek trigonon (triangle) and metron (measure), coined in 1595 by German mathematician Bartholomeo Pitiscus.
Ancient rootsBabylonians and Greeks used it for astronomy millennia ago.
Sine's mistranslationSine comes from a Latin misreading meaning bay or fold.
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