#Trig #Math The Pyramid Hotel recently installed a triangular pool. One side of the pool is 24', another side is 26', and the angle in between the two sides is 87°. If the hotel manager needs to order a cover for the pool, the cost is $35 per sq ft, how much will they spend?

Eleanor Robson, Neither Sherlock Holmes nor Babylon: A Reassessment of Plimpton 322, Historia Mathematica, Volume 28, Issue 3, 2001,Pages 167-206, ISSN 0315-0860, https://doi.org/10.1006/hmat.2001.2317 #OpenAccess #OA #History #Histodon #Histodons #Maths #Math #Mathematics #Babylon #AncientNearEast #Pythagoras #Plimpton322 #Trigonometry #Trig @histodon @histodons @science

A question for the #MtBoS community ...

At what age do students meet sine and cosine?

Do you use distances on a Unit Circle, or some other definition?

Thanks ... if you're happy to do so, please boost for reach.

Extra hashtags for searching ...

#MathEd #MathsEd #Trig #Trigonometry

Curious how you can find the length of a triangle's median?

Appollonius has you covered ✅️

#math #trig #art #trigonometry #learning #derivation #proof #geometry #education

https://youtu.be/6yGHW7Qj4Vc

If you can't remember which triangles to draw to find the values of trigonometric functions at common angles, maybe this short video with a cat in (Brazilian) Portugese will help. Glad there's still some joy on the internet these days. #cats #math #trig

https://youtu.be/03lO4XlgQYA

arctan(1) + arctan(2) + arctan(3) = π. Proof without words or numbers. https://www.geogebra.org/m/TTydqG4C #geogebra @geogebra #mtbos #iteachmath #trigonometry #trig #edtech #math #mathematics #MathTeacher

#trig is going to be death of me, I hate it so much

"""
The versine of an angle is 1 minus its cosine. There are several related functions, most notably the coversine and haversine.
"""

https://en.wikipedia.org/wiki/Versine

#TIL #trig #maths

via Calcuator forensics history question
https://www.hpmuseum.org/forum/thread-16689.html

More work with #trig rhythmic computer. Added a rotational pattern shift operation.

This program consists of 3 cells. Cell 1 is a metapattern that transforms the bitpattern stored in cell 3. In this case, it applies 2 transformations: a forward rotational shift, and a command that updates the original pattern with the new cell.

Cell 2 is used to loop back to cell 1.

Cell 3 is the initial bit pattern of size 32.

Created a reference card for my #trig rhythm computer using #btprnt, and my #macintosh font renderer. The file is procedurally generated using the #janet scripting language.