Posts Tagged ‘math’

Slime Molds Remember—But Do They Learn? | WIRED

May 24, 2026

https://www.wired.com/story/slime-molds-rememberbut-do-they-learn/

Physarum solver: A biologically inspired method of road-network navigation – ScienceDirect

May 24, 2026

https://www.sciencedirect.com/science/article/abs/pii/S0378437106000963

slime mold network

Tero, A., Kobayashi, R., & Nakagaki, T. (2006). Physarum solver: A biologically inspired method of road-network navigation. Physica a Statistical Mechanics and Its Applications, 363(1), 115–119. https://doi.org/10.1016/j.physa.2006.01.053

Law of Sines Ambiguous Case – MathBitsNotebook(Geo)

May 17, 2026

https://mathbitsnotebook.com/Geometry/TrigApps/TAUsingLawSines.html

🔎 if you have SSA can you use Law of cosSines instead of law of sines – Google Search

May 17, 2026

QT:{{”
Yes, you can use the Law of Cosines for SSA (Side-Side-Angle), though it is generally faster and more standard to use the Law of Sines. [1] When using the Law of Cosines for SSA, you will set up your formula to find the missing side, which will leave you with a quadratic equation. Solving that quadratic can reveal \(0\), \(1\), or \(2\) positive solutions, which helps you identify the exact number of possible triangles (the “ambiguous case”)
“}}

https://share.google/uJQInuwzCXlbe1q11

3.3 The Law of Cosines – Trigonometry

May 5, 2026

https://louis.pressbooks.pub/trigonometry/chapter/3-3-the-law-of-cosines/#:~:text=In%20the%20ambiguous%20case%2C%20SSA%2C%20the%20law,equation%20yields%20a%20solution%20of%20the%20triangle. QT:{{”
In the ambiguous case, SSA, the law of sines is easier to apply, but there will be two possible angles, and we must check each angle to see if it produces a solution. Using the law of cosines involves solving a quadratic equation, but each positive solution of the equation yields a solution of the triangle.
“}}

what is converse and contrapositive and inverse – Google Search

March 16, 2026

https://www.google.com/search?q=what+is+converse+and+contrapositive+and+inverse&sca_esv=9c862ab14c0bc3f3&sxsrf=ANbL-n7MPap6WyRGVMwHeJQzr9bfjsJAWA%3A1773607979085&ei=Kxy3aefzBOGmptQP47af6QU&biw=1445&bih=958&ved=0ahUKEwintcHM5KKTAxVhk4kEHWPbJ10Q4dUDCBE&uact=5&oq=what+is+converse+and+contrapositive+and+inverse&gs_lp=Egxnd3Mtd2l6LXNlcnAiL3doYXQgaXMgY29udmVyc2UgYW5kIGNvbnRyYXBvc2l0aXZlIGFuZCBpbnZlcnNlMgYQABgWGB4yBhAAGBYYHjIGEAAYFhgeMgYQABgWGB4yBhAAGBYYHjIGEAAYFhgeMgYQABgWGB4yCxAAGIAEGIYDGIoFMgsQABiABBiGAxiKBUi7D1DNAljLDXABeAGQAQCYAdMBoAGzCqoBBTYuNS4xuAEDyAEA-AEBmAINoALXCsICChAAGLADGNYEGEfCAggQABiABBiiBMICCBAAGKIEGIkFmAMAiAYBkAYIkgcFNy41LjGgB9NtsgcFNi41LjG4B9UKwgcGMC4xMi4xyAcagAgA&sclient=gws-wiz-serp

if P then Q : P => Q
converse : Q => P
inverse : ~P => ~Q
contrapositive : ~Q => ~P. (logically true when P => Q is true)

Microsoft Word – Seven.new.doc

February 15, 2026

https://condor.depaul.edu/ppereira/sym/Notes/Seven.pdf
7 frieze pattern

math video

January 11, 2026

3Blue1Brown. (2020, August 19). Group theory, abstraction, and the 196,883-dimensional monster [Video]. YouTube.
https://www.youtube.com/watch?v=mH0oCDa74tE

https://www.youtube.com/watch?v=mH0oCDa74tE

is a rotation 180 degrees about the origin also a reflection – Google Search

December 9, 2025

https://www.google.com/search?q=is+a+rotation+180+degrees+about+the+origin+also+a+reflection&oq=is+a+rotation+180+degrees+about+the+origin+also+a+reflection&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIGCAEQRRg8MgYIAhBFGDwyBggDEEUYPNIBBzY2NWowajeoAgCwAgA&sourceid=chrome&ie=UTF-8

Yes, a 180-degree rotation about the origin is equivalent to a point reflection (or inversion) through the origin

Desmos | Graphing Calculator

February 26, 2024

https://www.desmos.com/calculator