maths
Mathstodon.xyz is a Mastodon server for people who love mathematics. We have LaTeX rendering in the web interface!
This server has a post size of up to 1729 characters, and has been online since 2017.
You can find out more at https://mathstodon.xyz/about or contact the admin @christianp
#FeaturedServer #Mathematics #Maths #Math #Mastodon #Fediverse #FreeFediverse
I never really got the jargon for “divisor,” “numerator,” etc. into my head… Basic stuff, I know. 
Subtraction: minuend - subtrahend = difference
Addition: addend + addend = sum
Division: dividend / divisor = quotient
Division: numerator / denominator = ratio
Multiplication: multiplier × mutliplicand = product
And now we both know! Never again will we get confused reading elementary math texts. 
#lang_en #math #maths
When coding Python in British:
`import math as maths`
LaTeX, TikZ, "tkz-euclide", OutilsGeomTikZ et quelques autres petits outils maison... et on peut faire des merveilles pour les fiches de géométrie. 🤩
Des constructions précises, propres, entièrement paramétriques et modifiables à volonté.
Typiquement le genre de vieille fiche que j'ai très envie de remasteriser en 100 % LaTeX. 😍
The Fourier Transform is a mathematical operation that transforms a function of time (or space) into a function of frequency. It decomposes a complex signal into its constituent sinusoidal components, each with a specific frequency, amplitude, and phase. This is particularly useful in many fields, such as signal processing, physics, and engineering, because it allows for analysing the frequency characteristics of signals. The Fourier Transform provides a bridge between the time and frequency domains, enabling the analysis and manipulation of signals in more intuitive and computationally efficient ways. The result of applying a Fourier Transform is often represented as a spectrum, showing how much of each frequency is present in the original signal.
\[\Large\boxed{\boxed{\widehat{f}(\xi) = \int_{-\infty}^{\infty} f(x)\ e^{-i 2\pi \xi x}\,\mathrm dx, \quad \forall\xi \in \mathbb{R}.}}\]
Inverse Fourier Transform:
\[\Large\boxed{\boxed{ f(x) = \int_{-\infty}^{\infty} \widehat f(\xi)\ e^{i 2 \pi \xi x}\,\mathrm d\xi,\quad \forall x \in \mathbb R.}}\]
The equation allows us to listen to mp3s today. Digital Music Couldn’t Exist Without the Fourier Transform: http://bit.ly/22kbNfi
#Fourier #FourierTransform #Transform #Time #Frequency #Space #TimeDomain #FrequencyDomain #Wavenumber #WavenumberDomain #Function #Math #Maths #JosephFourier #Signal #Signals #FT #IFT #DFT #FFT #Physics #SignalProcessing #Engineering #Analysis #Computing #Computation #Operation #ComplexSignal #Sinusoidal #Amplitude #Phase #Spectra #Spectrum #Pustam #Raut #PustamRaut #EGR #Mathstodon #Mastodon #GeoFlow #SpectralMethod
🏳️⚧️OMFG, they're so stupid. 🙈
RFK Jr: "President Trump has a different way of calculating. If… There's two ways of calculating percentages. If you have a $600 drug and you reduce it to $10, that's a 600% reduction."
Adam Ries[e] is rotating so hard in his grave.
via Aaron Rupar on bsky
https://bsky.app/profile/atrupar.com/post/3mk3tcbc4ek26
Mathstodon.xyz is a Mastodon server for people who love maths, and includes LaTeX rendering in the web interface. Maths chat is especially welcome, but any topic of conversation following the code of conduct is OK.
This server has a post size of up to 1729 characters.
You can find out more at https://mathstodon.xyz/about or contact the admin account @christianp
#FeaturedServer #Mathematics #Maths #Math #Mastodon #Fediverse #FreeFediverse
𝗠𝗮𝘁𝗵𝘀 𝗣𝗿𝗼𝗼𝗳𝘀 𝗶𝗻 𝗟𝗲𝗮𝗻 - 𝗙𝗶𝗿𝘀𝘁 𝗦𝘁𝗲𝗽𝘀
You don't need to be a PhD to write simple maths proofs in Lean.
This course takes you from a complete beginner, and gives you enough confidence to read and write simple proofs. Each chapter has one exercise, designed to build confidence, not destroy it!
youtube: https://www.youtube.com/@LeanFirstSteps/videos
free content: https://leanfirststeps.blogspot.com/p/contents.html
And today is a #Mathematics day in our podcast. More than a year ago I had a great conversation with Ric Crossman, about #Decolonising #Maths and how mistreated they were by the right wing press #Math #Decolonise
RE: https://mastodon.social/@climatenewsnow/116688186377550000
i need y’all to take a bat at every #techbro and anybody who said there should be no funding for #liberalArts degrees, that the future of college education is #STEM as in SCIENCE, technology, ENGINEERING and maths.
the biggest con was that T: there is no #technology without #arts, #crafts and #maths first. science and engineering are more specialized aspects of the other three. computers are a technology, not #tech.
#SiliconValley is a wasteland that should be nuked into oblivion.