#matlabambassador — Public Fediverse posts

The first flight simulator I played was PSION Flight Simulation on the ZX spectrum in 1982.
#MATLAB #MATLABambassador 1/6

Whatever your niggle… MathWorks wants to hear from you! 💬
👉 https://uk.mathworks.com/products/usability/sign-up.html
Get to play with new features before they launch… and maybe address your niche need! 🎉
#MATLAB #MATLABambassador 3/3

🧵 I've been working with #MATLAB2025a since pre-release, and it's time to share what's new and exciting (..to me at least!) #MATLAB #MATLABambassador 1/6

Terry Pratchett gave us octarine - the magical 8th colour of the spectrum, visible only to wizards and of course cats 🐱. UC Berkeley researchers have discovered "olo" - a real colour 🎨 that exists outside standard human vision… so far visible to only 5 people in the world! ✨

#MATLAB #MATLABambassador
James Fong and colleagues used Psychtoolbox (the MATLAB toolbox that I owe my job too!) to control their RGB projector during the colour matching experiments.

Started with fft() for quick and dirty noise colour estimation in our biological motion power law work. Alas more data doesn't make it more accurate 📊 Not ideal when chasing subtly divergent movement signatures in Parkinson's and Autism. #MATLAB #MATLABambassador
We talked about noise colour (purple, blue, white, pink, red, black, i.e. α [-2,-1,0,1,2,3] when 1/f^α) way back in October: https://x.com/dagmarfraser/status/1846235091707580864

https://twitter.com/dagmarfraser/status/1879294713477435423 /We did a thread/g about MATLAB becoming a 'moon' 🌙 of Jupyter earlier this year

#MATLAB #MATLABambassador #Python #DataScience 1/5

Way back in October 2024 we had a chat about Making Noise! 🔊 #MATLAB #MATLABambassador

https://x.com/dagmarfraser/status/1846235091707580864 1/5

🧠 At the https://twitter.com/TheCHBH neuroimaging centre we use the FieldTrip toolbox for MEG/EEG analysis. Here's why this open-source powerhouse is essential for modern neuroscience... #MATLAB #MATLABAmbassador

💻 FieldTrip empowers researchers with command-line scripting for maximum flexibility. No fancy GUI to learn only to abandon when things get serious and scriptable. 1/4

🧪 For vision researchers and psychologists -- having precise control of audio & visual production is vital. You can't measure a reaction time if you don't know when a beep or flash begins! #MATLAB #MATLABAmbassador #psychtoolbox

💻 The humble PC can flash and beep, but can it be a research-grade? Maybe.. whilst high-level languages like #MATLAB are delightfully easy to use, they abstract away hardware control. Low-level languages like C give full and perilous! 1/6

📊 Delightful new preprint reveals a meta *power law* in physics! The mathematical symbols & operators we use to describe nature's laws... follow their own mathematical pattern! #MATLAB #MATLABAmbassador

(image from New Scientist)

Constantin et al. (2024) analysed equations from physics textbooks, Wikipedia's named equations, and cosmology papers. Rather than random symbol frequencies, they discovered an exponential pattern! 🤓 https://arxiv.org/abs/2408.11065 1/5

What lies between a function and its derivatives? In kinematic terms; between Position and Velocity? Between Velocity and Acceleration? We can see a pattern in d^N/dt^N... but what if N was 0.5? 🤔 #MATLAB #MATLABAmbassador

This very question was put by L'Hopital to Leibniz in 1695! His response: "An apparent paradox, from which one day useful consequences will be drawn." 📚 1/6

Making all the right noises...

MATLAB has wgn for White (Gaussian) Noise and pinknoise for Pink..

The power spectral density (PSD) of Pink is 1/f and so drops off as f increases (-10dB/dec as pictured). #MATLAB #MATLABAmbassador 1/6

What does https://twitter.com/KelloggsUKI 's Rice Crispies have to do with kinematics?

Differentiation of Position with respect to time gives successively; Velocity, Acceleration… and for those of us doing Kinematics you'll likely know Jerk.. what is next? #MATLAB #MATLABAmbassador

If you guessed the 1930s era Rice Crispies' mascots Snap, Crackle and Pop – you were right.
https://en.wikipedia.org/wiki/Fourth,_fifth,_and_sixth_derivatives_of_position#/media/File:Time_derivatives_of_position.svg 1/7

Preparing a #MATLAB github repository to pair with a publication, or just to understand yourself in 6 months!! Make it easy to understand! Beyond inline comments the directory structure of the source code can be made more illuminating... #MATLABAmbassador

There is an excellent in-depth guide to that and more in "A concise guide to reproducible MATLAB projects" to make folders for disparate elements of your code https://rse.shef.ac.uk/blog/2022-05-05-concise-guide-to-reproducible-matlab/ 1/4