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#maths

95 posts56 participants3 posts today
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Stephen Brooks 🦆

Today's stupidity: I have a function where f(0)=correct and f(1)=wrong. I create a complicated way of evaluating f(0)+f'(0), which is the first order approximation to "wrong", rather than just f(0), which I wanted.
#physics #maths

Public
Paysages Mathématiques

"My main guide in my work was the constant search for a perfect coherence, a complete harmony that I could see behind the turbulent surface of things, and which I patiently strove to uncover, without ever being tired of it. It was a keen sense of "beauty", surely, that was my flair and my only compass. My greatest joy was not so much to contemplate it when it appeared in full light [...]" – Alexandre Grothendieck (1928-2014)
#quote #mathematics #math #maths

Photographic portrait of Alexandre Grothendieck, and a quote : "My main guide in my work was the constant search for a perfect coherence, a complete harmony that I could see behind the turbulent surface of things, and which I patiently strove to uncover, without ever being tired of it. It was a keen sense of "beauty", surely, that was my flair and my only compass. My greatest joy was not so much to contemplate it when it appeared in full light, as to see it gradually emerge from the cloak of shadow and mists where it liked to hide constantly."
Public
barefootstache

Looking into welding a hollow steel d20 dice aka icosahedron.

There are three factors that are dependent on the final result:

- thickness of the steel sheet metal,
- length of the equilateral triangle, and
- diameter as twice the circumradius.

Looked at sheet metal thickness of 2-5 mm and triangle length of 75-200 mm where the end resulting weight is 0.78-13.9 kg without the reduction/addition of welding and using steel density of 0.008 g/mm^3. The diameter respected to the triangle length is 143-380 mm.

#crafting#maths#ttrpg
Public
drnereide

On 26 March 1913, Paul Erdős was born: one of the most prolific and influential mathematicians of the 20th century, a legendary figure not only for his academic contributions, but also for his eccentric lifestyle...

More at my post➡️ www.lanostra-matematica.org/2025/03/paul...

🧪 #histsci #maths
lanostra-matematica.org/2025/0

www.lanostra-matematica.orgPaul Erdős: The Wandering Genius Who Loved Only Numbers  On 26 March 1913, Paul Erdős was born: one of the most prolific and influential mathematicians of the 20th century, a legendary figure not...
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Marcus Green

I have been using the #Moodle #STACK #maths related question intensely over the last few months. I had idly thought that it would be good to have an automated way of giving inputs and prts “sensible names”, i.e. instead of ans1, ans2 etc I could rename the input fields with things like width, area and have all references updated appropriately.

It turns out that the feature already exists under the menu Tidy inputs and PRT’s, wonderful!

Screenshot of the Moodle STACK question type local menu with a red arrow pointing to the lowest item which is Tidy Inputs and PRT's
#mathematics#math#edtech
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