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jjnevis 🦋

@jjnevis.com

440 followers 535 following 2.6K posts

Solutioneer, parent, friend Freedom Environment Education mathican.net #mathican #onus bluesky : signal : guthub : opensrc

Posts Replies Media

jjnevis 🦋 @jjnevis.com · 4h

I was on holiday skiing with my beautiful family when the Russian hell state attacked freedom. Slava Ukraini!

Feb 23 2023

jjnevis 🦋 @jjnevis.com · 5h

Spitballing with Mathican mathican.net #mathematics

Spitballing with Mathican

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jjnevis 🦋 @jjnevis.com · 02/10/2026

The monad is the centre of everything. mathican.net

Monad

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jjnevis 🦋 @jjnevis.com · 30/09/2026

I thought you guys might find this interesting. The subscript number is just an alternative notation for roots.

Rationalising factor

More rationalising factors

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jjnevis 🦋 @jjnevis.com · 30/09/2026

For anyone following along, here's the proof of that formula:

Proof of area of parabolic arch

jjnevis 🦋 @jjnevis.com · 27/09/2026

More explanation of Mathican

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jjnevis 🦋 @jjnevis.com · 27/09/2026

In Mathican, we begin our "turn" around the until circle clockwise from North. Cos is then read straight off the vertical (y) axis and sin off the horizontal (x) axis. + and - fall perfectly into place. Tan is simply defined as sin/cos, but more interestingly gradient becomes cos/sin. mathican.net

The Mathican number plane

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jjnevis 🦋 @jjnevis.com · 25/09/2026

mathican.net #mathematics #math #maths #mathican

Natural logarithm of 1 plus Poco is poco

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jjnevis 🦋 @jjnevis.com · 25/09/2026

mathican.net

mathican.net

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jjnevis 🦋 @jjnevis.com · 24/09/2026

Ah yes, I did indeed make a silly mistake! What about this?

Corrected solution to question 1

jjnevis 🦋 @jjnevis.com · 24/09/2026

They really are orcs

Lavrov

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jjnevis 🦋 @jjnevis.com · 22/09/2026

Thought I'd show how Mathican can unpick the square root of 484:

484 root 2

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jjnevis 🦋 @jjnevis.com · 22/09/2026

Solved using Mathican:

Solution to math problem, solved using Mathican

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jjnevis 🦋 @jjnevis.com · 21/09/2026

What a fabulous problem sheet. I've tackled the first one in Mathican (because math is more fun in Mathican), but I get a different answer to number 10? If interested, mathican.net explains the language. Thanks for the problems!

Answers to sheet one.

jjnevis 🦋 @jjnevis.com · 21/09/2026

My attempt at question 1. I've almost certainly made a mistake!

Attempt at solving complex number quadratic

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jjnevis 🦋 @jjnevis.com · 21/09/2026

You can borrow mine, Rollo:

Rollo

jjnevis 🦋 @jjnevis.com · 20/09/2026

Just my beautiful dog, Rollo. I love him unconditionally. (Just to be clear - he's not dead, I'm just appreciating him 🤣😄😂)

Rollo

jjnevis 🦋 @jjnevis.com · 19/09/2026

Problem sheet from event I'm at: (mathican.net)

Mathican problems

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jjnevis 🦋 @jjnevis.com · 17/09/2026

mathican.net A puzzle...

A Mathican puzzle

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jjnevis 🦋 @jjnevis.com · 17/09/2026

Exponentiation fun mathican.net

exponentiation fun

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jjnevis 🦋 @jjnevis.com · 17/09/2026

Thought you might find this interesting...

Mathican example of rationalising factor

Mathican examples of rationalising factors

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jjnevis 🦋 @jjnevis.com · 17/09/2026

Rationalising factor examples using Mathican mathican.net mathematics math

Mathican examples of rationalising factors

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jjnevis 🦋 @jjnevis.com · 17/09/2026

mathican.net mathematics mathican math

Math problem

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jjnevis 🦋 @jjnevis.com · 17/09/2026

Find the rationalising factor of 1 plus cube root of three.

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jjnevis 🦋 @jjnevis.com · 13/09/2026

I don't know what to say. Talking about Mathican...

Post

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jjnevis 🦋 @jjnevis.com · 12/09/2026

Gemini response to "Mathican"

Google ai response to Mathican

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jjnevis 🦋 @jjnevis.com · 12/09/2026

Mathican

Mathican

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jjnevis 🦋 @jjnevis.com · 09/09/2026

Mathican=> fundamental relations

Mathican fundamental relations

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jjnevis 🦋 @jjnevis.com · 08/09/2026

A-aye slop

United States of Scotland

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jjnevis 🦋 @jjnevis.com · 07/09/2026

A-aye slop

United States of Scotland

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jjnevis 🦋 @jjnevis.com · 07/09/2026

A-aye

United States of Scotland

jjnevis 🦋 @jjnevis.com · 02/09/2026

Reminds me of...

Aloysius O'Hare

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jjnevis 🦋 @jjnevis.com · 01/09/2026

Factors of 45² Who knew the trick? #math #maths #mathican #mathematics

Factors of 45²

jjnevis 🦋 @jjnevis.com · 01/09/2026

Mathican

Mathican

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jjnevis 🦋 @jjnevis.com · 30/08/2026

Solution

jjnevis 🦋 @jjnevis.com · 29/08/2026

Something is afoot. Stay safe Konstantin

Konstantin

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jjnevis 🦋 @jjnevis.com · 22/08/2026

Perfect line up of commentators.

Perfect line up of commentators.

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jjnevis 🦋 @jjnevis.com · 08/08/2026

Nah, dinnae bother, communication is key.

Letter order doesn't matter

jjnevis 🦋 @jjnevis.com · 03/08/2026

@channel4news.bsky.social WTAF Channel 4 news? Where's the outrage at Russians bombing Ukrainian apartment buildings?

C4news covers bomb on beach incident

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jjnevis 🦋 @jjnevis.com · 27/07/2026

Mixed numbers are indeed for grocers and should not be used in pure mathematics, IMHO.

Solution

jjnevis 🦋 @jjnevis.com · 25/07/2026

Solution

jjnevis 🦋 @jjnevis.com · 24/07/2026

Random Numatican thoughts

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jjnevis 🦋 @jjnevis.com · 21/07/2026

@channel4news.bsky.social WTAF Channel 4 news!? Crimea is NOT Russia, very poor from you guys.

Channel 4 news showing Crimea as part of Russia.

jjnevis 🦋 @jjnevis.com · 20/07/2026

Solution

jjnevis 🦋 @jjnevis.com · 15/07/2026

Can ring pulls used to be discarded also. Progress.

Ring pull

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jjnevis 🦋 @jjnevis.com · 09/07/2026

Can anyone explain this?... (Subscript 2 simply means square root)

Solution

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jjnevis 🦋 @jjnevis.com · 09/07/2026

Solution

jjnevis 🦋 @jjnevis.com · 06/07/2026

@realjakebroe.bsky.social Saw this and thought of you.

"the champions of democracy"

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jjnevis 🦋 @jjnevis.com · 05/07/2026

Solution

jjnevis 🦋 @jjnevis.com · 26/06/2026

Solution