Math Misery
@mathmisery.bsky.social
Mathematician in Industry, Fractional Executive, Math Education
#MTBoS #elemmathchat #iTeachMath #mathsky #mathchat #mathed #educoach #datascience #machinelearning #EduSky
#MTBoS #elemmathchat #iTeachMath #mathsky #mathchat #mathed #educoach #datascience #machinelearning #EduSky
a computer that only talks about mouthwash, a gargle language model
computer that only talks about canals, a barge language model
November 8, 2025 at 4:03 PM
a computer that only talks about mouthwash, a gargle language model
Reposted by Math Misery
I'll be hosting December's Carnival of Maths (#246) at tommaths.blogspot.com.
To do it well, I need YOUR submissions! If you've read, written or created something (in the last month or so) on a mathsy theme, find the link to the submission form here: aperiodical.com/carnival-of-...
#MathsToday
To do it well, I need YOUR submissions! If you've read, written or created something (in the last month or so) on a mathsy theme, find the link to the submission form here: aperiodical.com/carnival-of-...
#MathsToday
November 4, 2025 at 10:05 AM
I'll be hosting December's Carnival of Maths (#246) at tommaths.blogspot.com.
To do it well, I need YOUR submissions! If you've read, written or created something (in the last month or so) on a mathsy theme, find the link to the submission form here: aperiodical.com/carnival-of-...
#MathsToday
To do it well, I need YOUR submissions! If you've read, written or created something (in the last month or so) on a mathsy theme, find the link to the submission form here: aperiodical.com/carnival-of-...
#MathsToday
more fodder for @billarama.bsky.social
What would the world look like if we changed the value of pi? Whether in the real world or a game environment, the answer is complex
How an Error in Cult Classic Game Doom Sparked New Appreciation for Pi
What would the world look like if we changed the value of pi? Whether in the real world or a game environment, the answer is complex
www.scientificamerican.com
October 30, 2025 at 1:10 PM
more fodder for @billarama.bsky.social
Reposted by Math Misery
The Discrete Fourier Transform confuses people. I tried to simplify it. This new guide is an attempt. It covers the basics. Judge for yourself.
guides.datainquiry.dev/Discrete_Fou...
#DataScience #SignalProcessing
guides.datainquiry.dev/Discrete_Fou...
#DataScience #SignalProcessing
October 29, 2025 at 5:13 AM
The Discrete Fourier Transform confuses people. I tried to simplify it. This new guide is an attempt. It covers the basics. Judge for yourself.
guides.datainquiry.dev/Discrete_Fou...
#DataScience #SignalProcessing
guides.datainquiry.dev/Discrete_Fou...
#DataScience #SignalProcessing
today is a nice silly date for some number fun
10/10/25
10 = 5*2
25 = 5^2
and if you want to make one of those stupid viral math problems because of ambiguous notation, then resolve this:
5*2/5*2/5^2 = ? Is it 1/25 or 4?
also, 1010 as a base 2 number is 8 + 2 = 10 :)
10/10/25
10 = 5*2
25 = 5^2
and if you want to make one of those stupid viral math problems because of ambiguous notation, then resolve this:
5*2/5*2/5^2 = ? Is it 1/25 or 4?
also, 1010 as a base 2 number is 8 + 2 = 10 :)
October 10, 2025 at 10:24 AM
today is a nice silly date for some number fun
10/10/25
10 = 5*2
25 = 5^2
and if you want to make one of those stupid viral math problems because of ambiguous notation, then resolve this:
5*2/5*2/5^2 = ? Is it 1/25 or 4?
also, 1010 as a base 2 number is 8 + 2 = 10 :)
10/10/25
10 = 5*2
25 = 5^2
and if you want to make one of those stupid viral math problems because of ambiguous notation, then resolve this:
5*2/5*2/5^2 = ? Is it 1/25 or 4?
also, 1010 as a base 2 number is 8 + 2 = 10 :)
Data Modeling event in DC called the Washington Copulas
Mathematical Finance event in Wellington called the New Zealand All Black-Scholes
Combinatorics event in Flushing called the New York Stem
October 10, 2025 at 8:41 AM
Data Modeling event in DC called the Washington Copulas
Combinatorics event in Flushing called the New York Stem
Numerical Linear Algebra event in Florida called the Tampa Bay Rayleigh quotients
Probability Theory event in Nevada called the Las Vegas Sample Spaces
October 9, 2025 at 11:24 PM
Combinatorics event in Flushing called the New York Stem
Reposted by Math Misery
Numerical Linear Algebra event in Florida called the Tampa Bay Rayleigh quotients
Probability Theory event in Nevada called the Las Vegas Sample Spaces
Back-to-back topology events in the Twin Cities called the Minnesota Hopf Lynx and the Minnesota Wild Knots
October 9, 2025 at 10:50 PM
Numerical Linear Algebra event in Florida called the Tampa Bay Rayleigh quotients
Reposted by Math Misery
Computational algebra event in Ontario called the Toronto Maple
Back-to-back topology events in the Twin Cities called the Minnesota Hopf Lynx and the Minnesota Wild Knots
Differential equation solvers event in Alberta called the Edmonton Euler Method
October 9, 2025 at 9:54 PM
Computational algebra event in Ontario called the Toronto Maple
Reposted by Math Misery
Differential equation solvers event in Alberta called the Edmonton Euler Method
Simulation event in Ohio called The Cleveland Brownian Motion
Algebraic number theory event in Southern California called The Los Angeles Ramified Primes
October 9, 2025 at 9:50 PM
Differential equation solvers event in Alberta called the Edmonton Euler Method
Reposted by Math Misery
An Apollonian geometry event in Wisconsin called The Green Bay Circle Packers
October 9, 2025 at 5:24 PM
An Apollonian geometry event in Wisconsin called The Green Bay Circle Packers
Simulation event in Ohio called The Cleveland Brownian Motion
Algebraic number theory event in Southern California called The Los Angeles Ramified Primes
Higher-dimensional quadric surfaces event in Washington state called The Seattle Superconics
October 9, 2025 at 9:38 PM
Simulation event in Ohio called The Cleveland Brownian Motion
Reposted by Math Misery
So another example of this perhaps doi.org/10.1098/rsos...
The natural selection of bad science | Royal Society Open Science
Poor research design and data analysis encourage false-positive findings. Such poor
methods persist despite perennial calls for improvement, suggesting that they result
from something more than just m...
doi.org
October 1, 2025 at 3:32 PM
So another example of this perhaps doi.org/10.1098/rsos...
Reposted by Math Misery
Enjoy this square rollin' 'round a non-regular pentagon.
August 5, 2025 at 4:55 PM
Enjoy this square rollin' 'round a non-regular pentagon.
Reposted by Math Misery
Here is another of my favorite triangle things
August 2, 2025 at 9:08 AM
Here is another of my favorite triangle things
Reposted by Math Misery
Enjoy this pentagon rolling around an internal equilateral triangle.
August 1, 2025 at 11:36 PM
Enjoy this pentagon rolling around an internal equilateral triangle.
I had a boss who would say "apples and elephants" and that's been my phrase ever since
An English phrase for describing two things (or people) that are completely different is “like chalk and cheese.” A similar phrase in Czech is jako nebe a dudy. It means “like heaven and bagpipes.”
July 26, 2025 at 3:33 PM
I had a boss who would say "apples and elephants" and that's been my phrase ever since
Reposted by Math Misery
Enjoy this pentagon rolling around a square.
July 25, 2025 at 10:27 AM
Enjoy this pentagon rolling around a square.
A fun little thing you can do with this is to chain various Pythagorean triples into a larger sum of squares. For example,
13^2 + 84^2 = 85^2
and knowing that 5 * 17 = 85
we also have (5*17)^2 + (12*17)^2 = (13*17)^2 by scaling (5, 12, 13)
so, then we have 13^2 + 84^2 + 204^2 = 221^2
#math
13^2 + 84^2 = 85^2
and knowing that 5 * 17 = 85
we also have (5*17)^2 + (12*17)^2 = (13*17)^2 by scaling (5, 12, 13)
so, then we have 13^2 + 84^2 + 204^2 = 221^2
#math
Happy Pythagorean Triple Day!
7^2 + 24^2 = 25^2
How to generate a Pythagorean Triple when the small side is a prime number:
p^2 + ((p^2 - 1)/2)^2 = ((p^2 + 1)/2)^2
so the triple is (p, (p^2 - 1)/2, (p^2 + 1)/2)
5^2 + 12^2 = 13^2 (notice 12 + 13 = 5^2)
11^2 + 60^2 = 61^2 (60 + 61 = 11^2)
#math
7^2 + 24^2 = 25^2
How to generate a Pythagorean Triple when the small side is a prime number:
p^2 + ((p^2 - 1)/2)^2 = ((p^2 + 1)/2)^2
so the triple is (p, (p^2 - 1)/2, (p^2 + 1)/2)
5^2 + 12^2 = 13^2 (notice 12 + 13 = 5^2)
11^2 + 60^2 = 61^2 (60 + 61 = 11^2)
#math
July 25, 2025 at 6:04 AM
A fun little thing you can do with this is to chain various Pythagorean triples into a larger sum of squares. For example,
13^2 + 84^2 = 85^2
and knowing that 5 * 17 = 85
we also have (5*17)^2 + (12*17)^2 = (13*17)^2 by scaling (5, 12, 13)
so, then we have 13^2 + 84^2 + 204^2 = 221^2
#math
13^2 + 84^2 = 85^2
and knowing that 5 * 17 = 85
we also have (5*17)^2 + (12*17)^2 = (13*17)^2 by scaling (5, 12, 13)
so, then we have 13^2 + 84^2 + 204^2 = 221^2
#math
Happy Pythagorean Triple Day!
7^2 + 24^2 = 25^2
How to generate a Pythagorean Triple when the small side is a prime number:
p^2 + ((p^2 - 1)/2)^2 = ((p^2 + 1)/2)^2
so the triple is (p, (p^2 - 1)/2, (p^2 + 1)/2)
5^2 + 12^2 = 13^2 (notice 12 + 13 = 5^2)
11^2 + 60^2 = 61^2 (60 + 61 = 11^2)
#math
7^2 + 24^2 = 25^2
How to generate a Pythagorean Triple when the small side is a prime number:
p^2 + ((p^2 - 1)/2)^2 = ((p^2 + 1)/2)^2
so the triple is (p, (p^2 - 1)/2, (p^2 + 1)/2)
5^2 + 12^2 = 13^2 (notice 12 + 13 = 5^2)
11^2 + 60^2 = 61^2 (60 + 61 = 11^2)
#math
July 24, 2025 at 1:19 PM
Happy Pythagorean Triple Day!
7^2 + 24^2 = 25^2
How to generate a Pythagorean Triple when the small side is a prime number:
p^2 + ((p^2 - 1)/2)^2 = ((p^2 + 1)/2)^2
so the triple is (p, (p^2 - 1)/2, (p^2 + 1)/2)
5^2 + 12^2 = 13^2 (notice 12 + 13 = 5^2)
11^2 + 60^2 = 61^2 (60 + 61 = 11^2)
#math
7^2 + 24^2 = 25^2
How to generate a Pythagorean Triple when the small side is a prime number:
p^2 + ((p^2 - 1)/2)^2 = ((p^2 + 1)/2)^2
so the triple is (p, (p^2 - 1)/2, (p^2 + 1)/2)
5^2 + 12^2 = 13^2 (notice 12 + 13 = 5^2)
11^2 + 60^2 = 61^2 (60 + 61 = 11^2)
#math
saw a cute problem about numbers of the form
(a + b + c + d)^3 = abcd where the right hand side is a concatenation of the four numbers a, b, c, d.
wrote some code and this one tickled me
188^3
= (6 + 64 + 46 + 72)^3
= (66 + 4 + 46 + 72)^3
= (66 + 44 + 6 + 72)^3
= 6644672
#math
(a + b + c + d)^3 = abcd where the right hand side is a concatenation of the four numbers a, b, c, d.
wrote some code and this one tickled me
188^3
= (6 + 64 + 46 + 72)^3
= (66 + 4 + 46 + 72)^3
= (66 + 44 + 6 + 72)^3
= 6644672
#math
July 2, 2025 at 4:55 PM
saw a cute problem about numbers of the form
(a + b + c + d)^3 = abcd where the right hand side is a concatenation of the four numbers a, b, c, d.
wrote some code and this one tickled me
188^3
= (6 + 64 + 46 + 72)^3
= (66 + 4 + 46 + 72)^3
= (66 + 44 + 6 + 72)^3
= 6644672
#math
(a + b + c + d)^3 = abcd where the right hand side is a concatenation of the four numbers a, b, c, d.
wrote some code and this one tickled me
188^3
= (6 + 64 + 46 + 72)^3
= (66 + 4 + 46 + 72)^3
= (66 + 44 + 6 + 72)^3
= 6644672
#math
fun little #math thing with kiddo
56/7 = 8
and that gives, in order, 5678
now the hunt for any other such examples with a single arithmetic operation and integers [of course, 56 = 7*8 also works].
56/7 = 8
and that gives, in order, 5678
now the hunt for any other such examples with a single arithmetic operation and integers [of course, 56 = 7*8 also works].
May 29, 2025 at 2:21 PM
fun little #math thing with kiddo
56/7 = 8
and that gives, in order, 5678
now the hunt for any other such examples with a single arithmetic operation and integers [of course, 56 = 7*8 also works].
56/7 = 8
and that gives, in order, 5678
now the hunt for any other such examples with a single arithmetic operation and integers [of course, 56 = 7*8 also works].
Integration is transmutation :)
Actually rational functions are just bizarre little things. Like, I made you from polynomials and you want to produce logarithms and inverse trig functions in your integrals? Sure, why not?
I love that the derivative of arctan(x) is a rational function. Like, what?
May 15, 2025 at 12:08 AM
Integration is transmutation :)
"What am I going to do with a Bachelor's in Mathematics other than teach?", they wailed. Well, kids, let's now also add "become Pope" to the long list of things people do :D
[ok, yes, Pope Leo XIV might have done a few things in the theological space, but, he holds a degree in math, too!]
[ok, yes, Pope Leo XIV might have done a few things in the theological space, but, he holds a degree in math, too!]
May 8, 2025 at 7:13 PM
"What am I going to do with a Bachelor's in Mathematics other than teach?", they wailed. Well, kids, let's now also add "become Pope" to the long list of things people do :D
[ok, yes, Pope Leo XIV might have done a few things in the theological space, but, he holds a degree in math, too!]
[ok, yes, Pope Leo XIV might have done a few things in the theological space, but, he holds a degree in math, too!]
