In #MathsToday, Year 10 did some Pie Charts, including some pie chart puzzles from: www.stem.org.uk/resources/li...
And Year 8 did some 'Best Buy'ing.
I also had a nice conversation about methods for factorising non-monic quadratics. #TeamGrid
And Year 8 did some 'Best Buy'ing.
I also had a nice conversation about methods for factorising non-monic quadratics. #TeamGrid
November 3, 2026 at 7:57 PM
In #MathsToday, Year 10 did some Pie Charts, including some pie chart puzzles from: www.stem.org.uk/resources/li...
And Year 8 did some 'Best Buy'ing.
I also had a nice conversation about methods for factorising non-monic quadratics. #TeamGrid
And Year 8 did some 'Best Buy'ing.
I also had a nice conversation about methods for factorising non-monic quadratics. #TeamGrid
In #MathsToday, Year 10 did some expanding and factorising of quadratics.
Lots of grids were drawn.
(Tasks from interwovenmaths.com/quadratics)
Lots of grids were drawn.
(Tasks from interwovenmaths.com/quadratics)
November 4, 2026 at 4:16 PM
In #MathsToday, Year 10 did some expanding and factorising of quadratics.
Lots of grids were drawn.
(Tasks from interwovenmaths.com/quadratics)
Lots of grids were drawn.
(Tasks from interwovenmaths.com/quadratics)
Plenary — Non-linear Graphs
#maths #mathsteacher #UKMathsChat #GCSEMaths #Plenary #MathsDiscussion #MathsStarter #NonLinearGraphs #Quadratics #Algebra #Reasoning #ProblemSolving
#maths #mathsteacher #UKMathsChat #GCSEMaths #Plenary #MathsDiscussion #MathsStarter #NonLinearGraphs #Quadratics #Algebra #Reasoning #ProblemSolving
November 3, 2026 at 8:30 AM
Plenary — Non-linear Graphs
#maths #mathsteacher #UKMathsChat #GCSEMaths #Plenary #MathsDiscussion #MathsStarter #NonLinearGraphs #Quadratics #Algebra #Reasoning #ProblemSolving
#maths #mathsteacher #UKMathsChat #GCSEMaths #Plenary #MathsDiscussion #MathsStarter #NonLinearGraphs #Quadratics #Algebra #Reasoning #ProblemSolving
We had to learn this term in Australia but seeing this post reminded me that since moving here I've not mentioned definite quadratics at all
Almost at the end of #mathober but there's always time for an INDEFINITE QUADRATIC, which is today's prompt and here's a nice zine I made. Never heard of that meaning of "definite" before, but I guess it makes sense there'd be a term for it! PDF: https://katiesteckles.co.uk/mo27
October 27, 2026 at 11:38 PM
We had to learn this term in Australia but seeing this post reminded me that since moving here I've not mentioned definite quadratics at all
The flattened cubic is going to be a piecewise connected quadratic spline. Thus adjacent quadratics will have a point in common. Therefore I need that calculations concerning that point be done in a precision higher than the point itself.
October 28, 2026 at 8:59 AM
The flattened cubic is going to be a piecewise connected quadratic spline. Thus adjacent quadratics will have a point in common. Therefore I need that calculations concerning that point be done in a precision higher than the point itself.
The flattened cubic is going to be a piecewise connected quadratic spline. Thus adjacent quadratics will have a point in common. Therefore I need that calculations concerning that point be done in a precision higher than the point itself.
October 28, 2026 at 8:59 AM
The flattened cubic is going to be a piecewise connected quadratic spline. Thus adjacent quadratics will have a point in common. Therefore I need that calculations concerning that point be done in a precision higher than the point itself.
🔄 Updated Arxiv Paper
Title: Constant Step Sizes for Muon-Type Spectral Optimizers on Strongly Convex Quadratics
Authors: Pratik Jawanpuria, Bhabatosh Garai, Bamdev Mishra
Read more: https://arxiv.org/abs/2610.27747
Title: Constant Step Sizes for Muon-Type Spectral Optimizers on Strongly Convex Quadratics
Authors: Pratik Jawanpuria, Bhabatosh Garai, Bamdev Mishra
Read more: https://arxiv.org/abs/2610.27747
October 21, 2026 at 8:02 AM
🔄 Updated Arxiv Paper
Title: Constant Step Sizes for Muon-Type Spectral Optimizers on Strongly Convex Quadratics
Authors: Pratik Jawanpuria, Bhabatosh Garai, Bamdev Mishra
Read more: https://arxiv.org/abs/2610.27747
Title: Constant Step Sizes for Muon-Type Spectral Optimizers on Strongly Convex Quadratics
Authors: Pratik Jawanpuria, Bhabatosh Garai, Bamdev Mishra
Read more: https://arxiv.org/abs/2610.27747
🔄 Updated Arxiv Paper
Title: Convergence of cyclic steepest descent for quadratics with two distinct eigenvalues
Authors: Yu Li, Qihang Wang
Read more: https://arxiv.org/abs/2610.15335
Title: Convergence of cyclic steepest descent for quadratics with two distinct eigenvalues
Authors: Yu Li, Qihang Wang
Read more: https://arxiv.org/abs/2610.15335
October 19, 2026 at 8:02 AM
🔄 Updated Arxiv Paper
Title: Convergence of cyclic steepest descent for quadratics with two distinct eigenvalues
Authors: Yu Li, Qihang Wang
Read more: https://arxiv.org/abs/2610.15335
Title: Convergence of cyclic steepest descent for quadratics with two distinct eigenvalues
Authors: Yu Li, Qihang Wang
Read more: https://arxiv.org/abs/2610.15335
Handed quadratics
October 17, 2026 at 1:00 AM
Handed quadratics
I used to love quadratics but I was lucky: my elementary school was picked as a "typical blue collar school" for experimental New Math studies. I was changing oil & doing light maintenance on our car years before I learned to drive. But not losing things...that's up there with not forgetting things.
October 17, 2026 at 11:45 PM
I used to love quadratics but I was lucky: my elementary school was picked as a "typical blue collar school" for experimental New Math studies. I was changing oil & doing light maintenance on our car years before I learned to drive. But not losing things...that's up there with not forgetting things.
📚 New Arxiv Paper
Title: On Completely Positive and Semidefinite Programs for Moment Bounds on Maximum of Random Quadratics
Authors: Buse Unluturk, Divya Padmanabhan, Karthik Natarajan
Read more: https://arxiv.org/abs/2610.19684
Title: On Completely Positive and Semidefinite Programs for Moment Bounds on Maximum of Random Quadratics
Authors: Buse Unluturk, Divya Padmanabhan, Karthik Natarajan
Read more: https://arxiv.org/abs/2610.19684
October 15, 2026 at 8:02 AM
📚 New Arxiv Paper
Title: On Completely Positive and Semidefinite Programs for Moment Bounds on Maximum of Random Quadratics
Authors: Buse Unluturk, Divya Padmanabhan, Karthik Natarajan
Read more: https://arxiv.org/abs/2610.19684
Title: On Completely Positive and Semidefinite Programs for Moment Bounds on Maximum of Random Quadratics
Authors: Buse Unluturk, Divya Padmanabhan, Karthik Natarajan
Read more: https://arxiv.org/abs/2610.19684
Buse Unluturk, Divya Padmanabhan, Karthik Natarajan: On Completely Positive and Semidefinite Programs for Moment Bounds on Maximum of Random Quadratics https://arxiv.org/abs/2610.19684 https://arxiv.org/pdf/2610.19684 https://arxiv.org/html/2610.19684
October 15, 2026 at 6:49 AM
Buse Unluturk, Divya Padmanabhan, Karthik Natarajan: On Completely Positive and Semidefinite Programs for Moment Bounds on Maximum of Random Quadratics https://arxiv.org/abs/2610.19684 https://arxiv.org/pdf/2610.19684 https://arxiv.org/html/2610.19684
In #MathsToday I went slightly mad and described quadratics that don't equal zero as "having no rizz". At least they remembered it?
Also started chanting frequency polygon (midpoint, frequency). Yr 11 mocks frying my brain.
Also started chanting frequency polygon (midpoint, frequency). Yr 11 mocks frying my brain.
October 13, 2026 at 4:55 PM
In #MathsToday I went slightly mad and described quadratics that don't equal zero as "having no rizz". At least they remembered it?
Also started chanting frequency polygon (midpoint, frequency). Yr 11 mocks frying my brain.
Also started chanting frequency polygon (midpoint, frequency). Yr 11 mocks frying my brain.
Yu Li, Qihang Wang: Cyclic steepest descent is $R$-superlinearly convergent for almost every initialization on two-spectrum quadratics https://arxiv.org/abs/2610.15335 https://arxiv.org/pdf/2610.15335 https://arxiv.org/html/2610.15335
October 14, 2026 at 6:50 AM
Yu Li, Qihang Wang: Cyclic steepest descent is $R$-superlinearly convergent for almost every initialization on two-spectrum quadratics https://arxiv.org/abs/2610.15335 https://arxiv.org/pdf/2610.15335 https://arxiv.org/html/2610.15335
#Mathstoday
Yr11 have been looking at quadratics as a whole, turning points, roots and Y-Intercept. They definitely need more practice but they are getting there.
Yr11 have been looking at quadratics as a whole, turning points, roots and Y-Intercept. They definitely need more practice but they are getting there.
October 7, 2026 at 3:29 PM
#Mathstoday
Yr11 have been looking at quadratics as a whole, turning points, roots and Y-Intercept. They definitely need more practice but they are getting there.
Yr11 have been looking at quadratics as a whole, turning points, roots and Y-Intercept. They definitely need more practice but they are getting there.
You/they might like some of the puzzles/challenges at the end of my packs sites.google.com/view/sxpmath... 1.3 for surds and 1.4 for quadratics
sxpmaths - AS Pure
1. Fundamentals
sites.google.com
October 7, 2026 at 12:22 PM
You/they might like some of the puzzles/challenges at the end of my packs sites.google.com/view/sxpmath... 1.3 for surds and 1.4 for quadratics
Bit late but on Tuesday lower set Year 11 were feeling really confident plotting quadratics, cubics and reciprocals as well as solving simple quadratics graphically thanks to the brilliant resources on mathspad. Such a great site! www.mathspad.co.uk #MathsToday
MathsPad New for September
www.mathspad.co.uk
October 7, 2026 at 10:02 AM
Bit late but on Tuesday lower set Year 11 were feeling really confident plotting quadratics, cubics and reciprocals as well as solving simple quadratics graphically thanks to the brilliant resources on mathspad. Such a great site! www.mathspad.co.uk #MathsToday
I put together a slide deck of questions on turning points of quadratics, available for free on my site.
You may find it useful for practice / recall in the future.
southportmaths.co.uk/gcsealgebra/
You may find it useful for practice / recall in the future.
southportmaths.co.uk/gcsealgebra/
GCSE Algebra -
Whiteboard Workouts Highly focused — each whiteboard question is deliberately designed to target a single skill, making it easy to see exactly where pupils are in their progression. Easy to use — simp...
southportmaths.co.uk
October 7, 2026 at 6:19 PM
I put together a slide deck of questions on turning points of quadratics, available for free on my site.
You may find it useful for practice / recall in the future.
southportmaths.co.uk/gcsealgebra/
You may find it useful for practice / recall in the future.
southportmaths.co.uk/gcsealgebra/
I wrote a program to do quadratics on my Atari 400. It didn't work well, because I didn't have a good understanding of the issue (and was just learning to code!), but someone else could have written on that did work correctly.
October 7, 2026 at 1:57 AM
I wrote a program to do quadratics on my Atari 400. It didn't work well, because I didn't have a good understanding of the issue (and was just learning to code!), but someone else could have written on that did work correctly.
The intended solution method is definitely unspecified! I think it can be done in a (fairly) elementary way with a bit of knowledge of quadratics/discriminants, but I also considered rotating to make the axes of symmetry parallel to the coordinate axes.
And I like @mqb2766.bsky.social's method too!
And I like @mqb2766.bsky.social's method too!
October 6, 2026 at 6:32 AM
The intended solution method is definitely unspecified! I think it can be done in a (fairly) elementary way with a bit of knowledge of quadratics/discriminants, but I also considered rotating to make the axes of symmetry parallel to the coordinate axes.
And I like @mqb2766.bsky.social's method too!
And I like @mqb2766.bsky.social's method too!
Oh, I see what you mean. Yeah. The point is that the only quantization here is for the fact that we're rendering this on a pixel grid, and not being turned into a mesh, first.
The internal representation is a system of equations with quadratics. So they *are* vectors until rendered. XD
The internal representation is a system of equations with quadratics. So they *are* vectors until rendered. XD
October 6, 2026 at 5:30 AM
Oh, I see what you mean. Yeah. The point is that the only quantization here is for the fact that we're rendering this on a pixel grid, and not being turned into a mesh, first.
The internal representation is a system of equations with quadratics. So they *are* vectors until rendered. XD
The internal representation is a system of equations with quadratics. So they *are* vectors until rendered. XD
In #MathsToday was a second delivery of my quadratics in disguise lesson, this time to the non further-maths class. Also included this time around were tricky quadratic substitutions into quartic equations - with thanks to @bewilda.bsky.social.
October 5, 2026 at 5:24 PM
In #MathsToday was a second delivery of my quadratics in disguise lesson, this time to the non further-maths class. Also included this time around were tricky quadratic substitutions into quartic equations - with thanks to @bewilda.bsky.social.
Plenary — Expanding and Factorising
#maths #mathsteacher #UKMathsChat #GCSEMaths #Plenary #MathsDiscussion #ProblemSolving #Reasoning #ExpandingAndFactorising #Quadratics #Algebra
#maths #mathsteacher #UKMathsChat #GCSEMaths #Plenary #MathsDiscussion #ProblemSolving #Reasoning #ExpandingAndFactorising #Quadratics #Algebra
October 5, 2026 at 7:30 AM
Plenary — Expanding and Factorising
#maths #mathsteacher #UKMathsChat #GCSEMaths #Plenary #MathsDiscussion #ProblemSolving #Reasoning #ExpandingAndFactorising #Quadratics #Algebra
#maths #mathsteacher #UKMathsChat #GCSEMaths #Plenary #MathsDiscussion #ProblemSolving #Reasoning #ExpandingAndFactorising #Quadratics #Algebra
If you’re serious about algebra that builds understanding, not procedure, this is the book an entire school system came back to.
Kiselev’s Algebra, Part I — first faithful English translation from the original Russian edition:
Kiselev’s Algebra, Part I — first faithful English translation from the original Russian edition:
Kiselev's Algebra I | Russian Math
Kiselev's Algebra Part I, complete in English. 126 sections, 239 exercises, relative numbers through quadratics. PDF $44.95, print on Amazon.
russianmathbooks.com
October 4, 2026 at 2:00 PM
If you’re serious about algebra that builds understanding, not procedure, this is the book an entire school system came back to.
Kiselev’s Algebra, Part I — first faithful English translation from the original Russian edition:
Kiselev’s Algebra, Part I — first faithful English translation from the original Russian edition: