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Hans Woyda Semi Final vs Haberdashers

Déjà vu was a feature of the last Hans Woyda match report, and fittingly enough it reared its head again in Tuesday’s Semi Final against Haberdashers’ Boys’ School. This time, we have to go back to the 2023-24 Semi Final, when we welcomed Habs into St Paul’s for an exceedingly close game. In that match, St Paul’s were either tied or in the lead throughout, until Habs edged in front for the first time in the penultimate question and held off our U8th on the last question to extend their lead even further, knocking us out of the competition with a final score of 53 – 49. Two significant changes gave me hope that history wasn’t about to repeat itself. First, we were the ones making the long journey to the outskirts of Watford this time, as hosting duties had fallen to Habs for this match. Second, none of the current SPS team of Haoming (4 th ), Rafael (6 th ), Lucas (L8 th ) and Adavya (U8 th ) had been involved in that tragic loss. As the voyage northwards came to an end and we made our ...
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Hans Woyda Knockout Round 2 vs Queen Elizabeth’s School (with special guest!)

I found myself experiencing the strangest sense of déjà vu in the run-up to the second knockout round of the Hans Woyda competition this year. Once again, we were due to host Queen Elizabeth’s School for the quarter final, and once again, when finding a suitable date for the match I had to navigate Olympiads, Chess tournaments and Adavya’s return to the Romanian Master of Mathematics competition after remedy. With few options left before the 24 th  February deadline, we ended up being forced to schedule the match for the last day of half term, and to avoid keeping everyone from their holiday we came to the unorthodox conclusion that the best time to host the match would be during lunch break. So it was that the SPS team of Haoming (4 th ), Rafael (6 th ), Lucas (L8 th ) and Adavya (U8 th ) took their seats straight after period 4 to kick off the match. Last year we ended up winning against Queen Elizabeth’s, gaining an early lead and maintaining it until the end of the match, ...
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Maths Society Visiting Speaker: Owen Toller

This talk took us through one of the most counterintuitive ideas: that not every polynomial can be factorised in terms of its solutions and that the barrier for that is so low as to be the cubic. Starting with the quadratic, a base of knowledge we all know, Toller's exceptional talk then brought us to the cubic, explaining its quirks and how to reduce it to a form we all know, with a neat trick to turn it into a depressed cubic. He then used a clever method to split x into u+v and then made everything a quadratic. After following through the algebra, we transitioned into the quartic, having solved a few examples with both real and complex roots. For the quartic, the method was more complicated but doable all the same. Yet he posed the idea that the quintic cannot be solved with a formula. This took us into a tour of group theory, starting with what a group is and its symmetries, then moving to the symmetric group of n things. Then he posed a clever game where, knowing the roots of ...
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Hans Woyda Knockout Round 1 vs Harrow

The start of the spring term is always a bittersweet moment in the Hans Woyda calendar. The excitement of moving through to the knockout rounds is tempered by the knowledge that I will soon have to pick the final team of 4 from the superb squad of 12 pupils who took part in last term’s group stage matches. As ever, the selection trials were fiercely contested, and any of the 81 different possible teams would have stood us in good stead for the remainder of the competition, but eventually Haoming (4 th ), Rafael (6 th ), Lucas (L8 th ) and Adavya (U8 th ) emerged victorious. I had provided each of the team members with a set of practice questions for the journey which they eagerly worked through, swapping sheets with each other and comparing methods for the hardest questions, and at one point Adavya started loudly listing all of the squares from  16 2 to  29 2 to ensure he had them to hand in case he needed them later. The west London traffic and soporific drizzle had dampene...
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Maths Society: The heat equation

This talk took us on a tour through one of the most quietly powerful equations in mathematics: the heat equation. On the surface, it’s “just” a formula describing how temperature spreads through space over time. In reality, it turns out to be a kind of mathematical celebrity, popping up everywhere from physics to finance. The talk began by unpacking what the equation says. Temperature at a point changes depending on how curved the temperature is around it – in other words, heat flows from hotter regions to colder ones, smoothing things out. Partial derivatives made a cameo appearance here, framed intuitively as rates of change and curvature rather than scary symbols. Then came some history. Long before the equation became standard, heat was thought of as a weightless fluid (“caloric”). That changed thanks to Joseph Fourier, whose radical claim that any function – even jagged ones – could be written as a sum of sines and cosines initially got his work rejected. Awkward, given how fo...
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Maths Society Christmas Quiz (From Autumn Term)

To put a cap on a brilliant first term of MathsSoc, Yidong came up with a fantastic Christmas Quiz including a greatly enjoyed maths race. Adrenaline was flowing throughout this speed-based event, and while the difference was only made up of a few points, Team 1 (a name they accurately picked for themselves) took home a well-deserved win and a mountain of chocolates. A big thank you goes out to Yidong for entertaining us with this quiz, as well as all the people that have helped run and organise MathsSoc this term. It has been absolutely incredible, and I hope to see everyone there in 2026. -  Arié
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BMO1 Results 2025

It was another successful year for the students who qualified for the British Mathematical Olympiad Round 1 (BMO1). Of the 85 students who took part, 35 received merits, 25 received distinctions, and 7 students qualified for BMO2. Having 7 students qualify for BMO2 is a fantastic achievement, especially given that only around 100–120 students nationwide reach this stage each year. This is also the highest number of merits and distinctions the school has ever attained in BMO1. Well done to all the students who took part — your hard work is truly paying off! Here is a selection of questions from the six problems on the BMO1 2025 paper, courtesy of UKMT. The full paper and mark scheme are available here :
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