Benjamin Leis ✅
benleis@mathstodon.xyz
<p>Systems programmer, parent, volunteer Math Circle leader and general math enthusiast. Team puzzles and <a href="https://mathstodon.xyz/tags/geometry" class="mention hashtag" rel="tag">#<span>geometry</span></a> Honorary Lord Semichord</p><p>Located in Seattle, WA<br />blog.mathoffthegrid.com</p>
Posts
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Post #4102603
#silentsunday
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Post #2996603
Do you happen to know what the best way to format polynomial division in mathjax is @christianp ?
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Post #2996602
https://mathoffthegrid.net/2026/05/13/parabola-tangents.html A new post exploring the many ways to find tangents to parabolas beyond calculus.
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Post #2996601
#silentsunday
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Post #2996600
#silentsunday
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Post #2996599
An approachable but still fun algebra warmup seen on reddit \[ 3^x⋅ 8^{\frac{x}{x+2}} = 6 \] Find *all* solutions for x #mathpuzzle
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Post #2996598
Doing some prep for next week and I&#39;m kicking myself for not noticing what was going on here for the longest time: Find the largest prime factor of 3^15 + 3^11 + 3^6 + 1 #mathpuzzle. #doh
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Post #2996597
For a moment mathstodon was recommending people to follow on its webui but now that&#39;s gone again.
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Post #2996596
A fun number theory problem For what positive integers is x^4 - 38x^2 + 169 prime? #numbertheory #mathpuzzle
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Post #2110128
Ok my blog experiments continue. I have a test version at https://benleis1.github.io/mathblog/ based on jekyll where I ported a few of my older posts and I&#39;m fairly happy Its markdown based, comments work and the layout looks good enough to start posting new material