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CES 2025
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I just got a set of these pencils, from Mathsgear. The number printed on it is prime, and will remain so as you sharpen the pencil from the left, all the way down to the last digit, 7. Here is a recursive construction of all such truncatable primes. TruncatablePrimes[p_Integer?PrimeQ] := With[{digits = IntegerDigits[p]}, {p, TruncatablePrimes /@ (FromDigits /@ (Prepend[digits, #] & /@ Range[9]))}
Introduction I recently came across a post for a computer program that in some fields intends to compete with the Wolfram Language and which has a toolbox for Machine Learning. I wanted to compare the work described with the workflow in Mathematica. The challenge is to classify old Japanese Characters from texts from the so-called Edo period: Style[StringTake[WikipediaData["Edo period"], 601], 16]
Recently I wrote a toy Wolfram Language interpreter as a way to learn more about Wolfram Language. I have implemented some basic language structure and built-in functions. I have hosted it on github. A simple term rewriting system with Wolfram Language's syntax Inspired by the book Write Yourself a Scheme in 48 Hours. I decide to write myself a simple Wolfram Language-like interpreter to learn mor
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