### Room squares and Tournaments

A Room square is a variation on a Latin square. Room squares are named after Thomas Room, though there is an application to rooms as in compartments …

Room squares and Tournaments Read More
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# Math Problem Solution

### Room squares and Tournaments

### HCPCS (“hick pics”) codes

### Raging against the machine

### Dominoes in Unicode

### Detailed example of finite field arithmetic with prime power

### Costas arrays in Mathematica

### ISO 3166-1 2-letter and 2-letter country codes

### Finding similar world flags with Mathematica

### Costas arrays

### Tanya Khovanova’s Math Blog » Blog Archive » A Hat Trick

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A Room square is a variation on a Latin square. Room squares are named after Thomas Room, though there is an application to rooms as in compartments …

Room squares and Tournaments Read MoreHCPCS stands for Healthcare Common Procedure Coding System. HCPCS codes are commonly pronounced like “hick pics.” I was curious/afraid to see what DALL-E would create with the prompt “HCPCS hick …

HCPCS (“hick pics”) codes Read MoreRan across a great quote from Liv Boeree recently: The problem with raging against the machine is that the machine has learned to feed off rage. Someone …

Raging against the machine Read MoreI was spelunking around in Unicode and found that there are assigned characters for representing domino tiles and that the characters are enumerated in a convenient order. Here is the …

Dominoes in Unicode Read MoreThis post will give a detailed example of working in a field with nine elements. This is important because finite fields are not often treated concretely except for the case …

Detailed example of finite field arithmetic with prime power Read MoreA couple days ago I wrote about Costas arrays. In a nutshell, a Costas array of size n is a solution to the n rooks problem, with the added constraint …

Costas arrays in Mathematica Read MoreThe ISO 3166-1 standard defines three codes for each country: a 2-letter abbreviation, a 3-letter abbreviation, and a 3-digit code. The 2-letter abbreviations may be familiar because …

ISO 3166-1 2-letter and 2-letter country codes Read MoreA week ago I posted some pairs of similar flags on Twitter, and later I found that Mathematica’s CountryData database contains flag descriptions. So I thought I’d …

Finding similar world flags with Mathematica Read MoreThe famous n queens problem is to find a way to position n queens on a n×n chessboard so that no queen attacks any other. That is, no two queens …

Costas arrays Read MoreMy readers know that I love hat puzzles. This is why I decided to turn a number trick by Konstantin Knop (in Russian) into a hat trick. Hat Trick. The …

Tanya Khovanova’s Math Blog » Blog Archive » A Hat Trick Read More