Author profile
Colin Troy, Mathematics Reviewer

Colin Troy reviews the mathematical logic behind Daily Calculation's tools. He is a professional games mathematician with more than 25 years in the regulated UK gaming industry, currently Director of Mathematics at Light & Wonder, one of the world's largest gaming technology companies.
His day job is designing and verifying the probability models and payout mathematics behind commercial games: work where a calculation error is measured in real money, audited by regulators, and simply not allowed to happen.
That is the standard he applies here: every calculator he reviews is checked for correct formulas, sensible rounding, and results that hold up at the edges, not just in the easy middle cases.
- 25+years in regulated UK gaming
- BEng(Hons) Electronic Engineering
- Directorof Mathematics
Career
May 2024 – present
Director of Mathematics
Light & Wonder – iGaming (London, hybrid)
2018 – 2024
Head of Game Innovation and Maths
Blueprint Games Ltd (Derby)
2016 – 2017
Head of Game Innovation and Maths
Games Warehouse Ltd
2012 – 2016
Regulated Gaming Manager
Games Warehouse Ltd
2007 – 2012
Software Engineer
Games Warehouse Ltd (Derby)
1997 – 2007
Export Software Engineer
Bell-Fruit Games Ltd
Colin holds a BEng (Hons) in Electronic Engineering from the University of Hertfordshire (1997). His career spans hands-on game programming for UK and European markets, management of maths profiling and analysis, and leadership of mathematics teams building games played by millions, including some of the industry's best-known titles.
What Colin reviews on Daily Calculation
The calculation logic of each tool: formulas, order of operations, rounding rules and edge-case behaviour.
The published worked examples, checked independently so the page and the calculator can never disagree.
Each calculator's stated assumptions, so what the tool does and doesn't account for is spelled out honestly.
Reviewed content
Calculators carrying the “Mathematics reviewed by Colin Troy” byline will be listed here, each with its last-reviewed date, as reviews are completed.

