Q Calc is an easy-to-use, and useful calculator designed for mobile devices (Android, iPhone) for many common scenarios in life. It offers calculations for tips, total after sales tax, total after discount and savings, and cashback. Each of these main features and sub-features are explained below. At the top of the screen, there’s a navigation […]
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Cup Drop Paradox – Answer and Proof
This is the conclusion of the original post about Tony’s Cup Drop Paradox. If you haven’t read the puzzle already, please do so first, take a stab (you can submit your response anonymously and see what others said) below: Ok, assuming you have given it a shot and perhaps even nailed it, here’s my answer […]
Farm Tycoon is Live! (Free, web/mobile game)
🚜Farm Tycoon: A Resource Management Strategy Game🚜 Embark on a farming adventure. Make strategic choices, manage your resources, brave unpredictable events, and aim for the highest profit to top the leaderboard 💵💰! Your journey begins by setting up your farm: choose your name, the size of your land, the crop you want to grow, and […]
Cup Drop Paradox: Who Finishes First?
The Backstory I came up with this puzzle variant after watching a video posted on social media of two girls racing to put cups in a bucket. The winner was clearly due to a faster player but made me think what if I took that variable out and introduced something less obvious. And so here […]
Python in Excel — Introduction (how and why)
Python in Excel is a feature that allows users to write and execute Python code directly within Excel spreadsheets. This integration enables advanced data analysis, automation, and visualization without needing external add-ins or additional purchases. Advanced, complex visualizations that are not possible directly in Excel is now possible with Python code that uses powerful libraries […]
Bull’s-eye Diagrams — Dyamic, Data-Driven
A Bull’s-eye diagram in general terms, is a conceptual model designed to bring focus to the most important items from a collection of items. The diagram helps us prioritize various tasks and therefore often used in strategic decision-making and brainstorming situations. As on a dartboard, the diagram has an inner most smallest circle, and multiple […]
The “coolest code” Bill Gates ever wrote
As part of celebration of Microsoft’s 50th anniversary on April 4th, 2025, Bill Gates has shared the original source code for Altair BASIC. He described Altair BASIC as “the coolest code I’ve ever written”. Altair BASIC was developed in 1975 by Bill Gates and Paul Allen for the Altair 8800 microcomputer. This was Microsoft’s first-ever […]
Stock Data Acquisition And Analyses (Python, Excel)
The stock market is a prominent topic in recent public discussion. Rather than focus on the market itself, this post examines methods for acquiring stock data, reformatting it for use, generating various calculations and visualizations to facilitate analyses, and yielding insights. I will share my approach and point out some useful metrics and observations along […]
Do you know your leap years? Are you sure?
Many people remember to figure out whether a year is a leap year or not by checking if a year is divisible by four. If it is, it’s a leap year, meaning, the month of February of that year has 29 days and the year has 366 days, and if not, the month of February […]
Area Charts – Edgy to Smooth (various options)
Area charts are a great option when we need to show trends over time while also emphasizing the magnitude of values. They allow us to compare multiple series or variables easily, while the filled area illustrates the magnitude of values, and they also show how a part contributes to the whole over time. In this […]