Binary
Hex, Oct, Binary: Mental Models
How to read and convert bases without a calculator app — patterns that stick.
Math & Numbers for Developers
Base conversion, floating-point pitfalls, bitwise tricks — the stuff they skip in bootcamps but you hit in production.
Guides
Short, practical articles you can use at the keyboard.
Float
Why 0.1 + 0.2 ≠ 0.3
IEEE 754 in practice: epsilon comparisons, formatting money, and when to use decimals.
Tools
Bit Masks & Flags in APIs
Designing and reading flag enums without losing your mind — and without breaking backwards compatibility.