Architects · Ages 18+ · advanced· 64-bit

How Programs Really Run

High-level languages hide a great deal, and most of the time that is a gift. But two hidden mechanisms surface in real bugs again and again: the stack that keeps track of function calls, and the way decimal numbers are squeezed into bits. Open both and watch them work.

2 lessons 26 min 140 XP

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Lessons

1🪆The call stack and recursionEvery function call gets a frame on a stack. Recursion is a function stacking up frames of itself.13 min70 XP
2🎯Why 0.1 + 0.2 is not 0.3Decimal numbers are stored in binary scientific notation. Most of them can only be approximated.13 min70 XP