This article walks through building a minimalist VisiCalc clone in C, covering the core data model (cells, grid), a recursive‑descent parser for formulas, dependency handling via repeated recalculation, and a text‑based UI using ncurses. It explains how to parse cell references, evaluate expressions, and implement a simple modal interface with commands, editing, and navigation. The post culminates in a working terminal spreadsheet that supports basic functions like @SUM, @ABS, @INT, and @SQRT, and demonstrates how to render the grid, status bar, and edit line. It also discusses limitations and possible extensions, linking to the full implementation on GitHub.
Calc is an interactive calculator providing large numeric calculations and programmable functionality. It supports various operators, functions, variable assignments, and complex numbers.
A tool to estimate the memory requirements and performance of Hugging Face models based on quantization levels.
The author, inspired by his dad's old HP 25 calculator, designs and 3D prints a new battery holder to revive the vintage device.
A space on Hugging Face showcasing the LLM-Model-VRAM-Calculator, a tool designed to calculate the required VRAM for a specific machine learning model.
