Recursively perform calculations on an object according to a list of definitions.
Pivot table calculation engine for Univer Pro.
Formula parsing, dependency management, and calculation engine for Univer.
Tax calculation engine for personal financial planning
Spreadsheet Calculation Engine
Excel 365 calculation engine -- WASM binding
Optical calculation engine for an eye model, with ESM, CJS, and UMD builds.
A comprehensive, Excel-compatible formula calculation engine supporting 300+ functions.
Sales calculation engine by Softseti
A headless TypeScript spreadsheet calculation engine.
Calculation Engine Services
Cost calculation engine for LLM API usage — pricing, token counting, and cost estimation
DeepZoom Calculation engine
A modern, open-source, client-side genetic calculation engine for reptile breeding.
Vedic Astrology MCP Server — birth charts, compatibility, divorce risk, spouse prediction, and more via MarriageAstro's calculation engine
Chilean payroll calculation engine — AFP, health, tax, unemployment, Previred, and more
Quaility measure calculation engine
Advanced numerology calculation engine for tarot and esoteric applications
Chilean payroll calculation engine — AFP, health, tax, unemployment, Previred, and more
The [AIA Environmental Accounting Platform (EAP)](https://www.aiaeap.com/) is an on-farm GHG emissions calculation engine developed by [Agricultural Innovation Australia](https://aginnovationaustralia.com.au). Free access to AIA’s open-source code is supp
A connect like calculation engine
A high-performance Vedic Astrology calculation engine in TypeScript (Clean Room implementation).
A cart calculation engine for buffalo burger restaurants
Excel-like formula calculation engine implemented in JavaScript
Engineering calculator for ruby
Soroban makes it easy to extract and execute formulas from Excel spreadsheets. It rewrites Excel formulas as Ruby expressions, and allows you to bind named variables to spreadsheet cells to easily manipulate inputs and capture outputs.
Reduxco is a general purpose graph reduction calculation engine for those non-linear dependency flows that normal pipelines and Rack Middleware-like architectures can't do cleanly.
Soroban makes it easy to extract and execute formulas from Excel spreadsheets. It rewrites Excel formulas as Ruby expressions, and allows you to bind named variables to spreadsheet cells to easily manipulate inputs and capture outputs.
Pulo is a (back-of-envelope) calculator for engineering. It understands physical quantities, their dimensions and units.
a tiny spreadsheet calculation engine
Ruby bindings for ballistics-engine - A high-performance Rust-based ballistics calculations library with 4-DOF trajectory modeling, wind deflection, atmospheric effects, and more.
Solidus Engine for Ship compliant tax calculation service
A ruby client for calling ICE - Immunization Calculation Engine (http://www.hln.com/ice/)
An engine that finds words from a set of letters and calculates the scrabble score
Rails 3 Engine for calculating shipping rates initially supporting UK Royal Mail
A Rails engine for monitoring Claude Code usage, calculating costs using LiteLLM pricing, and displaying usage analytics in your Rails app
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