Sloc, Cloc and Code: scc is a very fast accurate code counter with complexity calculations and COCOMO estimates written in pure Go
A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app.
Python library for converting Python calculations into rendered latex.
BLAS-like Library Instantiation Software Framework
CasADi is a symbolic framework for numeric optimization implementing automatic differentiation in forward and reverse modes on sparse matrix-valued computational graphs. It supports self-contained C-code generation and interfaces state-of-the-art codes such as SUNDIALS, IPOPT etc. It can be used from C++, Python, Matlab/Octave, Julia or Javascript
Complex period comparisons
MetPy is a collection of tools in Python for reading, visualizing and performing calculations with weather data.
Owl - OCaml Scientific Computing @ https://ocaml.xyz
Decimal number implementation written in pure Rust suitable for financial and fixed-precision calculations.
The easy PHP Library for calculating holidays
This project is a merge of several common DateTime operations on the form of extensions to System.DateTime, including natural date difference text (precise and human rounded), holidays and working days calculations on several culture locales.
An implementation of the Fermionic Neural Network for ab-initio electronic structure calculations
A Java math library for OpenGL rendering calculations
A Julia library for efficient tensor computations and tensor network calculations. ITensors.jl is supported by the Simons Foundation's Flatiron Institute.
A python library for quantum information and many-body calculations including tensor networks.
nifty command line date and time utilities; fast date calculations and conversion in the shell
NWChem: Open Source High-Performance Computational Chemistry
Calculate your position size based on the risk and account size and execute your trades with this free MetaTrader expert advisor.
Error propagation calculator and library for physical measurements. It supports real and complex numbers with uncertainty, arbitrary precision calculations, operations with arrays, and numerical integration.
Ruby business day calculations
Crypto-currency tax calculator with support for all popular wallets, exchanges, explorers and migration from other crypto tax platforms
Self-hosted house planner: true-scale 2D floor plan, 3D, satellite map overlay, sewer, electrical, water and underfloor heating with calculations, priced bill of materials. React + PHP, no database. By the team behind homedesignsai.pro
Solar PV yield and loss estimator with reproducible engineering calculations.
An R package is designed to perform all noncompartmental analysis (NCA) calculations for pharmacokinetic (PK) data.
Mathcad 2026 Engineering Math Setup for Windows 11 and 10: Install Guide
Explore sleep, training, mood and nutrition together using local records, traceable calculations and optional MCP tools for your preferred AI client.
A console-based JavaScript prototype of a space mission simulator, built to practice objects, arrays, functions, calculations, random events, and conditional logic.
WannierNLQG is a Julia package for nonlinear responses and quantum-geometric quantities from Wannier tight-binding models.
π₯ **AI-Powered Keto Meal Planner & Macro Calculator.** An algorithmic approach to automated low-carb meal planning, personalized net carb calculations, and custom fat-burning protocols without manual tracking.