38 Open Source Calculations Software Projects
Free and open source calculations code projects including engines, APIs, generators, and tools.
React Pivot 968 ⭐
React-Pivot is a data-grid component with pivot-table-like functionality for data display, filtering, and exploration.
Expressionevaluator 144 ⭐
A Simple Math and Pseudo C# Expression Evaluator in One C# File. Can also execute small C# like scripts
Mathexpressions.net 60 ⭐
:heavy_division_sign: Library for parsing math expressions with rational numbers, finding their derivatives and compiling an optimal IL code
Koshercocoa 45 ⭐
My Objective-C port of KosherJava. KosherCocoa enables you to perform sunrise-based and sunset-based calculations for Jewish prayer and calendar.
Positionsizecalculator 45 ⭐
Calculate your position size based on risk and account size before every trade. Includes an indicator and a trading script.
Sunrise Sunset 29 ⭐
Sunrise and sunset time calculation for given coordinates. ~1kb minified with zero dependencies.
Stl Calc 25 ⭐
Simple and available way to calculate the cost of 3D printing STL model. Analysis of 3D models. STL format.
Pisces 23 ⭐
Pisces is a time series database, desktop application, command line tool, and webapp. Pisces is designed to organize, graph, and analyze natural resource data that varies with time: gauge height, river flow, water temperature, etc.
3D Bin Packing 18 ⭐
:truck: Personal project for packing the goods efficiently using some heuristic algorithms :train:
Openrocketengine 13 ⭐
openrocketengine is an opensource program used to iterate liquid engine design
Loan Payments Calculator 13 ⭐
A small library for calculating loan payments using various configurations, works.
Chemical Engineering Thermodynamics 15 ⭐
User Defined Functions for multi-component thermodynamic calculations of the Predictive Peng-Robinson 1978 Equation of State. Clean VBA functions - no UI changes and no pop up messages. Errors are reported in cell comments. Import Math.bas, ModArraySupport.bas and ChemE_Functions.bas into PData.xlsx and save as xlsm or simply download PData.xlsm.
Dependencygraph 13 ⭐
A very light weight dependency graph for systems with massive calculation complexities or scheduling systems
Neat Form 19 ⭐
Build form on Android using JSON schema; also includes view validation and skip logic.
Clinical Calculation API 10 ⭐
presents a range of clinical calculations as a REST API, avoiding the need for the calculations to be implemented locally in applications