gananayantra-rusting

gananayantra is a professional-grade, multi-industry calculation engine written in Rust. It provides reusable, pure-function calculators across diverse domains including Finance, Health, Energy, Physics, and more.

Key Features

• Library-First: All logic is exposed as pure functions. No forced CLI or I/O.
• Safe: Uses Result<T, String> for error handling.
• Comprehensive: Covers 10+ industries with 50+ calculators.
• Zero-Dependency Core: Minimal dependencies (only chrono for dates).

Modules

• Finance: ROI, TVM, Compound Interest, Loans, Tax, Retirement, Auto Loans
• Health: BMI, BMR, Body Fat, Pregnancy, Fitness
• Energy: Power Consumption, Electricity Cost
• Physics: Fluid Dynamics (Reynolds), Kinematics (KE/PE)
• Logistics: Freight Volumetric Weight, EOQ
• Climate: Carbon Footprint (Electricity, Fuel)
• Geo: Earth Distance (Haversine), Horizon
• Water: Pressure at Depth, Flow Rate
• Space: Orbital Velocity, Escape Velocity, Period
• Math: Statistics, Geometry, Advanced Math
• Utilities: Lifestyle tools, Percentage, Password Gen (Basic)
• Specialized: Building, Electronics, Networking, Science

Installation

Add this to your Cargo.toml:

[dependencies]
gananayantra-rusting = "1.2.0"

Quick Start

use gananayantra::finance::tvm::future_value;

fn main() {
    let fv = future_value(10_000.0, 0.08, 5).unwrap();
    println!("Future Value: {:.2}", fv);
}

Examples

Check the examples/ directory for usage of every module:

• examples/finance_tvm.rs
• examples/physics.rs
• examples/logistics.rs
• examples/climate.rs
• ...and many more.

Run an example:

cargo run --example physics

License

MIT