Wenfeng Xing · projects

Project journey

Financial Calculation Engine

93 words1 min read#Rust#Finance#Library

A Rust library for financial mathematics, cash-flow analysis, valuation, and reusable long-term financial tooling.

StatusResearch
Started2026
Stageactive
Progress55%

Why

Many financial tools hide assumptions inside spreadsheets or closed products. I want a library that makes those assumptions explicit, testable, and reusable.

Goal

Create a dependable foundation for financial math, valuation workflows, and transparent modeling tools.

Current Focus

  • Cash-flow primitives
  • Valuation models
  • API design

This project is the financial backbone behind several product ideas I care about.

Instead of building one-off calculators each time, I want a reusable engine for time value of money, amortization, discounting, valuation, and scenario analysis.

Journey

The long-term vision is not just a library. It is an infrastructure layer for better financial software: tools that are easier to inspect, easier to trust, and easier to evolve.

Current direction

Right now the focus is on getting the fundamentals right:

  • clean domain models
  • numerically stable calculations
  • an API that can grow without becoming messy