# 1. Install the three foundational packages
$ npm install @finengine/core @finengine/math @finengine/ui

# 2. Run a deterministic 36-month amortization
$ node -e "import('@finengine/math').then(m => console.log(m.amortize({principal:500000,annualRate:13.5,months:36})))"

→ Monthly EMI: BDT 16,968 · Total Payable: BDT 6,10,835 · Total Interest: BDT 1,10,835
// 100% client-side. No backend. Deterministic IEEE-754 rounding.

import { amortize } from '@finengine/math';
import { formatMoney } from '@finengine/core';

const plan = amortize({
  principal: 500000,
  annualRate: 13.5,
  months: 36,
});

console.log(formatMoney(plan.monthlyPayment, 'BDT'));
// → "BDT 16,968.00" — identical across browsers, locales, timezones.

<!-- Vanilla JS — no bundler, no toolchain -->
<script type="module"
  src="https://cdn.jsdelivr.net/gh/gmrafi/FinEngine@main/packages/math/dist/index.js"></script>

<script type="module">
  import { amortize } from '@finengine/math';
  const r = amortize({ principal: 500000, annualRate: 13.5, months: 36 });
</script>