Questions, bug reports, or feedback on the calculator or the fixed-income guides — all welcome.
The fastest way to reach us. We read every message, though as a small independent project replies may take a few days.
A few details make it much faster for us to help:
The bond inputs you used (face value, coupon, dates, mode) and what result looked wrong. Screenshots help a lot.
What you're trying to calculate that the tool doesn't currently support — a specific bond type or metric is more useful than "more features".
Spotted an error in the Learn guides? Tell us the page and the specific figure or claim — these get fixed fast.
Partnerships, press, or general feedback — send it through, we read all of it.