Our purpose is to explain concepts and make assumptions visible. Clarity includes saying what we know, what we calculate and what has not been reviewed.
Direction and preparation
The project is directed by Yenny Astrid Londoño. Initial materials were prepared with AI assistance. Project direction is not presented as a financial credential, and we do not claim an external professional review that has not taken place.
Sources and examples
We prioritize primary sources: regulators, central banks and public financial education bodies. Guides identify their conceptual references. Numerical examples are original and hypothetical, not offers or current data unless explicitly dated and labeled. A linked source does not imply endorsement.
Reproducible calculations
Tools explain rates, terms, contribution timing and exclusions. The equivalent monthly rate is (1 + EAR/100)^(1/12) − 1. We test zero-rate cases, contributions and negative balances. Software tests are not financial advice.
Updates and corrections
Editorial dates indicate preparation or updates, not continuous market verification. To report an error, send the URL, passage and a source that can be checked. We will review the case and correct verified errors.
anchetasmedellin2017@gmail.comWhat we do not present as fact
We do not offer guaranteed returns, personalized recommendations or undocumented personal experiences. Commercial content and conflicts must be identified if introduced. This version has no active advertising.