I designed two special purpose web calculators using HTML and JavaScript, with an emphasis on real world usability. The first application was a loan repayment calculator that accurately computes monthly payments while validating user input and handling errors without relying on browser alerts. For the second application, I independently created a light-pollution and night-sky visibility calculator that estimates local Bortle class and illustrates how outdoor lighting contributes to skyglow and energy waste. This project strengthened my skills in JavaScript logic, form validation, UI design, AI-assisted development, reinforcing the importance of building tools that translate technical work into meaningful, real world insight.
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