Interactive simple calculator as a primary task. As of now it handles arithmetic, linear and quadratic calculations Adding solutions is unhelpful as other basic inquiries are inspired. // And ELU welcomes responses to much less fundamental questions presented They may be accompanied by supporting references. Edwin Ashworth Stack Exchange network https://latestinternationalnewsenglishtoday.blogspot.com/2025/06/stay-ahead-of-curve-with-best-english.html