This essay explores why mathematics, while crucial in specialized fields, is not indispensable for daily activities, highlighting its quantitative nature, alternative expressions in art, personal relevance, and how recognizing its limited everyday role can reveal its true value.
This article introduces five open-source stock trading tools—funds, ZVT, QUANTAXIS, StockAnalysisSystem, and match-trade—detailing their authors, star counts, features, and repository links, offering developers practical resources to build or enhance their own trading applications.
This article explains why and how to quantify user experience using UX KPIs, detailing both quantitative and qualitative metrics such as task success rate, task time, search/navigation usage, error rate, and the System Usability Scale (SUS).
This article introduces the practical “Z Method” for user research, combining qualitative and quantitative techniques—interviews, surveys, usability testing, and data analysis—to guide product planning, prioritization, implementation, and post‑launch optimization through a structured, iterative approach.
