dl.acm.org

Android Calculator Making a precise calculator is not trivial. While \(10^{100} + 1 - 10^{100} = 1\), iOS’s calculator gives back \(0\). explores how Android’s calculator gets this right courtesy of . Real number representations are fundamentally imprecise because we can’t squeeze in infinitely many real numbers into a finite number of bits. Floating-point representations have a base \(\beta\) (assumed to be even) and a precision \(p\), e.g., if \(\beta = 10\) and \(p = 3\), then \(0....

Testing Web Components While any test framework can work, it’s better to test web components in a browser environment because that’s where they’ll be used. Node-based frameworks would require too much shimming of DOM calls that’d make the tests unrepresentative. and are good options for browser-based testing. is powered by ES-build, and so is the client-side of the app; let’s go down this path and see where it leads....

Programmable Money South Korea’s COVID-19 stimulus payments were programmed to expire in Aug 2020, and could only be spent at qualifying shops. Australia’s cashless welfare card [currently in pilot stages] cannot be withdrawn as cash, nor used at alcohol, tobacco and gambling joints. Monzo, a UK-based digital-first mobile baking app, supports IFTTT recipes. This enables budgeting logic, “If I spend at KFC, then move $5 to my penalty pot”....

Myths and Fallacies of 'Personally Identifiable Information'. Narayanan, Arvind; Shmatikov, Vitaly. dl.acm.org . Jun 1, 2010. What is PII? From Breach Notification Laws: For example, California Senate Bill 1386: SSNs, driver’s license numbers, financial accounts. The list can never be exhaustive, e.g. email addresses and telephone numbers are not mentioned in Bill 1386. Focuses on data that are commonly used for authenticating an individual. Ignores data that reveals some sensitive information about an individual...