Search accepts the name of a law, a formula, a quantity or a symbol. The chips above the list filter by topic, by your starred articles, or show only articles that have a calculator.
Open an article and choose the value you want to find. Enter the values you know in the units shown next to each field — all quantities are in SI units, and angles are entered in degrees. The app solves the formula shown in the article for the value you chose; the reasoning for a full solution is in the worked example below it.
Star an article to add it to your favourites, then open the cheat sheet from the toolbar and filter it by favourites or by topic. It lists formulas without the explanations, for quick revision.
Open the overflow menu, then About. The language menu is above the licences. English, Spanish, Arabic, French, Hindi, Thai and Russian are available offline, including the notation used for subscripts.
The overflow menu holds the table of physical constants, the SI units with their prefixes, and a short problem-solving guide.
Email ultim8digital@gmail.com with the app version (shown in About), your device and operating-system version, and what you did before the problem appeared. For a physics or translation correction, name the article and the exact line, and add a reliable reference if you have one. Please do not include passwords or other sensitive information.
The reference follows standard school and introductory university treatments. Each article states the conditions under which its formula holds; outside them it gives a wrong answer. Translations are written by hand rather than machine-translated and are still being refined.
Publisher: Oleg Korunov