longbin Apps

A calculator that take notes.The most humanized design, heartfelt multi-touch let calculationmore convenient.For housewife, it is easy to see calculation process，no needchecking.For businessperson, words remark and record saving keeps data fromlost.For students, expression calculation helps you verifying themathematical problems.For parents and teachers, no need to worry about kid's homework,one key will done.For researchers, self-define function and conversion tools willmake you more efficient.Special features include:- One point and multi-fingers touch- Complicated expressions calculation- Words input to keeping accounts- Continuous calculation- Cursor anywhere to calculate- Real voice result-sounding- Homework checking- Abundant of constants and functions- Self define function- Hex conversion, unit conversion and currency conversion