A calculator 만나이 계산기 is an electronic device used for basic arithmetic and complex mathematics. This device is small and portable and has several features that can help you perform various tasks. Its main features are a power source, a display panel, and modes of operation.
A date calculator 날짜계산기 is an application that lets you enter dates and times in various formats. You can also choose a month or day name to make the result more readable. The calculator displays the date based on what options you’ve selected.