電卓＆期間計算

Description

【Function of calculator】
It is a calculator that can calculate the four percentage calculations (addition, subtraction, multiplication, division) and% percentage.
Vibrates on key input.
It is also displayed in units of ten thousand billion trillion.
Today's date and day display.
Battery charge indicator.
【Function of period calculation】
Enter the start date (From) and end date (To) to calculate the number of days between the two dates.
The results are displayed in days and years and months and days.
Date converts the year and Japanese calendar mutually, and also displays "day of the week" and "zodiac"
The input corresponds to the year, Meiji, Taisho, Showa, Heisei, or De sum.