【How many problems of TrigonometricRatio can you solve?】
This is an Apps for TrigonometricRatio.
This Apps was made for middle or high school students who need to practice calculations of TrigonometricRatio, people in general who like calculations, and middle-aged men who want to stay sharp.
A cute dog will appear every time you solve ten problems.
Explanation Page
https://todapps.wordpress.com/%e3%81%b2%e3%81%9f%e3%81%99%e3%82%89%e4%b8%89%e8%a7%92%e6%af%94-%e6%93%8d%e4%bd%9c%e8%aa%ac%e6%98%8e/
Explanation Video
https://youtu.be/MqwpfekZPu4
（Only Japanese）