Xylophone Plus 與 Calculation of Pi 使用情況與統計

Xylophone Plus application for all ages beginners. It comes with 5 music notes which all can play along and learn. It helps build up the music foundation and available for iPod Touch, iPhone, and iPad. Features: • Basic 8 nodes easy to learn. • High quality sounds. • Beautiful graphic. • Highly detailed animation with note vibrate animation. • White bar note indicator for easy follow up. • New and Noteworthy featured app. • Playable for everybody and fun for all ages. • Able to record and playback. • Able to save compose music. • The music note can be share with other. 3 popular, easy kids learning songs. - Do a Deer - Happy Birthday - Row Row Row Your Boat Note: • Compose music data is saved to internal storage and available for external reach [access files via iTunes or Files App]. • You can share/receive compose music data to/from other device via Airdrop. • After editing/compose, save the compose music data with original name will replace the original file. Save it into new name will create a new compose music data. Enjoy Xylophone with your family/kids and have fun. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

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Calculation of Pi

Using the area of the square and the area of the inscribed circle, the method of finding π in the Monte Carlo simulation, the method of using the Length of side of regular polygon inscribed and circumscribed in the circle, the method of Buffon's needle (also Monte Carlo simulation), each is displayed by this application. The data to be displayed is calculated sequentially by the CPU, and in the method using the regular polygon, we calculate it by using the Pythagorean theorem repeatedly. Each calculation method is on the internet. It is interesting that the numerical value converges to π. If you use it when teaching π in school, it will enhance students' interests of interest.