Bucephalas Tabula rasa

+ Limitation of Tabula rasa
This app is a trial version of Bucephalas (full version). Its episodic memory is initialized on startup, but you can still use most of the features of the full version.

+ Features as a Cycle Computer App
　Bucephalas (Tabula rasa) is designed with the assumption that a user's primary means of transortation is a bicycle. Therefore, this app has the basic features of a cycle computer app.
• A quasi-real-time slope meter using a barometer.
• Automatic recording of local minima of slopes.
• Elevation gain, maximum elevation gain, cumulative elevation gain by using a GPS altimeter or a barometer.
• Estimate heading twithout using the magnetic compass whenever possible.
• Voice navigation to a destination.
• Indicates the direction of a destination by using 3D sounds (stereo sounds).
• Adaptive control of GPS activity based on the battery level (full-blast mode, high-accuracy mode, power-saving mode, starvation mode, and nirvana mode).
• Effective speed; an original speed statistic based on a medial speed instead of average speed.
• Location bookmark.
• Real-time speedometer.
• Maximum speed indicator.
• Distance traveled since the start of the app.
• Odometer.
• Altimeter and barometer.
• Automatic recording track recording.

+ Purpose of Unknotting
Imagine that someone has drawn a large number of latitudinal and longitudinal lines on the earth. These lines are separated by 1/60 degrees, or 1 minute. The intersections of these lines are called KNOTs.
Your mission is to unknot as many knots as possible.

+ How do you unknot a Knot?
You can unknot a knot by simply approaching within a radius of 50 m of a knot.

+ Gordian Knots
Most knots have fractions in their coordinates. For example, the latitude and longitude of the knot close to Apple Inc. are (+37.33333, -122.03333). However, the coordinates of some knots do not have fractions. Such knots are called Gordian Knots. The Gordian Knot closest to Apple Inc. lies at (+37.00000, -122.00000). Gordian Knots are unknotted in the same manner as ordinary knots.

+ Play Carefully
How many knots can you unknot? However, it should be noted that approaching some knots could be dangerous. So, play this game carefully at your own risk.

+ IMPORTANT
This App uses GPS in the background. Continued use of GPS running in the background can dramatically decrease batt