Abstract: The problem of determining the relative orientation of a personal sensor device and a land vehicle is fundamental to all analyses that aim to use inertial measurements from that same device.
What do a 20th-century physicist, an 18th-century statistician and an ancient Greek philosopher have in common? They all knew how to extrapolate with incredible accuracy. Columnist Jacob Aron explains ...
Many DIY tax software programs offer free tax filing for basic tax situations. But if your income is complex, most will prompt you to upgrade to a paid version.
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