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Android accelerometer accuracy (Inertial navigation)

...Xr, Yr, and Zr. Without the rotation data, you don't have enough data to establish a vector unless you assume the device never changes it's attitude, which would be pretty limiting. No one reads the TOS anyway. Oh, and you know that INS drifts with the rotation of the earth, right? So there's that ...
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Practical usage of setjmp and longjmp in C

...r to free the memory. Also, this does not have so many blasted exceptions tables that all C++ compilers still generate 20 years after the fact. – artless noise Mar 10 '13 at 2:51 ...
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How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c

... Exactly the question I was trying to solve, thank you! The probability table linked in @Messa's answer is also helpful. – Kyle Chadha Jun 16 '17 at 15:36 ...
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Difference between sh and bash

.../sh could be a symbolic link or a hard link. If it's a symbolic link, a portable way to resolve it is: % file -h /bin/sh /bin/sh: symbolic link to bash If it's a hard link, try % find -L /bin -samefile /bin/sh /bin/sh /bin/bash In fact, the -L flag covers both symlinks and hardlinks, but the d...
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How to implement has_many :through relationships with Mongoid and mongodb?

...ongs_to_many :physicians end In other words you would eliminate the join table and it would have a similar effect to has_many :through in terms of access to the 'other side'. But in your case thats probably not appropriate because your join table is an Appointment class which carries some extra in...
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How do you track record relations in NoSQL?

...and indexes in NoSQL KVP or Document databases. Since there are no pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal web pages. ...
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When to use EntityManager.find() vs EntityManager.getReference() with JPA

...tabase entity and then pass the returned object to be persisted in another table. 5 Answers ...
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From inside of a Docker container, how do I connect to the localhost of the machine?

...Here my container has the IP address 172.17.1.192. Now look at the routing table: root@e77f6a1b3740:/# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 172.17.42.1 0.0.0.0 UG 0 0 0 eth0 172.17.0.0 ...
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Build an ASCII chart of the most commonly used words in a given text [closed]

... C:\WINDOWS\system32\A */ /*Recursive common table expression to generate a table of numbers from 1 to string length (and associated characters)*/ WITH N AS (SELECT 1 i, LEFT(@,1)L UNION ALL SELECT i+1, SUBSTRING(@,i+1,1) F...
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What's the best way to get the last element of an array without deleting it?

...ning: count(): Parameter must be an array or an object that implements Countable in Command line code on line 1 W8 = Warning: array_key_last() expects parameter 1 to be array, null given in Command line code on line 1 N1 = Notice: Undefined offset: 0 in Command line code on line 1 N2 = Notice: Only ...