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Fastest Way to Find Distance Between Two Lat/Long Points
... a million locations in a mysql database all with longitude and latitude information.
15 Answers
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PostgreSQL: insert from another table
...xpression of the FROM clause; they can be constant arithmetic expressions, for instance.
And a string literal is certainly a value expression.
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How to get city name from latitude and longitude coordinates in Google Maps?
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I am getting error which says "Timed out waiting for response from server". I have added Internet permission. Do it need something else?
– Bhaumik Belani
Apr 26 '16 at 17:35
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Using the rJava package on Win7 64 bit with R
...or JAVA_HOME. However note that:
To use rJava in 32-bit R, you need Java for Windows x86
To use rJava in 64-bit R, you need Java for Windows x64
To build or check R packages with multi-arch (the default) you need to install both Java For Windows x64 as well as Java for Windows x86. On Win 64, the...
Can gcc output C code after preprocessing?
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@TorKlingberg Can I do this for multiple files at a time?
– user2808264
Sep 18 '16 at 0:31
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Environment variable to control java.io.tmpdir?
...re gcc writes it's temporary files, but I can't seem to find an equivalent for java's createTempFile API.
7 Answers
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How to find where gem files are installed
...-p247/bin
- SPEC CACHE DIRECTORY: /Users/ttm/.gem/specs
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-12
- GEM PATHS:
- /Users/ttm/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0
- /Users/ttm/.gem/ruby/2.0.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbo...
What is `related_name` used for in Django?
What is the related_name argument useful for on ManyToManyField and ForeignKey fields? For example, given the following code, what is the effect of related_name='maps' ?
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Javascript - Open a given URL in a new tab by clicking a button
... name" onclick="window.open('http://www.website.com/page')" />
Worked for me and it will open an actual new 'popup' window rather than a new full browser or tab. You can also add variables to it to stop it from showing specific browser traits as follows:
onclick="window.open(this.href,'popUpWi...
How can I use an array of function pointers?
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@VonC: great answer. +1 for the links.
– Destructor
Jul 9 '15 at 17:04
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