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What is the ideal data type to use when storing latitude / longitude in a MySQL database?
... Bytes Resolution
Deg*100 (SMALLINT) 4 1570 m 1.0 mi Cities
DECIMAL(4,2)/(5,2) 5 1570 m 1.0 mi Cities
SMALLINT scaled 4 682 m 0.4 mi Cities
Deg*10000 (MEDIUMINT) 6 16 m 52 ft Houses/Businesses
DECIMAL(6,4)/(7,4) 7 16...
Static classes and methods in coffeescript
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@AlvaroLourenço Seems that a CoffeeScript class is a "static block" (with some extra stuff): jsfiddle.net/ambiguous/ap72ckax
– mu is too short
Oct 12 '17 at 17:59
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How do I calculate square root in Python?
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0
If one of the numbers is a float, it works as expected:
>>> 1.0/2
0.5
>>> 16**(1.0/2)
4.0
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How to check if a String is numeric in Java
...lly efficient than doing a regex matching.
UPDATE: As pointed by Jean-François Corbett in the comment, the above code would only validate positive integers, which covers the majority of my use case. Below is the updated code that correctly validates decimal numbers according to the default locale ...
Multi-gradient shapes
...s what I've got for now:
green_horizontal_gradient.xml
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<corners
android:radius="3dp"
/>
<gradient
an...
With Spring can I make an optional path variable?
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Currently using this method for a spring 3.1 project, and the docs say that it works for 2.5+, so it definitely works for Spring 3. EDIT: source.
– Evan B.
Mar 22 '13 at 16:21
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How to assign a heredoc value to a variable in Bash?
...ed Nov 16 '19 at 22:47
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Aug 8 '13 at 12:58
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Android on-screen keyboard auto popping up
...ftInputMode="stateHidden"
>
This works for Android 3.0, 3.1, 3.2, 4.0 - Editor Used to Compile (Eclipse 3.7)
Place the 'windowSoftInputMode="stateHidden"' in your application's manifest XML file for EACH activity that you wish for the software keyboard to remain hidden in. This m...
Hash collision in git
What would actually happen if I had a hash collision while using git?
9 Answers
9
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Function to calculate distance between two coordinates
...* f - f * f ' "Eccentricity"
Dim beta As Double = (a / Math.Sqrt(1.0 - e * Math.Sin(lat1) * Math.Sin(lat1)))
Dim cos As Double = Math.Cos(lat1)
Dim x As Double = beta * cos * Math.Cos(long1)
Dim y As Double = beta * cos * Math.Sin(long1)
Dim z As Double = beta * (1 - e) * M...