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Calculating distance between two points, using latitude longitude?
...e lon1,
double lon2, double el1, double el2) {
final int R = 6371; // Radius of the earth
double latDistance = Math.toRadians(lat2 - lat1);
double lonDistance = Math.toRadians(lon2 - lon1);
double a = Math.sin(latDistance / 2) * Math.sin(latDistance / 2)
+ Math....
Better way of incrementing build number?
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edited Aug 15 '18 at 12:13
answered Feb 15 '12 at 14:12
Mo...
PostgreSQL: How to pass parameters from command line?
...You can use the -v construct e.g
psql -v v1=12 -v v2="'Hello World'" -v v3="'2010-11-12'"
and then refer to the variables in sql as :v1, :v2 etc
select * from table_1 where id = :v1;
Please pay attention on how we pass string/date value using two quotes " '...' "
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VR硬件行业洗牌进行时 70%创业公司倒闭转行做内容 - 资讯 - 清泛网 - 专注C...
...方面，国内VR硬件品牌的格局已经初步形成，暴风魔镜、3Glasses、大朋、蚁视已经划分市场；另一方面，乐视、华为、中兴、一加等手机企业也开始加速向VR市场迈进，由于手机厂商自带生产线，入行的成本更加低廉，所以手机厂...
Two way/reverse map [duplicate]
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edited Jul 10 '14 at 3:09
answered Nov 7 '12 at 18:53
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How do I get a file's directory using the File object?
...r below addresses this
– 4myle
Jun 13 '17 at 19:27
add a comment
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Removing an activity from the history stack
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edited Mar 16 '19 at 16:38
Riot Goes Woof
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answ...
Count how many files in directory PHP
...voted this.
– Bradly Spicer
Nov 4 '13 at 16:11
2
This should be the accepted answer, unless the a...
What are the benefits to marking a field as `readonly` in C#?
... Yuri Ghensev
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answered Nov 10 '08 at 3:48
Bill the LizardBill the Lizard
3...
How do I change read/write mode for a file using Emacs?
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tripleee
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answered Oct 8 '08 at 0:10
Bob CrossBob Cross
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