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Fastest Way to Find Distance Between Two Lat/Long Points
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edited Oct 2 '17 at 15:05
Peter K.
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'float' vs. 'double' precision
...ary representation, not a decimal one.
Single precision (float) gives you 23 bits of significand, 8 bits of exponent, and 1 sign bit.
Double precision (double) gives you 52 bits of significand, 11 bits of exponent, and 1 sign bit.
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How to include another XHTML in XHTML using JSF 2.0 Facelets?
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2 Answers
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比尔盖茨“未来生活预言”的科技豪宅（图） - 资讯 - 清泛网 - 专注C/C++及内核技术
...，他家就指引着数字生活的航向。
豪宅名叫“世外桃源2.0”，位于美国西雅图的华盛顿湖畔，从市区开车只需25分钟。“世外桃源2.0”这个名字来源于《CitizenKane》里 CharlesFosterKane虚构的房屋。
盖茨把岸边小山挖去一半，前临...
How to print a percentage value in python?
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289
format supports a percentage floating point precision type:
>>> print "{0:.0%}".form...
How to concatenate multiple lines of output to one line?
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246
Use tr '\n' ' ' to translate all newline characters to spaces:
$ grep pattern file | tr '\n' ...
Check if a string is null or empty in XSLT
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323
test="categoryName != ''"
Edit: This covers the most likely interpretation, in my opinion, of...
“Too many values to unpack” Exception
...the number of target variables. For example: this work, and prints 1, then 2, then 3
def returnATupleWithThreeValues():
return (1,2,3)
a,b,c = returnATupleWithThreeValues()
print a
print b
print c
But this raises your error
def returnATupleWithThreeValues():
return (1,2,3)
a,b = returnAT...
What does @hide mean in the Android source code?
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182
Android has two types of APIs that are not accessible via SDK.
The first one is located in pack...
Importing a CSV file into a sqlite3 database table using Python
...your_filename.db'
cur = con.cursor()
cur.execute("CREATE TABLE t (col1, col2);") # use your column names here
with open('data.csv','r') as fin: # `with` statement available in 2.5+
# csv.DictReader uses first line in file for column headings by default
dr = csv.DictReader(fin) # comma is de...