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How to compute the sum and average of elements in an array?
I am having problems adding all the elements of an array as well as averaging them out. How would I do this and implement it with the code I currently have? The elements are supposed to be defined as I have it below.
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Maven Install on Mac OS X
...n you just install Maven using:
brew install maven
PS: If you got a 404 error, try doing a brew update just before
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How does one remove an image in Docker?
...8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error:
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How to define an alias in fish shell?
... Thanks Jerub. For some reason after funcsave it gave me an error: troff: fatal error: can't open `/usr/share/fish/man/save_function.1': No such file or directory
– armandino
May 4 '10 at 5:41
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How do I check if a list is empty?
...eq = numpy.array([1,2,3]) followed by if not seq raises an exception "ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()"
– Mr.WorshipMe
Mar 20 '19 at 18:03
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How do I iterate over an NSArray?
...ss the objects by index, you can run into strange exceptions or off-by-one errors (often long after the problem has occurred) that can be horrific to debug. Enumeration using one of the standard idioms has a "fail-fast" behavior, so the problem (caused by incorrect code) will manifest itself immedia...
Do I have to guard against SQL injection if I used a dropdown?
...ready to accept anything no matter where it comes from. Everything else is error-prone.
– glglgl
Mar 21 '14 at 8:46
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How to verify if a file exists in a batch file?
...hat the /c /d /h /e /i /y means:
/C Continues copying even if errors occur.
/D:m-d-y Copies files changed on or after the specified date.
If no date is given, copies only those files whose
source time is newer than the destination time.
/H ...
Run PostgreSQL queries from the command line
..., if you re-enter the same query you will have most likely create a syntax error.
As an experiment, try typing any garble you want at the psql prompt then hit enter. psql will silently provide you with a new line. If you enter a semicolon on that new line and then hit enter, then you will receive t...
What is Common Gateway Interface (CGI)?
...s the webserver how to pass data to and from an application. More specifically, it describes how request information is passed in environment variables (such as request type, remote IP address), how the request body is passed in via standard input, and how the response is passed out via standard ou...