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What's the algorithm to calculate aspect ratio?
...integer solution like 16:9 rather than a float:1 solution like 1.77778:1.
If so, what you need to do is find the greatest common divisor (GCD) and divide both values by that. The GCD is the highest number that evenly divides both numbers. So the GCD for 6 and 10 is 2, the GCD for 44 and 99 is 11.
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Reverse a string in Python
... It works by doing [begin:end:step] - by leaving begin and end off and specifying a step of -1, it reverses a string.
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Flask-SQLAlchemy how to delete all rows in a single table
... a similar kind of a situation. Say there are 4 records in the table as of now, from id 1 to 4. When I do a db.session.query(Table_name).delete() db.session.commit() and then if I do a db.session.add() again to add new records, the next record gets an id of 5. Since my table is now empty, I want my ...
Vim clear last search highlighting
... in Vim, I get all the occurrences highlighted. How can I disable that? I now do another search for something gibberish that can't be found.
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CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa
... Of course it will, but that would fall under "doing it wrong". I have now edited my answer and explain just when a => would be needed on the static/instance methods of a class.
– Alex Wayne
Jan 23 '12 at 0:25
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What exactly is a reentrant function?
...the code holding the const reference being told.
7.4. Make sure the user knows your object is not thread-safe
Thus, the user is responsible to use mutexes to use an object shared between threads.
The objects from the STL are designed to be not thread-safe (because of performance issues), and thus...
Stop all active ajax requests in jQuery
...uld use an array keeping track of all pending ajax requests and abort them if necessary.
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How to solve javax.net.ssl.SSLHandshakeException Error?
...should be able to tell you exactly what to do for your specific browser.)
Now that you have the certificate saved in a file, you need to add it to your JVM's trust store. At $JAVA_HOME/jre/lib/security/ for JREs or $JAVA_HOME/lib/security for JDKs, there's a file named cacerts, which comes with Jav...
Summarizing multiple columns with dplyr? [duplicate]
...x. I have a data frame with different variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R.
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Min/Max-value validators in asp.net mvc
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Great answer. I would modify the error message a bit: "Enter a value greater than or equal to " is a more (grammatically-speaking) correct error message.
– Tieson T.
Jul 26 '12 at 0:04
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