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What are some compelling use cases for dependent method types?
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More or less any use of member (ie. nested) types can give rise to a need for dependent method t...
jQuery Tips and Tricks
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edited Mar 23 '11 at 18:51
community wiki
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Equivalent of “continue” in Ruby
...ts the following:
Value of local variable is 2
Value of local variable is 3
Value of local variable is 4
Value of local variable is 5
=> 0..5
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Xcode: What is a target and scheme in plain language?
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I've added in Workspace and Project too!
Workspace - Contains one or more projects. These pr...
What is the meaning of the term arena in relation to memory?
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An arena is just a large, contiguous piece of memory that you allocate once and then use to mana...
IntelliJ beginning of file keyboard shortcut
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command+home or fn+command+left arrow
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Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad?
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Python (the language) doesn't need a GIL (which is why it can perfectly be implemented on JVM [J...
How to write a switch statement in Ruby
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edited Apr 4 '18 at 9:03
DTavaszi
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answered Jun 4 '09 at 1:22
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Difference between map, applymap and apply methods in Pandas
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Straight from Wes McKinney's Python for Data Analysis book, pg. 132 (I highly recommended this book):
Another frequent operation is applying a function on 1D arrays to each column or row. DataFrame’s apply method does exactly this:
In [116]: frame = DataFrame(np.random.randn(4, 3),...
How do Trigonometric functions work?
...ndard interval. For starters, you could reduce angles to be between 0 and 360 degrees. But by using a few identities, you realize you could get by with less. If you calculate sines and cosines for angles between 0 and 45 degrees, you can bootstrap your way to calculating all trig functions for all...