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How can I have grep not print out 'No such file or directory' errors?
... to pass in -R or the path.
git grep pattern
That will show all matches from your current directory down.
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How to define a reply-to address?
How can I define a reply-to address different than the :from one? Is that even possible?
2 Answers
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jQuery first child of “this”
I'm trying to pass "this" from a clicked span to a jQuery function that can then execute jQuery on that clicked element's first child. Can't seem to get it right...
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Are there legitimate uses for JavaScript's “with” statement?
... loop now works as intended, creating three separate variables with values from 0 to 2. Note that variables declared within the block are not scoped to it, unlike the behavior of blocks in C++ (in C, variables must be declared at the start of a block, so in a way it is similar). This behavior is act...
Add swipe to delete UITableViewCell
...wCellEditingStyle.Delete) {
// handle delete (by removing the data from your array and updating the tableview)
}
}
Swift 3.0:
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
return true
}
override func tableView(_ tableView: UITab...
How to create NS_OPTIONS-style bitmask enumerations in Swift?
... 0 }
static var allZeros: MyOptions { return self(0) }
static func fromMask(raw: UInt) -> MyOptions { return self(raw) }
var rawValue: UInt { return self.value }
static var None: MyOptions { return self(0) }
static var FirstOption: MyOptions { return self(1 << 0) }
...
Thread context switch Vs. process context switch
...ching which is shortly mentioned here: youtu.be/3akTtCu_F_k?t=46m8s (watch from the beginning to know more about Virtual Memory, page tables and TLB).
– piotrwest
Jun 24 '16 at 23:05
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Shared-memory objects in multiprocessing
..., where one process holds the memory and a manager arbitrates access to it from other processes (even over a network).
The Manager approach can be used with arbitrary Python objects, but will be slower than the equivalent using shared memory because the objects need to be serialized/deserialized an...
How do I compute derivative using Numpy?
...en Theano might be a good choice.
Here is an example using SymPy
In [1]: from sympy import *
In [2]: import numpy as np
In [3]: x = Symbol('x')
In [4]: y = x**2 + 1
In [5]: yprime = y.diff(x)
In [6]: yprime
Out[6]: 2⋅x
In [7]: f = lambdify(x, yprime, 'numpy')
In [8]: f(np.ones(5))
Out[8]: [ 2. ...
What is “entropy and information gain”?
... splits with low uncertainty/entropy). This process is applied recursively from the root-node down, and stops when a leaf node contains instances all having the same class (no need to split it further).
Note that I skipped over some details which are beyond the scope of this post, including how to ...