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Seeding the random number generator in Javascript
...nitial states.
var seed = 1337 ^ 0xDEADBEEF; // 32-bit seed with optional XOR value
// Pad seed with Phi, Pi and E.
// https://en.wikipedia.org/wiki/Nothing-up-my-sleeve_number
var rand = sfc32(0x9E3779B9, 0x243F6A88, 0xB7E15162, seed);
for (var i = 0; i < 15; i++) rand();
The output of these ...
What are “first class” objects?
..., '__rpow__', '__rrshift__', '__rshift__', '__rsub__', '__rtruediv__', '__rxor__', '__setattr__', '__str__', '__sub__', '__truediv__', '__xor__']
Because everything's a first-class object in Python, there are relatively few obscure special cases.
In Java, for example, there are primitive types ...
How do BitTorrent magnet links work?
...a more complicated protocol used by Azureus.
3 The distance is measured by XOR.
Further Reading
BEP-3: The BitTorrent Protocol Specification
BEP-52: The BitTorrent Protocol Specification v2
BEP-5: DHT Protocol
BEP-9: Extension for Peers to Send Metadata Files
BEP-10: Extension Protocol
BEP-11: Pe...
What is the function of the push / pop instructions used on registers in x86 assembly?
...nstant into stack memory and the stack pointer will be automatic decreased xor increased according number of words pushed or poped into (from) stack.
Via assembler instructions we can store to stack:
CPU registers and also constants.
Return addresses for functions or
procedures
Functions/procedu...
Peak detection in a 2D array
...ning only peaks,
#by removing the background from the local_max mask (xor operation)
detected_peaks = local_max ^ eroded_background
return detected_peaks
#applying the detection and plotting results
for i, paw in enumerate(paws):
detected_peaks = detect_peaks(paw)
pp.subplot(...
Evaluating a mathematical expression in a string
...st.Mult: op.mul,
ast.Div: op.truediv, ast.Pow: op.pow, ast.BitXor: op.xor,
ast.USub: op.neg}
def eval_expr(expr):
"""
>>> eval_expr('2^6')
4
>>> eval_expr('2**6')
64
>>> eval_expr('1 + 2*3**(4^5) / (6 + -7)')
-5.0
...
Fastest sort of fixed length 6 int array
...
@tgwh: XOR swap is almost always a bad idea.
– Paul R
Jun 25 '13 at 15:20
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Is recursion ever faster than looping?
...ther position: e.g.: store m[4] m[8]
b) Logic and arithmetic
and, or, xor, not
add, sub, mul, div. e.g. add m[7] m[8]
An Executing Agent: a core in a modern CPU. An "agent" is something that can execute instructions. An Agent can also be a person following the algorithm on paper.
Order of step...
STL or Qt containers?
...ture, if need be.
The same is true of doubly linked lists, which could use XOr linking to drastically reduce space used. Again, this is impossible with Qt, due to it's requirements for growth and COW.
COW can indeed make something lighter, but so can Intrusive Containers, such as supported by boost,...
How do I make a list of data frames?
...ic indices to access your data frames (and you can use both, this isn't an XOR choice).
Overall, using lists will lead you to write cleaner, easier-to-read code, which will result in fewer bugs and less confusion.
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