大约有 46,000 项符合查询结果（耗时：0.0221秒） [XML]
How is a CRC32 checksum calculated?
...RC calculation
Or in hex and binary:
0x 01 04 C1 1D B7
1 0000 0100 1100 0001 0001 1101 1011 0111
The highest term (x32) is usually not explicitly written, so it can instead be represented in hex just as
0x 04 C1 1D B7
Feel free to count the 1s and 0s, but you'll find they match up wi...
What does the ^ operator do in Java?
...ake 5^6 as example:
(decimal) (binary)
5 = 101
6 = 110
------------------ xor
3 = 011
This the truth table for bitwise (JLS 15.22.1) and logical (JLS 15.22.2) xor:
^ | 0 1 ^ | F T
--+----- --+-----
0 | 0 1 F | F T
1 | 1 0 T | T F
More simply,...
Wolfram's Rule 34 in XKCD [closed]
... next iteration.
A CA's rules are described as a bitstring. Say it's rule 110 (my favorite). In binary, 110 is 01101110. The digit of least significance is zero. This means that if the cell and its neighbors match rule 0 above, it turns white/negative/0/false/whatever. The second least significant ...
What does the caret operator (^) in Python do?
...y numbers by typing 0bX where X is your binary. 0b0001, 0b0010, etc. So, 0b1101 ^ 0b1110 would give you 0b0011 (or 3).
– Jeff
Jul 28 '15 at 23:58
...
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...rations to perform.
https://msdn.microsoft.com/en-us/library/h83s4e12(v=vs.110).aspx
The salt and the hash are then mashed together(salt first followed
by the hash) and encoded as a string (so the salt is encoded in the
hash). This encoded hash (which contains the salt and hash) is then
stored (typ...
Code Golf - π day
...
Perl, 95 96 99 106 109 110 119 characters:
$t+=$;=1|2*sqrt($r**2-($u-2*$_)**2),say$"x($r-$;/2).'*'x$;for 0..
($u=($r=<>)-1|1);say$t*2/$r**2
(The newline can be removed and is only there to avoid a scrollbar)
Yay! Circle version!
$t+=$;=
...
How to encrypt String in Java
...
110
I'd recommend to use some standard symmetric cypher that is widely available like DES, 3DES or...
How do you get the logical xor of two variables in Python?
How do you get the logical xor of two variables in Python?
24 Answers
24
...
Logical XOR operator in C++?
...
For a true logical XOR operation, this will work:
if(!A != !B) {
// code here
}
Note the ! are there to convert the values to booleans and negate them, so that two unequal positive integers (each a true) would evaluate to false.
...
Bitwise operation and usage
...lower 4 bits of an integer, you AND it with 15 (binary 1111) so:
201: 1100 1001
AND 15: 0000 1111
------------------
IS 9 0000 1001
The zero bits in 15 in that case effectively act as a filter, forcing the bits in the result to be zero as well.
In addition, >> and << are oft...