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< tt >/ dev / null </ tt > is a special file, not a directory, so one cannot move a whole directory into it with the Unix < tt > mv </ tt > command.
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< and tt
## < tt > AddRoundKey </ tt >— each byte of the state is combined with the round key using bitwise xor
## < tt > SubBytes </ tt >— a non-linear substitution step where each byte is replaced with another according to a lookup table.
## < tt > ShiftRows </ tt >— a transposition step where each row of the state is shifted cyclically a certain number of steps.
## < tt > MixColumns </ tt >— a mixing operation which operates on the columns of the state, combining the four bytes in each column.
In the < tt > SubBytes </ tt > step, each byte in the state is replaced with its entry in a fixed 8-bit lookup table, S ; b < sub > ij </ sub > = S ( a < sub > ij </ sub >).
In the < tt > SubBytes </ tt > step, each byte in the state matrix is replaced with a < tt > SubByte </ tt > using an 8-bit substitution box, the Rijndael S-box.
< and >/
An equivalent definition is the radius of an unperturbed circular Newtonian orbit about the Sun of a particle having infinitesimal mass, moving with an angular frequency of radians per day ; or that length such that, when used to describe the positions of the objects in the Solar System, the heliocentric gravitational constant ( the product GM < sub >☉</ sub >) is equal to ()< sup > 2 </ sup > AU < sup > 3 </ sup >/ d < sup > 2 </ sup >.
Absolute temperature measurement is uniquely determined by a multiplicative constant which specifies the size of the " degree ", so the ratios of two absolute temperatures, T < sub > 2 </ sub >/ T < sub > 1 </ sub >, are the same in all scales.
The slope field of F ( x ) = ( x < sup > 3 </ sup >/ 3 )-( x < sup > 2 </ sup >/ 2 )- x + c, showing three of the infinitely many solutions that can be produced by varying the Constant of integration | arbitrary constant C.
As the derivative of a constant is zero, x < sup > 2 </ sup > will have an infinite number of antiderivatives ; such as ( x < sup > 3 </ sup >/ 3 ) + 0, ( x < sup > 3 </ sup >/ 3 ) + 7, ( x < sup > 3 </ sup >/ 3 ) − 42, ( x < sup > 3 </ sup >/ 3 ) + 293 etc.
< and dev
In Unix-like operating systems, many files have no direct association with a physical storage device: < tt >/ dev / null </ tt > is a prime example, as are just about all files under < tt >/ dev </ tt >, < tt >/ proc </ tt > and < tt >/ sys </ tt >.
Unix and Unix-like operating systems use the prefix < tt > tty </ tt >, for example < tt >/ dev / tty13 </ tt >, or < tt > pty </ tt > ( for pseudo-tty ), such as < tt >/ dev / ptya0 </ tt >.
The posting seems to be a motivating factor in restricting access to < tt >/ dev / kmem </ tt > on Unix systems.
In modern-day BSD Unix and its descendants, < tt >/ dev / drum </ tt > is the name of the default virtual memory ( swap ) device, deriving from the use of drum secondary-storage devices as backing store for pages in virtual memory.
In Unix-like operating systems, < tt >/ dev / null </ tt > or the null device is a special file that discards all data written to it ( but reports that the write operation succeeded ) and provides no data to any process that reads from it ( yielding EOF immediately ).
Devnull is the name of a computer worm for the Linux operating system that has been named after < tt >/ dev / null </ tt >, Unix's null device.
< tt >/ dev / zero </ tt > is a special file in Unix-like operating systems that provides as many null characters ( ASCII NUL, 0x00 ) as are read from it.
< and /
This relatively close packing leads to a high density of 6. 697 g / cm < sup > 3 </ sup >, but the weak bonding between the layers leads to the low hardness and brittleness of antimony.
They are considered a fault in most styles of beer .< ref > Beer Style Guidelines, < http :// www. bjcp. org / 2008styles / catdex. php ></ ref >
As the speed of light in meters per second ( c < sub > 0 </ sub >) is fixed in the International System of Units, this measurement of the speed of light in AU / d ( c < sub > AU </ sub >) also determines the value of the astronomical unit in meters ( A ):
If ΔS and / or T are small, the condition ΔG < 0 may imply that ΔH < 0, which would indicate an exothermic reaction.
Ahmed III ( Ottoman Turkish: احمد ثالث Aḥmed-i < u > s </ u > āli < u > s </ u >) < span dir =" ltr ">( December 30 / 31, 1673 – July 1, 1736 )</ span > was Sultan of the Ottoman Empire and a son of Sultan Mehmed IV ( 1648 – 87 ).
Ahmad Shah Durrani ( c. 1722 – 1773 ) ( Pashto /), also known as Ahmad Shāh Abdālī ( Pashto / Persian: احمد شاه ابدالي ) and born as Ahmad < u > Kh </ u > ān, was the founder of the Durrani Empire ( Afghan Empire ) in 1747 and is regarded by many to be the founder of the modern state of Afghanistan .</ poem >
< and null
When talking about null sets in Euclidean n-space R < sup > n </ sup >, it is usually understood that the measure being used is Lebesgue measure.
The following C language fragment is syntactically correct, but performs operations that are not semantically defined ( the operation < tt >* p >> 4 </ tt > has no meaning for a value having a complex type and < tt > p -> im </ tt > is not defined because the value of < tt > p </ tt > is the null pointer ):
The null space of A is precisely the set of solutions to these equations ( in this case, a line through the origin in R < sup > 3 </ sup >).
:# For each free variable x < sub > i </ sub >, choose the vector in the null space for which x < sub > i </ sub > = 1 and the remaining free variables are zero.
The left null space of a matrix A consists of all vectors x such that x < sup > T </ sup > A = 0 < sup > T </ sup >, where T denotes the transpose of a column vector.
* RhAG-gas transporter, probably of carbon dioxide, defines Rh Blood Group and the associated unusual blood group phenotype Rh < sub > null </ sub >;
** RhD / RhCE-defines Rh Blood Group and the associated unusual blood group phenotype Rh < sub > null </ sub >;
The left null space of A is the set of all vectors x such that x < sup > T </ sup > A = 0 < sup > T </ sup >.
where a < sub > 0 </ sub > is a point on the hyperplane and a < sub > i </ sub > for i = 1, ..., n are non-parallel vectors lying on the hyperplane, a normal to the hyperplane is any vector in the null space of A where A is given by
0.187 seconds.