## < 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.

## < tt > AddRoundKey </ tt >

# Final Round ( no < tt > MixColumns </ tt >)

## < tt > SubBytes </ tt >

## < tt > ShiftRows </ tt >

## < tt > AddRoundKey </ tt >

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.

The International Time Bureau ( BIH ) began a time scale, T < sub > m </ sub > or AM, in July 1955, using both local caesium clocks and comparisons to distant clocks using the phase of VLF radio signals.

Algeria has always been a source of inspiration for different painters who tried to immortalize the prodigious diversity of the sites it offers and the profusion of the facets that passes its population, which offers for Orientalists between the 19 < sup > th </ sup > century and the 20 < sup > th </ sup > century, a striking inspiration for a very rich artistic creation like Eugène Delacroix with his famous painting women of Algiers in their apartment or Etienne Dinet or other painters of world fame like Pablo Picasso with his painting women of Algiers, or painters issued from the Algiers school.

< center ></ center >

< center >

All 128 ASCII characters, including non-printable characters ( represented by their abbreviations ). The 95 ASCII graphic characters are numbered from 20 < sub > hexadecimal | hex </ sub > to 7E < sub > hexadecimal | hex </ sub > ( decimal 32 to 126 ).

The " space " character had to come before graphics to make sorting easier, so it became position 20 < sub > hex </ sub >; for the same reason, many special signs commonly used as separators were placed before digits.

To keep options available for lower case letters and other graphics, the special and numeric codes were arranged before the letters, and the letter " A " was placed in position 41 < sub > hex </ sub > to match the draft of the corresponding British standard.

The @ symbol was not used in continental Europe and the committee expected it would be replaced by an accented À in the French variation, so the @ was placed in position 40 < sub > hex </ sub > next to the letter A.

< tt > MMIX </ tt > ( pronounced em-mix ) is a 64-bit RISC architecture designed by Donald Knuth, with significant contributions by John L. Hennessy ( who contributed to the design of the MIPS architecture ) and Richard L. Sites ( who was an architect of the Alpha architecture ).

< tt > MMIX </ tt > is a 64-bit RISC computer, with 256 64-bit general-purpose registers and 32 64-bit special-purpose registers.

The < tt > MMIX </ tt > instruction set comprises 256 opcodes, one of which is reserved for future expansion.

< tt > MMIX </ tt > uses IEEE 754 floating-point numbers.

< tt > MMIX </ tt > programs are typically constructed using the < tt > MMIXAL </ tt > assembly language.

There are 256 general purpose architectural registers in an < tt > MMIX </ tt > chip, designated by $ 0 through $ 255 and 32 special physical architectural registers.

#: A constant identifying this particular < tt > MMIX </ tt > processor.

As of July 2010, no known hardware implementations of the < tt > MMIX </ tt > instruction set architecture exist.

However, the fpgammix project implements < tt > MMIX </ tt > in Verilog, making it possible to implement using a field-programmable gate array.

The < tt > MMIX </ tt > instruction set architecture is supported by a number of software tools for computer architecture research and software development.

* MMIXware – Donald Knuth ’ s < tt > MMIX-SIM </ tt > simple ( behavioral ) simulator, < tt > MMIXAL </ tt > assembler, test suite, sample programs, full documentation, and < tt > MMIX </ tt > architectural ( pipeline ) simulator ( file ).

* MMIXX – An X11-based graphics package contributed by Andrew Pochinsky of MIT ’ s Center for Theoretical Physics which, when combined with the MMIXware sources above, augments the < tt > MMIX </ tt > virtual machine with a 640 × 480 pixel, true-color ‘ virtual display ’ ( for UNIX / Linux ).

The GNU Compiler Collection includes an < tt > MMIX </ tt > back-end for its C / C ++ compilers, contributed by Hans-Peter Nilsson and part of the main GCC distribution since late 2001.

As of January 2011, the < tt > MMIX </ tt > back-end to GCC continues to be actively developed and maintained by volunteers.

* Installation instructions for GCC + < tt > MMIX </ tt > tools by Hans-Peter Nilsson.

< tt > MMIX </ tt > Options for GNU GCC version 4. 5. 2 ( GNU GCC Web site ).

Because the clocks had been on average well above sea level, this meant that TAI slowed down, by about 10 < sup >− 12 </ sup >.

* If it is required to use a single number X as an estimate for the value of numbers, then the arithmetic mean does this best, in the sense of minimizing the sum of squares ( x < sub > i </ sub > − X )< sup > 2 </ sup > of the residuals.

If F ≥ F < sub > Critical </ sub > ( Numerator DF, Denominator DF, α )

η < sup > 2 </ sup > ( eta-squared ):

He also offers a conversion table ( see Cohen, 1988, p. 283 ) for eta squared ( η < sup > 2 </ sup >) where 0. 0099 constitutes a small effect, 0. 0588 a medium effect and 0. 1379 a large effect.

When there are only two means to compare, the t-test and the ANOVA F-test are equivalent ; the relation between ANOVA and t is given by F = t < sup > 2 </ sup >.

With the formula C < sub > n </ sub > H < sub > 2n + 2 </ sub >, Alkanes belong to a homologous series of organic compounds in which the members differ by a constant relative molecular mass of 14.

The number of carbon atoms is used to define the size of the alkane ( e. g., C < sub > 2 </ sub >- alkane ).

The simplest possible alkane ( the parent molecule ) is methane, CH < sub > 4 </ sub >.