Communications Toolbox    

Galois Field Computations
+ -
Addition and subtraction of Galois arrays
* / \
Matrix multiplication and division of Galois arrays
.* ./ .\
Elementwise multiplication and division of Galois arrays
^
Matrix exponentiation of Galois array
.^
Elementwise exponentiation of Galois array
' .'
Transpose of Galois array
==, ~=
Relational operators for Galois arrays
all
True if all elements of a Galois vector are nonzero
any
True if any element of a Galois vector is nonzero
conv
Convolution of Galois vectors
convmtx
Convolution matrix of Galois field vector
cosets
Produce cyclotomic cosets for a Galois field
deconv
Deconvolution and polynomial division
det
Determinant of square Galois matrix
dftmtx
Discrete Fourier transform matrix in a Galois field
diag
Diagonal Galois matrices and diagonals of a Galois matrix
fft
Discrete Fourier transform
filter
One-dimensional digital filter over a Galois field
gf
Create a Galois field array
gftable
Generate a file to accelerate Galois field computations
ifft
Inverse discrete Fourier transform
inv
Inverse of Galois matrix
isempty
True for empty Galois arrays
isprimitive
True for a primitive polynomial for a Galois field
length
Length of Galois vector
log
Logarithm in a Galois field
lu
Lower-Upper triangular factorization of Galois array
minpol
Find the minimal polynomial of an element of a Galois field
mldivide
Matrix left division \ of Galois arrays
polyval
Evaluate polynomial in Galois field
primpoly
Find primitive polynomials for a Galois field
rank
Rank of a Galois array
reshape
Reshape Galois array
roots
Find polynomial roots across a Galois field
size
Size of Galois array
tril
Extract lower triangular part of Galois array
triu
Extract upper triangular part of Galois array


  Special Filters Computations in Galois Fields of Odd Characteristic