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 | ![]() |