Communications Toolbox

Cosmetic Changes of Polynomials

To display the traditionally formatted polynomial that corresponds to a row vector containing coefficients, use gfpretty. To truncate a polynomial by removing all zero-coefficient terms that have exponents higher than the degree of the polynomial, use gftrunc. For example,

• polynom = gftrunc([1 20 394 10 0 0 29 3 0 0])
  
  polynom =
  
       1    20   394    10     0     0    29     3
  
  gfpretty(polynom)
  
                                     2       3       6      7
                     1 + 20 X + 394 X  + 10 X  + 29 X  + 3 X 
  

Note    If you do not use a fixed-width font, then the spacing in the display might not look correct.

Polynomials over Prime Fields

Polynomial Arithmetic