protected void computeFieldPolynomial(){
  if (testTrinomials()) {
    return;
  }
  if (testPentanomials()) {
    return;
  }
  testRandom();
}

protected void computeFieldPolynomial ( ) { if ( testTrinomials ( ) ) { return ; } if ( testPentanomials ( ) ) { return ; } testRandom ( ) ; }
computes the field polynomial . this can take a long time for big degrees .
