@SuppressWarnings("unchecked")
  @Override
  public T power(final int n) {
    if (n == 0) {
      return one();
    } else if (n == 1) {
      return newInstance(coefficients);
    } else if (n % 2 == 0) {
      return (T) multiply((T) this).power(n / 2);
    } else {
      return (T) multiply((T) this).power(n / 2).multiply(this);
    }
  }
Get coefficients fq [ ].

@return the fq [ ]
crypto/algorithms/src/main/java/org/hyperledger/besu/crypto/altbn128/AbstractFqp.java