The Evaluation Method:

    // ***************************************** //
    //   Evaluation Function                     //
    // ***************************************** //
FLOAT FLOAT_POLY::operator()(FLOAT x)
{
  FLOAT value;
  int i;
  
  if(head==NULL){
    //this polynomial is degenerate
    value = 0.0;
    return(value);
    }
  else{
    //this is Non NULL
    FLOAT value = 0.0;
    FLOAT product = 1.0;
    FLOAT_POLY_CELL* temp = head;
    if(temp->next==NULL && temp->power==0){
      value = temp->element;
      return value;
      }
    if(temp->next==NULL && temp->power>0){
      product = 1;
      for(i=0;i<temp->power;++i)
        product *= x;
      return(product*temp->element);
      }
    value = temp->element;
    while(temp->next!=NULL){
      product = 1.0;
      for(i=0;i<temp->power-temp->next->power;++i)
        product *= x;
      value = (temp->next->element+value*product);
      temp = temp->next;
      }
    if(temp->power>0){
      product = 1.0;
      for(i = 0;i<temp->power;++i)
        product *= x;
      value *= product;
      return value;
      }
    return(value);
    }
}