/** partial derivative of from-side active power w.r.t. to-side voltage angle */
public float getdFPdTVa() {
return _list.getdFPdTVa(_ndx);
}
/** partial derivative of from-side active power w.r.t. to-side voltage angle */
public float getdFPdTVa() {
return _list.getdFPdTVa(_ndx);
}
