v.add(new LongConstant(ln1));
v.add(new LongConstant(ln2));
Expression e3 = new Power(v,true);
v.clear();
v.add(new FloatConstant(fn1));
v.add(new FloatConstant(fn2));
Expression e4 = new Power(v,true);
v.clear();
v.add(new DoubleConstant(dn1));
v.add(new DoubleConstant(dn2));