Finally, we reach a complex number of the nth order.
If such a complex number is written (as usual) in the form x i e l +x 2 e 2 +...
Also the "unit" e l (or e,) considered as a number of the system is merely a shortened form for the complex number (+I) ei +0e2+ +oen.
Accordingly, the typical form for such a complex number is x+yi, and then with this notation the above-mentioned definition of multiplication is invariably adopted.
Chinese food seems simple at first, but it is really made up of a complex number of vegetables, meats, sauces, spices, and preserved foods that blend together to form many intricate cuisines.
