The double struck symbol or letter Z is used to indicate integers because it comes from the German word "Zahl," which means "number." It was first used as such in a book entitled "Elements of Mathematics: Algebra" first published in 1939.
The book was written by a French collective of mathematicians known by the pseudonym N. Bourbaki or Nicolas Bourbaki. Their work became known as the standard reference in the field of mathematics and their use of the symbol N became an accepted method of denoting integers. A double struck capital letter I is sometimes also used to denote the ring of integers.
Learn MoreDivide integers the same way you do with whole numbers. Divide the absolute values, and then determine the sign of the answer based on the signs of the integers you are dividing.
Full Answer >Some foods that start with the letter Z are zucchini, ziti, zest and zander. Zucchini is a fast growing summer squash with soft, edible skin. Zest is the grated outer peel of citrus fruits. Ziti is a tube-shaped pasta that is commonly served with light sauces or baked in casseroles. Zander is a white freshwater fish with large flakes.
Full Answer >There are two countries that start with the letter Z: Zambia and Zimbabwe. Both countries are located in Africa.
Full Answer >In many countries, diamond markings are used to designate traffic lanes that are set aside for special traffic. Narrow diamond lanes that run near the curb are usually bicycle lanes, and diamond lanes on freeways are typically reserved for high-occupancy passenger cars and certain special classes of vehicles.
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