Also notice that we require the function to be continuous in the interval of integration. This was also a requirement in the definition of the definite integral. We didnât make a big deal about this in the last section. In this section however, we will need to keep this condition in mind as we do our evaluations.
A metallic solid or liquid that is composed of a homogeneous mixture of two or more metals or of metals and nonmetal or metalloid elements, usually for the purpose of imparting or increasing specific characteristics or properties: Brass is an alloy of zinc and copper. 2. A mixture; an amalgam: Television news has ...
An alloy might be homogeneous or might contain small particles of components that can be viewed with a microscope. Brass is an example of an alloy, being a homogeneous mixture of copper and zinc. Another example is steel, which is an alloy of iron with carbon and possibly other metals. The purpose of alloying is to produce desired properties in a metal that naturally lacks them.