Sharks, grizzly bears and big cats may strike fear into your heart and limbic brain, but they do not even come close to being the deadliest animals on earth. Of the top ten deadliest creatures to humans most are smaller than a silver dollar! One of the few with scary fangs will likely surprise you.
Functions assign outputs to inputs. The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=xÂ² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.
Most calculus text books begin with a review of functions. A function is generally described as a mapping from one set of numbers, called the domain of the function, to another set, called the range. In simple form, if you put one number in to the function, you get another number out.