The following definitions apply to the 13 categories of exceptionality as defined by IDEA (listed in alphabetical. order): 1) Autism - a developmental disability significantly affecting verbal and nonverbal communication and social. interaction, generally evident before age 3 that adversely affects a child's educational performance. Other.
Introduce function notation to represent a function that takes as input the name of a. month, and gives as output the number of days in that month. The number of days in a month is a function of the name of the month, so if we name. the function.
In mathematics, the sign function or signum function (from signum, Latin for sign) is an odd mathematical function that extracts the sign of a real number. In mathematical expressions the sign function is often represented as sgn.