<P> In mathematics , an operation is a calculation from zero or more input values ( called operands ) to an output value . The number of operands is the arity of the operation . The most commonly studied operations are binary operations of arity 2 , such as addition and multiplication , and unary operations of arity 1 , such as additive inverse and multiplicative inverse . An operation of arity zero , or 0 - ary operation is a constant . The mixed product is an example of an operation of arity 3 , or ternary operation . Generally , the arity is supposed to be finite , but infinitary operations are sometimes considered . In this context , the usual operations , of finite arity are also called finitary operations . </P>
<P> In mathematics , an operation is a calculation from zero or more input values ( called operands ) to an output value . The number of operands is the arity of the operation . The most commonly studied operations are binary operations of arity 2 , such as addition and multiplication , and unary operations of arity 1 , such as additive inverse and multiplicative inverse . An operation of arity zero , or 0 - ary operation is a constant . The mixed product is an example of an operation of arity 3 , or ternary operation . Generally , the arity is supposed to be finite , but infinitary operations are sometimes considered . In this context , the usual operations , of finite arity are also called finitary operations . </P>
a calculation from input values such as add subtract multiply and divide
a calculation from input values such as add subtract multiply and divide
operation
operation