A function is a relation between two variables. One of the variable is called dependent variable
and the other is called the independent variable. For every value of the independent variable,
there is one(and only one) corresponding value of the dependent variable. This is a special point of
function.e.g y=2n-1 if n=2 then y=3 n=3 y=5 yand n have relationship.If the two or above answer have no relationship,
it is not a function.
希望可以令你明白 我e+學緊function
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本帖最後由 鍾倩怡 於 2006-10-20 05:33 PM 編輯 ]
