Maeckes logo

<    1      2    >


Domain of a logarithm

The domain of a logarithm is ( 0, ∞ ).

 


Explanation

Of course, negative numbers do not have a logarithm, because if you want to calculate loga(–2), you get a dislike: log(–2) = x   ⇒   ax = –2 . If a > 0, then ax must be positive for every value of x and ax = –2 is not possible.

 


Deutsch   Español   Français   Nederlands   中文