Sokhotsky's formula gives the distributional limit of 
as 
. Let 
be a linear functional
acting according to the formula
 |  |  |
(1)
|
 |  |  |
(2)
|
where 
and 
is the space of test functions. Then Sokhotsky's formula states that
 |
(3)
|
where 
is the delta function (Vladimirov 1971, pp. 75-76).
