< cpp‎ | numeric‎ | valarray
Revision as of 13:26, 5 June 2014 by Diego91b (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Defined in header <valarray>
template< class T >
valarray<T> tan( const valarray<T>& va );

For each element in va computes tangent of the value of the element.


[edit] Parameters

va - value array to apply the operation to

[edit] Return value

Value array containing tangents of the values in va.

[edit] Notes

Unqualified function (tan) is used to perform the computation. If such function is not available, std::tan is used due to argument dependent lookup.

The function can be implemented with the return type different from std::valarray. In this case, the replacement type has the following properties:

[edit] Possible implementation

template<class T>
valarray<T> tan(const valarray<T>& va)
    valarray<T> other = va;
    for (T &i : other) {
        i = tan(i);

[edit] Example

[edit] See also

applies the function std::sin to each element of valarray
(function template) [edit]
applies the function std::cos to each element of valarray
(function template) [edit]
applies the function std::atan to each element of valarray
(function template) [edit]
computes tangent (tan(x))
(function) [edit]
computes tangent of a complex number (tan(z))
(function template) [edit]