std::exp(std::valarray)
From cppreference.com
| Defined in header <valarray>
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| template< class T > valarray<T> exp( const valarray<T>& va ); |
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For each element in va computes e raised to the power equal to the value of the element.
Contents |
[edit] Parameters
| va | - | value array to apply the operation to |
[edit] Return value
Value array containing e raised by the values in va.
[edit] Notes
Unqualified function (exp) is used to perform the computation. If such function is not available, std::exp 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:
- All const member functions of std::valarray are provided.
- std::valarray, std::slice_array, std::gslice_array, std::mask_array and std::indirect_array can be constructed from the replacement type.
- For every function taking a const std::valarray<T>& except begin() and end()(since C++11), identical functions taking the replacement types shall be added;
- For every function taking two const std::valarray<T>& arguments, identical functions taking every combination of const std::valarray<T>& and replacement types shall be added.
- The return type does not add more than two levels of template nesting over the most deeply-nested argument type.