dft_tools/doc/reference/c++/arrays/mapped_fnt.rst

.. highlight:: c

.. _Mapped:

Simple functions on arrays
==================================

The following functions are mapped

* abs 
* real
* imag
* pow
* cos
* sin
* tan
* cosh
* sinh
* tanh
* acos
* asin
* atan
* exp
* log
* sqrt
* floor

Example : 

.. compileblock::

    #include <triqs/arrays.hpp>
    using triqs::arrays::matrix; using triqs::clef::placeholder;
 
    int main(){
       placeholder<0> i_; placeholder<1> j_;
       matrix<double> A(2,2);  
       A(i_,j_) <<  i_ - j_ ;

       std::cout << "A = "<<A << std::endl;
       std::cout << "abs(A)= "<<matrix<double>(abs(A))<< std::endl;
    }