text: #include <eve/function/diff/cot.hpp>
  #include <eve/wide.hpp>
  #include <iostream>
  
  using wide_ft = eve::wide <float, eve::fixed<4>>;
  
  int main()
  {
    wide_ft pf = { 0.0f, 1.0f, -1.0f, -0.5f};
  
    std::cout
      << "---- simd" << '\n'
      << "<- pf                   = " << pf << '\n'
      << "-> diff(cot)(pf) = " << eve::diff(eve::cot)(pf) << '\n';
  
    float xf = 1.0f;
  
    std::cout
      << "---- scalar"  << '\n'
      << "<- xf                   = " << xf << '\n'
      << "-> diff(cot)(xf) = " << eve::diff(eve::cot)(xf) << '\n'; 
    return 0;
  }
  