// PR 3181// Origin: pete@toyon.com#include <cmath>int main(){int i = -1;int j = 9;double ans;ans = std::acos(i);ans = std::asin(i);ans = std::atan(i);ans = std::atan2(i, j);ans = std::cos(i);ans = std::cosh(i);ans = std::exp(i);ans = std::fabs(i);ans = std::floor(i);ans = std::log(i);ans = std::log10(i);ans = std::sqrt(i);ans = std::sin(i);ans = std::sinh(j);ans = std::tan(i);ans = std::tanh(i);}