//== Hyperbolic functions ==// //== Created by: ABSOLUTE ==// #include #include using namespace std; double sinh ( double key ) { return ( exp(key) - exp(-key) ) / 2; } double cosh ( double key ) { return ( exp(key) + exp(-key) ) / 2; } double tanh ( double key ) { return sinh(key) / cosh(key); }; double coth ( double key ) { if( sinh(key) != 0 ) { return cosh( key ) / sinh( key ); } else { cout << "ERROR for "; return key; }; }; double asinh ( double key ) { return log( key + sqrt( key * key + 1 )); }; double acosh ( double key ) { if( key >= 1 ) { return log( key + sqrt( key * key - 1 )); } else { cout << "ERROR for "; return key; }; }; double atanh ( double key ) { if( key <= 1 && key >= -1) { return log(( 1 + key ) / ( 1 - key )) / 2; } else { cout << "ERROR for "; return key; }; }; double acoth ( double key ) { if( key >= 1 && key <= -1) { return log(( key + 1 ) / ( key - 1 )) / 2; } else { cout << "ERROR for "; return key; }; }; int main() { double key; cin >> key; cout<< "Sinh("<