main.cpp

#include "graphics.cpp"
#include "dixotomia.cpp"
#include "gold_sechenie.cpp"
#include "fib.cpp"
#include "parser.cpp"
#include <iostream>
#include <string>

#if defined __has_include
#   if __has_include (<windows.h>)
#       include <windows.h>
#   endif
#endif


int main(int argc, char **argv) {

#if defined __has_include
#   if __has_include (<windows.h>)
#       define INCLUDED true
#   else
#       define INCLUDED false
#   endif
#endif

#if INCLUDED
    SetConsoleOutputCP(CP_UTF8);
#endif

    double left_border,right_border,eps,choice,l;
    typedef std::tuple<std::tuple<double, double>, std::map<int, std::tuple<double, double>>> FuncOutput;
    std::string function;

    std::cout << R"aha(
 ______     __  __     ______   ______     ______     __    __     __  __     __    __    
/\  ___\   /\_\_\_\   /\__  _\ /\  == \   /\  ___\   /\ "-./  \   /\ \/\ \   /\ "-./  \   
\ \  __\   \/_/\_\/_  \/_/\ \/ \ \  __<   \ \  __\   \ \ \-./\ \  \ \ \_\ \  \ \ \-./\ \  
 \ \_____\   /\_\/\_\    \ \_\  \ \_\ \_\  \ \_____\  \ \_\ \ \_\  \ \_____\  \ \_\ \ \_\ 
  \/_____/   \/_/\/_/     \/_/   \/_/ /_/   \/_____/   \/_/  \/_/   \/_____/   \/_/  \/_/ 
                
                                                by kerogik, D9veth, KaramnovM, SmyatskikhAlexander
                )aha" << "\n";
    
    std::cout << "Введите значение левой границы" << std::endl;
    std::cin >> left_border;
    std::cout << "Введите значение правой границы" << std::endl;
    std::cin >> right_border;
    std::cout << "Введите значение погрешности" << std::endl;
    std::cin >> eps;
    std::cout << "Что нужно найти? \n 1-максимум \n 2-минимум" << std::endl;
    std::cin >> choice;
    std::cout << "Введите выражение:" << std::endl;
    std::cin >> function;
    FuncOutput result_dichotomy = dixot(left_border, right_border, eps, choice, function);
    FuncOutput result_section = golden_section(choice, right_border, left_border, eps, function);
    std::cout << "Дихотомия:" << (std::get<0>(std::get<0>(result_dichotomy))+std::get<1>(std::get<0>(result_dichotomy))) / 2 << std::endl;
    std::cout << "Золотое Сечение:" << (std::get<0>(std::get<0>(result_section))+std::get<1>(std::get<0>(result_section))) / 2 << std::endl;
    std::cout << "Введите интервал для фибоначчи (обычно 0.01)" << std::endl;
    std::cin >> l;
    FuncOutput result_fib = fib(left_border, right_border, l, eps, function);
    std::cout << "Фибоначчи:" << (std::get<0>(std::get<0>(result_fib))+std::get<1>(std::get<0>(result_fib))) / 2 << std::endl;

    graphics_func(left_border, right_border, std::get<0>(std::get<0>(result_dichotomy)), 1, function, std::get<1>(result_dichotomy));
    graphics_func(left_border, right_border, std::get<0>(std::get<0>(result_section)), 2, function, std::get<1>(result_section));
    graphics_func(left_border, right_border, std::get<0>(std::get<0>(result_fib)), 3, function, std::get<1>(result_fib));

    graphics_precision(std::get<1>(result_dichotomy), 1, left_border, right_border);
    graphics_precision(std::get<1>(result_section), 2, left_border, right_border);
    graphics_precision(std::get<1>(result_fib), 3, left_border, right_border);

    graphics_iter_precision(left_border, right_border, 1, function); //dichotomy
    graphics_iter_precision(left_border, right_border, 2, function); //section
    graphics_iter_precision(left_border, right_border, 3, function); //fib

    return 0;
}