[task_01] Add solution (brstu#20)

* create trunk

* Update main.cpp

* edit readme

* edit 2 readme

readme.md

@@ -43,7 +43,7 @@
 |21|Стельмашук Иван|||||||||||
 |22|Тунчик Антон|||||||||||
 |23|Филипчук Дмитрий|||||||||||
-|24|Ярмола Александр|||||||||||
+|24|Ярмола Александр|[as0006325](./trunk/as0006325/)|:white_check_mark:|:white_check_mark:||||||||
 |25|Ярмолович Александр|||||||||||
 
 ## Группа АС-64

trunk/as0006325/task_01/doc/readme.md

@@ -0,0 +1,63 @@
+<p align="center"> Министерство образования Республики Беларусь</p>
+<p align="center">Учреждение образования</p>
+<p align="center">“Брестский Государственный технический университет”</p>
+<p align="center">Кафедра ИИТ</p>
+<br><br><br><br><br><br><br>
+<p align="center">Лабораторная работа №1</p>
+<p align="center">По дисциплине “Теория и методы автоматического управления”</p>
+<p align="center">Тема: “Моделирования температуры объекта”</p>
+<br><br><br><br><br>
+<p align="right">Выполнил:</p>
+<p align="right">Студент 3 курса</p>
+<p align="right">Группы АС-63</p>
+<p align="right">Ярмола А. О.</p>
+<p align="right">Проверила:</p>
+<p align="right">Ситковец Я. С.</p>
+<br><br><br><br><br>
+<p align="center">Брест 2024</p>
+
+---
+
+**Задание**:
+
+Let's get some object to be controlled. We want to control its temperature, which can be described by this differential equation:
+
+$$\Large\frac{dy(\tau)}{d\tau}=\frac{u(\tau)}{C}+\frac{Y_0-y(\tau)}{RC} $$ (1)
+
+where $\tau$ – time; $y(\tau)$ – input temperature; $u(\tau)$ – input warm; $Y_0$ – room temperature; $C,RC$ – some constants.
+
+After transformation we get these linear (2) and nonlinear (3) models:
+
+$$\Large y_{\tau+1}=ay_{\tau}+bu_{\tau}$$ (2)
+
+$$\Large y_{\tau+1}=ay_{\tau}-by_{\tau-1}^2+cu_{\tau}+d\sin(u_{\tau-1})$$ (3)
+
+where $\tau$ – time discrete moments ($1,2,3{\dots}n$); $a,b,c,d$ – some constants.
+
+Task is to write program (**С++**), which simulates this object temperature.
+
+Пример вывода программы:
+
+``` bash
+Enter the value for constant a: 1
+Enter the value for constant b: 2
+Enter the value for constant c: 3
+Enter the value for constant d: 4
+Enter the initial value for current temperature, y: 10
+Enter the initial control value, u: 5
+Enter the number of iterations, steps: 5
+
+Linear model simulation:
+Step 1: y = 20
+Step 2: y = 30
+Step 3: y = 40
+Step 4: y = 50
+Step 5: y = 60
+
+Nonlinear model simulation:
+Step 1: y = 25
+Step 2: y = -163.836
+Step 3: y = -1402.67
+Step 4: y = -55075.8
+Step 5: y = -3.99004e+06
+```

trunk/as0006325/task_01/src/CMakeLists.txt

@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 3.10)
+project(Task01)
+
+add_executable(Task01 main.cpp)

trunk/as0006325/task_01/src/main.cpp

@@ -0,0 +1,57 @@
+#include <iostream>
+#include <cmath>
+
+using namespace std;
+
+// Function for linear model
+void linearModel(double y, double u, double a, double b, int steps) {
+    for (int i = 1; i <= steps; i++) {
+        double y_next = a * y + b * u;
+        cout << "Step " << i << ": y = " << y_next << endl;
+
+        y = y_next;
+    }
+}
+
+// Function for nonlinear model
+void nonlinearModel(double y, double u, double a, double b, double c, double d, int steps) {
+    double y_prev = 0;
+    double u_prev = 0;
+
+    for (int i = 1; i <= steps; i++) {
+        double y_next = a * y - b * y_prev * y_prev + c * u + d * sin(u_prev);
+        cout << "Step " << i << ": y = " << y_next << endl;
+
+        y_prev = y; // Update the previous temperature value
+        u_prev = u; // Update the previous control value
+
+        y = y_next; // Update the current temperature value
+    }
+}
+
+int main() {
+    double a, b, c, d; // Constants
+    double y; // Current temperature
+    double u; // Current heat
+    int steps; // Number of modeling steps
+
+    cout << "Enter the value for constant a: "; cin >> a;
+    cout << "Enter the value for constant b: "; cin >> b;
+    cout << "Enter the value for constant c: "; cin >> c;
+    cout << "Enter the value for constant d: "; cin >> d;
+
+    cout << "Enter the initial value for current temperature, y: "; cin >> y;
+    cout << "Enter the initial control value, u: "; cin >> u;
+
+    cout << "Enter the number of iterations, steps: "; cin >> steps;
+
+    // Linear model
+    cout << "\nLinear model simulation:\n";
+    linearModel(y, u, a, b, steps);
+
+    // Nonlinear model
+    cout << "\nNonlinear model simulation:\n";
+    nonlinearModel(y, u, a, b, c, d, steps);
+
+    return 0;
+}