Заключение. 
Разработка приложения для работы с математическими функциями

В ходе выполнения курсовой работы был собран и изучен теоретический материал по созданию приложения с графическим интерфейсом.

Реализуя цель данного проекта, был улучшен навык использования среды программирования Visual Studio 2015.

В результате создано работоспособное приложение «Построение графиков математических функций». Также при проведении тестирования программы не было обнаружено ошибок. Все поставленные задачи рассмотрены, цель курсовой работы достигнута.

СПИСОК ИСПОЛЬЗОВАННЫХ ИСТОЧНИКОВ

• 1. Ашарина И. В. Объектно-ориентированное программирование в С++: лекции и упражнения: учебное пособие / И. В. Ашарина. — М.: Телеком, 2012. — 319 с.
• 2. Подбельский В. В. Курс программирования на языке Си / В.В. ПодбельскийМ.: Пресс, 2012. — 384 с.
• 3. Логинова Ф. С. Объектно-ориентированные методы программирования. / Ф.С. Логинова— М.: Пресс, 2012. — 208 с.
• 4. Павловская Т. А. «C/C++. Программирование на языке высокого уровня» / Т. А. Павловская. — СПб.: Питер, 2012 — 367 с.
• 5. Хабибуллин И. Ш. «Программирование на языке высокого уровня. C/C++». / И.Ш. ХабибуллинСпб.: Питер, 2013 — 405 с.
• 6. Шилдт Г. «C++ базовый курс» / Г. ШилдтСпб.: Питер, 2012 — 709 с.
• 7. Павловская Т. А. «C/C++. Структурное программирование: Практикум» / Т.А. ПавловскаяСПб.: Питер, 2013 — 451 с.

ПРИЛОЖЕНИЕ, А Код файла MyForm. cpp:

#include «MyForm.h» .

using namespace System;

using namespace System: Windows:Forms;

[STAThread].

void main (array^ arg) {.

Application:EnableVisualStyles ();

Application:SetCompatibleTextRenderingDefault (false);

Проект1:MyForm form;

Application:Run (%form);

}.

System:Void Проект1: MyForm:button2_Click (System:Object ^ sender, System: EventArgs ^ e).

{.

Points->Clear ();

pictureBox1->Invalidate ();

textBox2->Text = «» ;

textBox3->Text = «» ;

return System: Void ();

}.

System:Void Проект1: MyForm:comboBox1_SelectedIndexChanged (System:Object ^ sender, System: EventArgs ^ e).

{.

textBox1->Text = (String^)comboBox1->SelectedItem;

/*switch (comboBox1->SelectedIndex).

{.

case 0: textBox1->Text = «Sin (x)»; break;

case 1: textBox1->Text = «Cos (x)»; break;

case 2: textBox1->Text = «Tg (x)»; break;

}*/.

MakeFunct ();

return System: Void ();

}.

Код файла MyForm. h:

#pragma once.

#include.

namespace Проект1 {.

using namespace System;

using namespace System: ComponentModel;

using namespace System: Collections;

using namespace System: Windows:Forms;

using namespace System: Data;

using namespace System: Drawing;

/// Сводка для MyForm.

public ref class MyForm: public System: Windows:Forms:Form.

{.

int count = 0;

private: System: Windows:Forms:PictureBox^ pictureBox1;

private: System: Windows:Forms:TextBox^ textBox1;

private: System: Windows:Forms:Label^ label1;

private: System: Windows:Forms:Button^ button2;

private: System: Windows:Forms:Label^ label2;

private: System: Windows:Forms:Label^ label3;

private: System: Windows:Forms:TextBox^ textBox2;

private: System: Windows:Forms:TextBox^ textBox3;

private: System: Windows:Forms:Label^ label4;

private: System: Windows:Forms:ComboBox^ comboBox1;

private: System: Windows:Forms:Label^ label5;

private: System: Windows:Forms:Label^ label6;

private: System: Windows:Forms:TextBox^ textBox4;

private: System: Windows:Forms:TextBox^ textBox5;

private: System: Windows:Forms:Label^ label7;

private: System: Windows:Forms:TextBox^ textBox6;

private: System: Windows:Forms:Label^ label8;

ArrayList^ Points = gcnew (ArrayList);

public:

MyForm (void).

{.

InitializeComponent ();

//TODO: добавьте код конструктора.

}.

protected:

/// Освободить все используемые ресурсы.

~MyForm ().

{.

if (components).

{.

delete components;

}.

}.

private: System: Windows:Forms:Button^ button1;

protected:

private:

/// Обязательная переменная конструктора.

System:ComponentModel:Container ^components;

#pragma region Windows Form Designer generated code.

/// Требуемый метод для поддержки конструктора — не изменяйте.

/// содержимое этого метода с помощью редактора кода.

void InitializeComponent (void).

{.

this->button1 = (gcnew System: Windows:Forms:Button ());

this->pictureBox1 = (gcnew System: Windows:Forms:PictureBox ());

this->textBox1 = (gcnew System: Windows:Forms:TextBox ());

this->label1 = (gcnew System: Windows:Forms:Label ());

this->button2 = (gcnew System: Windows:Forms:Button ());

this->label2 = (gcnew System: Windows:Forms:Label ());

this->label3 = (gcnew System: Windows:Forms:Label ());

this->textBox2 = (gcnew System: Windows:Forms:TextBox ());

this->textBox3 = (gcnew System: Windows:Forms:TextBox ());

this->label4 = (gcnew System: Windows:Forms:Label ());

this->comboBox1 = (gcnew System: Windows:Forms:ComboBox ());

this->label5 = (gcnew System: Windows:Forms:Label ());

this->label6 = (gcnew System: Windows:Forms:Label ());

this->textBox4 = (gcnew System: Windows:Forms:TextBox ());

this->textBox5 = (gcnew System: Windows:Forms:TextBox ());

this->label7 = (gcnew System: Windows:Forms:Label ());

this->textBox6 = (gcnew System: Windows:Forms:TextBox ());

this->label8 = (gcnew System: Windows:Forms:Label ());

(cli:safe_cast (this->pictureBox1))->BeginInit ();

this->SuspendLayout ();

// button1.

this->button1->Font = (gcnew System: Drawing:Font (L" Microsoft Sans Serif", 8.25 °F, System: Drawing:FontStyle:Regular, System: Drawing:GraphicsUnit:Point,.

static_cast (204)));

this->button1->Location = System: Drawing:Point (318, 12);

this->button1->Name = L" button1″ ;

this->button1->Size = System: Drawing:Size (101, 20);

this->button1->TabIndex = 0;

this->button1->Text = L" Построить" ;

this->button1->UseVisualStyleBackColor = true;

this->button1->Click += gcnew System: EventHandler (this, &MyForm:button1_Click);

// pictureBox1.

this->pictureBox1->Location = System: Drawing:Point (12, 39);

this->pictureBox1->Name = L" pictureBox1″ ;

this->pictureBox1->Size = System: Drawing:Size (300, 300);

this->pictureBox1->TabIndex = 9;

this->pictureBox1->TabStop = false;

this->pictureBox1->Paint += gcnew System: Windows:Forms:PaintEventHandler (this, &MyForm:pictureBox1_Paint);

// textBox1.

this->textBox1->Location = System: Drawing:Point (36, 13);

this->textBox1->Name = L" textBox1″ ;

this->textBox1->Size = System: Drawing:Size (276, 20);

this->textBox1->TabIndex = 10;

// label1.

this->label1->AutoSize = true;

this->label1->Location = System: Drawing:Point (12, 16);

this->label1->Name = L" label1″ ;

this->label1->Size = System: Drawing:Size (18, 13);

this->label1->TabIndex = 11;

this->label1->Text = L" y=";

// button2.

this->button2->Font = (gcnew System: Drawing:Font (L" Microsoft Sans Serif", 8.25 °F, System: Drawing:FontStyle:Regular, System: Drawing:GraphicsUnit:Point,.

static_cast (204)));

this->button2->Location = System: Drawing:Point (318, 39);

this->button2->Name = L" button2″ ;

this->button2->Size = System: Drawing:Size (101, 20);

this->button2->TabIndex = 12;

this->button2->Text = L" Очистить" ;

this->button2->UseVisualStyleBackColor = true;

this->button2->Click += gcnew System: EventHandler (this, &MyForm:button2_Click);

// label2.

this->label2->AutoSize = true;

this->label2->Location = System: Drawing:Point (12, 342);

this->label2->Name = L" label2″ ;

this->label2->Size = System: Drawing:Size (122, 13);

this->label2->TabIndex = 13;

this->label2->Text = L" Область определения:" ;

// label3.

this->label3->AutoSize = true;

this->label3->Location = System: Drawing:Point (12, 364);

this->label3->Name = L" label3″ ;

this->label3->Size = System: Drawing:Size (17, 13);

this->label3->TabIndex = 14;

this->label3->Text = L" X:" ;

// textBox2.

this->textBox2->Location = System: Drawing:Point (35, 361);

this->textBox2->Name = L" textBox2″ ;

this->textBox2->Size = System: Drawing:Size (379, 20);

this->textBox2->TabIndex = 15;

// textBox3.

this->textBox3->Location = System: Drawing:Point (35, 387);

this->textBox3->Name = L" textBox3″ ;

this->textBox3->Size = System: Drawing:Size (379, 20);

this->textBox3->TabIndex = 17;

// label4.

this->label4->AutoSize = true;

this->label4->Location = System: Drawing:Point (12, 390);

this->label4->Name = L" label4″ ;

this->label4->Size = System: Drawing:Size (17, 13);

this->label4->TabIndex = 16;

this->label4->Text = L" Y:" ;

// comboBox1.

this->comboBox1->FormattingEnabled = true;

this->comboBox1->Items->AddRange (gcnew cli: array (3) { L" Sin (x)", L" Cos (x)", L" Pow (x, 2)" });

this->comboBox1->Location = System: Drawing:Point (318, 102);

this->comboBox1->Name = L" comboBox1″ ;

this->comboBox1->Size = System: Drawing:Size (101, 21);

this->comboBox1->TabIndex = 18;

this->comboBox1->SelectedIndexChanged += gcnew System: EventHandler (this, &MyForm:comboBox1_SelectedIndexChanged);

// label5.

this->label5->AutoSize = true;

this->label5->Location = System: Drawing:Point (318, 86);

this->label5->Name = L" label5″ ;

this->label5->Size = System: Drawing:Size (64, 13);

this->label5->TabIndex = 19;

this->label5->Text = L" Построить:" ;

// label6.

this->label6->AutoSize = true;

this->label6->Location = System: Drawing:Point (315, 137);

this->label6->Name = L" label6″ ;

this->label6->Size = System: Drawing:Size (23, 13);

this->label6->TabIndex = 20;

this->label6->Text = L" От:" ;

// textBox4.

this->textBox4->Location = System: Drawing:Point (344, 134);

this->textBox4->Name = L" textBox4″ ;

this->textBox4->Size = System: Drawing:Size (75, 20);

this->textBox4->TabIndex = 21;

this->textBox4->Text = L" -100″ ;

// textBox5.

this->textBox5->Location = System: Drawing:Point (344, 160);

this->textBox5->Name = L" textBox5″ ;

this->textBox5->Size = System: Drawing:Size (75, 20);

this->textBox5->TabIndex = 23;

this->textBox5->Text = L" 100″ ;

// label7.

this->label7->AutoSize = true;

this->label7->Location = System: Drawing:Point (315, 163);

this->label7->Name = L" label7″ ;

this->label7->Size = System: Drawing:Size (25, 13);

this->label7->TabIndex = 22;

this->label7->Text = L" До:" ;

// textBox6.

this->textBox6->Location = System: Drawing:Point (344, 196);

this->textBox6->Name = L" textBox6″ ;

this->textBox6->Size = System: Drawing:Size (75, 20);

this->textBox6->TabIndex = 25;

this->textBox6->Text = L" 1″ ;

// label8.

this->label8->AutoSize = true;

this->label8->Location = System: Drawing:Point (315, 199);

this->label8->Name = L" label8″ ;

this->label8->Size = System: Drawing:Size (30, 13);

this->label8->TabIndex = 24;

this->label8->Text = L" Шаг:" ;

// MyForm.

this->AutoScaleDimensions = System: Drawing:SizeF (6, 13);

this->AutoScaleMode = System: Windows:Forms:AutoScaleMode:Font;

this->ClientSize = System: Drawing:Size (426, 419);

this->Controls->Add (this->textBox6);

this->Controls->Add (this->label8);

this->Controls->Add (this->textBox5);

this->Controls->Add (this->label7);

this->Controls->Add (this->textBox4);

this->Controls->Add (this->label6);

this->Controls->Add (this->label5);

this->Controls->Add (this->comboBox1);

this->Controls->Add (this->textBox3);

this->Controls->Add (this->label4);

this->Controls->Add (this->textBox2);

this->Controls->Add (this->label3);

this->Controls->Add (this->label2);

this->Controls->Add (this->button2);

this->Controls->Add (this->label1);

this->Controls->Add (this->textBox1);

this->Controls->Add (this->pictureBox1);

this->Controls->Add (this->button1);

this->Name = L" MyForm" ;

this->Text = L" MyForm" ;

this->FormClosing += gcnew System: Windows:Forms:FormClosingEventHandler (this, &MyForm:MyForm_FormClosing);

this->Load += gcnew System: EventHandler (this, &MyForm:MyForm_Load);

(cli:safe_cast (this->pictureBox1))->EndInit ();

this->ResumeLayout (false);

this->PerformLayout ();

}.

#pragma endregion.

void MakeFunct ().

{.

try.

{.

Points->Clear ();

for (double i = double: Parse (textBox4->Text); i Text); i += double: Parse (textBox6->Text)).

{.

try.

{.

double x = (static_cast (NCalc:Expression (textBox1->Text->Replace («x», i. ToString ())).Evaluate ()));

if (!Double:IsInfinity (x) && x > -214 748 364).

{.

Points->Add (Point ((pictureBox1->Width / 2) + i, (pictureBox1->Height / 2) — x));

textBox2->Text += ((pictureBox1->Width / 2) + i) + «,» ;

textBox3->Text += ((pictureBox1->Height / 2) — x) + «,» ;

}.

}.

catch (Exception^ ex).

{.

int x = (static_cast (NCalc:Expression (textBox1->Text->Replace («x», i. ToString ())).Evaluate ()));

if (x > -214 748 364).

{.

Points->Add (Point ((pictureBox1->Width / 2) + i, (pictureBox1->Height / 2) — x));

textBox2->Text += i + «,» ;

textBox3->Text += x + «,» ;

}.

}.

}.

pictureBox1->Invalidate ();

}.

catch (const std: exception&).

{.

}.

}.

private: System: Void button1_Click (System:Object^ sender, System: EventArgs^ e) {.

MakeFunct ();

}.

private: System: Void pictureBox1_Paint (System:Object^ sender, System: Windows:Forms:PaintEventArgs^ e) {.

Graphics^ g = e->Graphics;

g->DrawLine (Pens:Red, pictureBox1->Width / 2, 0, pictureBox1->Width / 2, pictureBox1->Height);

g->DrawLine (Pens:Red, 0, pictureBox1->Height / 2, pictureBox1->Width, pictureBox1->Height/2);

int temp = 25;

for (int i = pictureBox1->Width/2; i Width; i+=25).

{.

g->DrawString (temp.ToString (), SystemFonts: DefaultFont, Brushes: Red, i, pictureBox1->Height/2);

temp += 25;

}.

temp = -25;

for (int i = pictureBox1->Width / 2−25; i >= 0; i -= 25).

{.

g->DrawString (temp.ToString (), SystemFonts: DefaultFont, Brushes: Red, i, pictureBox1->Height / 2);

temp -= 25;

}.

temp = 25;

for (int i = pictureBox1->Height / 2−25; i >= 0; i -= 25).

{.

g->DrawString (temp.ToString (), SystemFonts: DefaultFont, Brushes: Red, pictureBox1->Width / 2, i);

temp += 25;

}.

temp = -25;

for (int i = pictureBox1->Height / 2+10; i Height; i += 25).

{.

g->DrawString (temp.ToString (), SystemFonts: DefaultFont, Brushes: Red, pictureBox1->Width / 2, i);

temp -= 25;

}.

//Преобразуем ArrayList в массив точек.

try.

{.

if (Points->Count > 0).

{.

array^ pt = gcnew array (Points->Count);

Points->CopyTo (pt);

g->DrawLines (Pens:Black, pt);

delete pt;

}.

}.

catch (std:exception ex).

{.

}.

}.

private: System: Void MyForm_FormClosing (System:Object^ sender, System: Windows:Forms:FormClosingEventArgs^ e) {.

delete Points;

}.

private: System: Void button2_Click (System:Object^ sender, System: EventArgs^ e);

private: System: Void comboBox1_SelectedIndexChanged (System:Object^ sender, System: EventArgs^ e);

private: System: Void MyForm_Load (System:Object^ sender, System: EventArgs^ e) {.

}.

};

}.

ПРИЛОЖЕНИЕ В.