LabF3

#pragma once
#include <math.h>

#pragma endregion
private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
            double xn,xk,xh,x,y,a,ymax,ymin,yt;
            int n,i;
            if ((textBox1->Text!="")&&(textBox2->Text!="")&& (textBox3->Text!="")&&(textBox4->Text!=""))
            {
                xn = Convert::ToDouble(textBox1->Text);
                xk = Convert::ToDouble(textBox2->Text);
                xh = Convert::ToDouble(textBox3->Text);
                a =  Convert::ToDouble(textBox4->Text);
                int k =0;
                k = dataGridView1->ColumnCount;
                if (k != 0)
                for (int i = 0; i < k; i++)
                dataGridView1->Columns->Clear();
                dataGridView1->ColumnCount = 2;
                dataGridView1->Rows->Add(ceil((xk-xn)/xh)+1);
                dataGridView1->Rows[0]->Cells[0]->Value =Convert::ToString("      x");
                dataGridView1->Rows[0]->Cells[1]->Value =Convert::ToString("      Y");
                i=1;
                x=xn;
                ymax=-1.8e307;ymin=1.8e307;
                while (x<=xk)
                {
                    if (x<=0){y=pow(sin(pow(x,3)),2);}
                    else
                    if (x<=a) {y=pow(6*x-x*x-1,0.2);}
                    else
                    if (x>a) {y=sin(x-exp(-x));}
                    dataGridView1->Rows[i]->Cells[0]->Value =Convert::ToString(x);
                    yt=ceil(y*100)/100;
                    dataGridView1->Rows[i]->Cells[1]->Value =Convert::ToString(yt);
                    if (y>ymax) ymax=ceil(y*100)/100;
                    if (y<ymin) ymin=ceil(y*100)/100;
                    x=x+xh;
                    i++;
                }
                textBox5->Text = Convert::ToString (ymax);
                textBox6->Text = Convert::ToString (ymin);
            }
            else {MessageBox::Show( "Заполните данные", "Ошибка ввода", MessageBoxButtons::OK, MessageBoxIcon::Exclamation );}
        }
};
}