private void button1_Click_1(object sender, EventArgs e)
{
try
{
double firstNumber = Convert.ToDouble(textBox1.Text);
IOoneCalculator calculator = OneArgumentFactory.CreateCalculator(((Button)sender).Name);
double answerDigit = calculator.Calculate(firstNumber);
textBox3.Text = answerDigit.ToString();
}
catch (Exception exc)
{
textBox3.Text = exc.Message;
}
}