private void Функция3ToolStripMenuItem_Click(object sender, EventArgs e)
{
Form ScientificCalculationsF = new ScientificCalculations();
ScientificCalculationsF.Show();
ScientificCalculationsF.Activate();
this.Hide();
}
private void button3_Click(object sender, EventArgs e)
{
Form ScientificC = new ScientificCalculations();
ScientificC.Show();
ScientificC.Activate();
this.Hide();
}