private void button30_Click(object sender, EventArgs e) { if (chuoi1 != null) { chuoi1 = ToanHoc.canbac(double.Parse(chuoi1), 3).ToString(); } hienthi(); }
private void button31_Click(object sender, EventArgs e) { if (chuoi1 != null) { chuoi1 = ToanHoc.binhphuong(10, double.Parse(chuoi1)).ToString(); } hienthi(); }
private void button_n_factorial_Click(object sender, EventArgs e) { if (chuoi1 != null) { chuoi1 = ToanHoc.giaithua(int.Parse(chuoi1)).ToString(); } hienthi(); }
private void button_pi_Click(object sender, EventArgs e) { chuoi1 = ToanHoc.pi().ToString(); hienthi(); kiemtra = true; }