private void btnEquals_Click(object sender, EventArgs e)
{
equation.Text = "";
switch (operation)
{
case "+":
txtAnswer.Text = CalculatorB.Plus(value, Double.Parse(txtAnswer.Text)).ToString();
break;
case "-":
txtAnswer.Text = CalculatorB.Minus(value, Double.Parse(txtAnswer.Text)).ToString();
break;
case "*":
txtAnswer.Text = CalculatorB.Times(value, Double.Parse(txtAnswer.Text)).ToString();
break;
case "/":
txtAnswer.Text = CalculatorB.Div(value, Double.Parse(txtAnswer.Text)).ToString();
break;
}
value = Double.Parse(txtAnswer.Text);
}
private void btnBack_Click(object sender, EventArgs e)
{
CalculatorB.Back(txtAnswer);
}
private void btnSqrt_Click(object sender, EventArgs e)
{
CalculatorB.Squareroot(txtAnswer);
}
private void btnRec_Click(object sender, EventArgs e)
{
CalculatorB.Exponent(txtAnswer);
}
private void btnNegate_Click(object sender, EventArgs e)
{
CalculatorB.Negate(txtAnswer);
}