private void btnEquals_Click(object sender, EventArgs e)
{
input = Parser(txtboxInputOutput.Text);
if (btnPlusClicked == true)
{
output = Arithmetic.Add(temp, input);
}
else if (btnMinusClicked == true)
{
output = Arithmetic.Subtract(temp, input);
}
else if (btnDivideClicked == true)
{
output = Arithmetic.Divide(temp, input);
}
else if (btnMultiplyClicked == true)
{
output = Arithmetic.Multiply(temp, input);
}
else if (btnInverseClicked == true)
{
output = Algebraic.Inverse(input);
}
else if (btnSquareRootClicked == true)
{
output = Algebraic.SquareRoot(input);
}
else if (btnCubeRootClicked == true)
{
output = Algebraic.CubeRoot(input);
}
else if (btnTanClicked == true)
{
output = Trigonometric.Tan(input);
}
else if (btnSinClicked == true)
{
output = Trigonometric.Sine(input);
}
else if (btnCosClicked == true)
{
output = Trigonometric.Cosine(input);
}
txtboxInputOutput.Text = output.ToString();
}
//tests if display isnt empty
// then it tests if the number is 0 or over, if so it calcuates the cube root, then displays result
// or displays an error saying number must be positive
//or displays an error for missing number
private void btnCubeRT_Click(object sender, EventArgs e)
{
if (!String.IsNullOrEmpty(txtboxDisplay.Text))
{
calcNumOne = DoubleParse(txtboxDisplay.Text);
if (calcNumOne >= 0)
{
txtboxDisplay.Text = Algebraic.CubeRoot(calcNumOne);
}
else
{
MessageBox.Show("Number must be positive", "Error Message");
txtboxDisplay.Text = "0";
}
equalPress = true;
}
else
{
MessageBox.Show("Missing number", "Error Message");
}
}
