The btnEquals_Click event handler evaluates the expression in the text box using the EvaluateExpression function, which uses a DataTable to compute the result.

Private Sub btnMultiply_Click(sender As Object, e As EventArgs) Handles btnMultiply.Click txtDisplay.Text &= "*" End Sub

In this article, we will provide a comprehensive guide on creating a scientific calculator using Visual Basic 10. The calculator will have the ability to perform basic arithmetic operations, trigonometric functions, exponential functions, and logarithmic functions.

Private Sub btn4_Click(sender As Object, e As EventArgs) Handles btn4.Click txtDisplay.Text &= "4" End Sub

Private Sub btnDivide_Click(sender As Object, e As EventArgs) Handles btnDivide.Click txtDisplay.Text &= "/" End Sub

The scientific function buttons ( btnSin , btnCos , btnTan , btnExp , btnLog ) evaluate the corresponding mathematical function using the Math class.