Visual Basic 10 Scientific Calculator Code – Must Read

The scientific calculator will have a user-friendly interface with buttons for digits 0-9, four arithmetic operations (+, -, *, /), and various scientific functions (sin, cos, tan, exp, log, etc.). The calculator will display the results in a text box.

Private Sub btnExp_Click(sender As Object, e As EventArgs) Handles btnExp.Click Try Dim result As Double = Math.Exp(Convert.ToDouble(txtDisplay.Text)) txtDisplay.Text = result.ToString() Catch ex As Exception txtDisplay.Text = "Error" End Try End Sub

The btnEquals_Click event handler evaluates the expression in the text box using the EvaluateExpression function, which uses a DataTable to compute the result. Visual Basic 10 Scientific Calculator Code

The code above creates a scientific calculator with buttons for digits 0-9, four arithmetic operations, and various scientific functions. When a button is clicked, the corresponding digit or operator is appended to the text box.

Private Sub btnEquals_Click(sender As Object, e As EventArgs) Handles btnEquals.Click Try Dim result As Double = EvaluateExpression(txtDisplay.Text) txtDisplay.Text = result.ToString() Catch ex As Exception txtDisplay.Text = "Error" End Try End Sub The code above creates a scientific calculator with

Private Sub btnSin_Click(sender As Object, e As EventArgs) Handles btnSin.Click Try Dim angle As Double = Convert.ToDouble(txtDisplay.Text) Dim result As Double = Math.Sin(angle * Math.PI / 180) txtDisplay.Text = result.ToString() Catch ex As Exception txtDisplay.Text = "Error" End Try End Sub

Private Sub btn2_Click(sender As Object, e As EventArgs) Handles btn2.Click txtDisplay.Text &= "2" End Sub four arithmetic operations

Private Sub btnAdd_Click(sender As Object, e As EventArgs) Handles btnAdd.Click txtDisplay.Text &= "+" End Sub