private void Clear()
{
// Clear the text in the degrees of freedom analysis text box
DFAnalysisTextBox.Text = string.Empty;
// Clear the workspace (which will clear the drawing canvas and equation editor)
WorkSpace.ClearWorkSpace();
// Clear the "last save" label
Saving_TextBlock.Text = string.Empty;
Saving_TextBlock.Visibility = System.Windows.Visibility.Collapsed;
// Reset the saving related stuff
ToolTipService.SetToolTip(SaveAsButton, "Save as...");
}