Sets or returns whether the label will contain the equation for the trendline.
The equation is dynamically calculated based on the current values used in the trendline's Series
. Since this equation is dynamically calculated by Excel, it is not accessible through the ExcelWriter API. This property only adjusts the visibility of the equation within the trendline's label. If you wish to adjust the formatting of the equation, use the Trendline.TrendlineLabel