^{IMultiplyFunction
Hierarchy}

<sup>Type Library
TeeChartx

Description
MultiplyFunction may be added to your project by Chart Editor at design time or at runtime using code. Default period for MultiplyFunction is 1 (By default, multiply will show the multiplication of all series at each axis point). Period is applicable only to the number of axis points, Period 1 = 1 axis point; period 2 = 2 axis points, etc..</sup>

^{Multiply will work with any number of input series as datasource. The Datasource is best defined using the Chart Editor.}

^{MultiplyFunction class Example}

^{To set the period for MultiplyFunction you should use the FunctionType property of Series}

^{To define a function series by code you should first create a new series for the function. The series may be of any type.}

^{Visual Basic}

^{{ Set the function using the SetFunction method}.}

^{TChart1.Series( 0 ).SetFunction(tfMultiply)}

^{{You may then define the period for the function - here setting it to to 5}}

^{TChart1.Series( 0 ).FunctionType.Period=5}

^{To undefine (delete) a function defined for the series delete or inactivate the Series or redefine the datasource.}