The next thing we need to do is add an argument. In the first column of the empty row in the arguments grid, select the argument type Double as shown below.
In the second column, type the argument name Z.
Fill in the description column, as follows:
Z is the value for which you want the distribution
The columns describing the argument should now contain the following:
Type: Double Name: Z Description: Z is the value for which you want the distribution
We have now finished specifying our add-in function. Click on the OK button to dismiss the Wizard and update the source code.