Open Natural Log. Click on the 'Help'menu. Next click on 'About Natural Log', as shown in the image below.  Refer to the image below and provide the 4 digit number in the Natural LogSerial Number field.  |
Open Natural Log. Click on the 'Help'menu. Next click on 'About Natural Log', as shown in the image below. Refer to the image below and provide the 4 digit number in the Natural LogSerial Number field. |