Hi George, Since the output of the VI is already in double precision, the VI should already contain the correct number of digits of precision. It's possible, however, that the numeric indicator is not set to be displayed with all the digits. Right-click on the numeric indicator that is being used to display the output of the Bessel VI and select Properties. Then, choose the Format and Precision tab. In this panel, you can now increase the number of digits of precision to be displayed. Hopefully by changing this property you are able to view the entire output of the Bessel function to the proper accuracy you desire.
Best of luck with your application! Kileen C. Applications Engineer National Instruments
