>> Do you have some code to use or do you have a sample code to implement cubic root with HLBL. << I can't believe that I can't find any kind of exponential operator in my manuals ... surely HLBL supports X ^ Y !!! I see basic 4-function calculator operators, modulus, logic and relational operators ... but no exponential operator. Surely I'm overlooking it ... right? I see the CALC block can do logarithms and exponentials. (Obviously, I've never had a need to do this.) Brad Wilson ExxonMobil Chemical Co Edison Synthetics Plant 732-321-6115 732-321-6177 fax Brad.S.Wilson@xxxxxxxxxxxxxx _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave