Derivative in Ptolemy?

Hello Ptolemy experts, How do I calculate a derivative in Ptolemy? I can't seem to find an actor for it (just the Integrator actor). I checked the archives but didn't see an answer for this - I apologize if I missed it. Thanks, Beth -- Elizabeth Latronico, Ph.D. Robert Bosch Corporation

Re: Derivative in Ptolemy?

At 10:19 AM 5/9/2006, Elizabeth Latronico (RTC) wrote: Hello Ptolemy experts, How do I calculate a derivative in Ptolemy? I can't seem to find an actor for it (just the Integrator actor). I checked the archives but didn't see an answer for this - I apologize if I missed it. Thanks, Beth