Origin Ver. and Service Release (Select Help-->About Origin): 8.6 Operating System: Win7
I have two columns (theta,ksi) and want to make a third column with ksi derivative. Calling ocmath_derivative in the following code causes Origin to crash...
It seems a bug in Origin 8.6. I have tried in the current version, 9.0 SR1, it works and no crash. So, this bug should be fixed. You can download a demo version of 9.0 from this page to have a try.