respected sir/ma'am
whenever I use Athena / Hephaestus on the time of plotting derivatives ..its hangs and after some time it shows per interpreter is not responding,,, so it is not working properly, even I am puzzled.
please give me quick reply facing such problem ..even reinstalled it.


Regards

Mrs Mona Gupta
Assistant Professor
Department of Physics
Govt PG College Kotdwar
H N B Garhwal University
Uttarakhand (India)