User Portlet User Portlet

kindly go through excel file. I want to plot this curve with 2 derivatives. one before cooling and one after cooling. I want to use exponential as well as log function for this. Kindly let me know. I tried interpolation but I am not expert so did not...
sorry i do not understand this time stuff. I should read about this. One more question how to find here curve derivatives?
I have seen the attached file, my output is almost same. I am just thinking is such results can be true. Because they are looking very strange. This was one reason so I still think its not working.
Hello how to mark any spontaneous point in an image and extract all coordinates in a .dat file. have anyone good example for landmark based registration.