Derivator Cost: $9 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions Derivator: Calculates the derivative of a function, step by step. Permits print out the results. You can save the results on a text file (.txt), and you can edit it by Word. The Shareware version only operates with (+,-,*,/,^).