The Diffn.exe Application is a x Expression Differentiator suitable for the IBM PC Windows 98/ME/NT/2000/XP environments.

After having downloaded and unzipped the Diffn.exe Application, drag the application to a suitable directory on your hard disc. Double click on the Diffn.exe file icon to produce a proprietory disclaimer, followed by the main panel, on your screen.

Type a (Suitable) expression in x in the upper writable slot, then click on the 'Calculate' button. Diffn.exe then returns the differential of the expression (in x) in the 'dy/dx' slot.

Please read the 'Help.txt' file present in the zipped file for more information on the types of Expressions that Diffn.exe can recognise.

Also read the 'ReadMe1st.txt' file present in the zipped file for more information on the known 'bugs' in Diffn.exe.

Additional 'Help' and 'Description' buttons are available on the displayed panel, giving out more information.

Versions of Diffn.exe suitable for Windows ME and windows 95, are additionally supplied in the zipped file.

This document was generated on 12th July 2009 for this IBM PC Windows 98/ME/NT/2000/XP Software Application written and distributed by Martin Carradus