I am trying to develop a code for the use of dummy suffix notation
within maple to ultimately solve high order perturbation equations
from an initial energy identity. The differentiation only uses chain
rule but the vast amount of terms involved mean that this notation
would make the solving of thos problem much much easier!! does anyone
have any hints or ideas on how i would go about this? Many thanks.
Chris

en2...@bath.ac.uk writes:
I am trying to develop a code for the use of dummy suffix notation
within maple to ultimately solve high order perturbation equations
from an initial energy identity. The differentiation only uses chain
rule but the vast amount of terms involved mean that this notation
would make the solving of thos problem much much easier!! does anyone
have any hints or ideas on how i would go about this? Many thanks.
Chris

If you mean that you want e.g. diff(F(x,y,z),x) to be written as F_x,
see the PDEtools functions declare and diff_table.
--
Robert Israel isr...@math.MyUniversitysInitials.ca
Department of Mathematics http://www.math.ubc.ca/~israel
University of British Columbia Vancouver, BC, Canada