The packparams function is used to collect the parameters in the list X into one parameter, an array named A, in the Maple procedure f.

The packargs function is a synonym for the packparams function.

The packlocals function is used to collect the local variables in the list X into one local variable, an array named A, in the Maple procedure f.

The swapargs function is used to swap the formal parameter at position m with the formal parameter at position n in a Maple procedure.

The renamevar function is used to rename a (parameter, local, or global) variable x with the new name y in a Maple procedure.

The command with(codegen,packargs) allows the use of the abbreviated form of this command.

The command with(codegen,packlocals) allows the use of the abbreviated form of this command.

The command with(codegen,swapargs) allows the use of the abbreviated form of this command.

The command with(codegen,renamevar) allows the use of the abbreviated form of this command.

f := proc(x,y,z) local r,s,t; r := x*z; s := y^2; t := r*s; t^2 end proc:

Error, (in `codegen/renamevar`) parameter and local `x` have the same name