up previous next

3.9.5 Global Aliases

A global alias for a package is formed by using the command Alias during a CoCoA session. (Local aliases are formed with the same command, but are declared inside a package. They are for use only within the package.) The syntax for Alias is Alias binding, ...,binding; where a binding has the form

  identifier := $PackageName

The function Aliases prints a list of the global aliases.

Example

Aliases(); H = $help IO = $io GB = $gb HP = $hp HL = $hilop List = $list Mat = $mat Latex = $latex LaTeX = $latex Toric = $toric Coclib = $coclib TT = $abc ------------------------------- Alias My := $my_package, Old := $my_package/old_version; Aliases(); HP = $hp BinRepr = $binrepr SpPoly = $sppoly HL = $hilop H = $help My = $my_package Old = $my_package/old_version -------------------------------

Note: global aliases cannot be used in function definitions. This is to force independence of context. Inside a function, one must use the complete package name. For example, $gb.Step(M)M is a valid statement inside a function, but not GB.Step(M).