viewing the symbols defined so far

After using Macaulay 2 for a while, you may have stored data in several variables. The system also stores output values for you in output variables. You may wish to free the memory space occupied by that data, or you may simply wish to remind yourself where you stored a previously computed value.

We may use the command listUserSymbols to obtain a list of the user's symbols encountered so far.

i1 : ff = 20:4; hh = true; kk



o3 = kk



o3 : Symbol

i4 : listUserSymbols



o4 = ff: Sequence

     o1: Sequence

     hh: Boolean

     o2: Boolean

     kk: Symbol

     o3: Symbol



o4 : Net

The symbols are listed in chronological order, and the type of value stored under it is displayed.

We can clear the output symbols with clearOutput.

i5 : clearOutput

i6 : listUserSymbols



o6 = ff: Sequence

     o1: Sequence

     hh: Boolean

     o2: Boolean

     kk: Symbol



o6 : Net

We can clear all the symbols with clearAll.

i7 : clearAll

i8 : listUserSymbols



o8 = 



o8 : Net