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listdummyvars

? listdummyvars;

Calculate

listdummyvars

? listdummyvars;

Calculate

listdummyvars

Run Example
(%i1)listdummyvars: false;
(%o1)                                false
(%i2) listofvars (defint(z^2, z, 0, r));
(%o2)                                 [r]
(%i3) defint(z^2, z, 0, r);
                                       3
                                      r
(%o3)                                 --
                                      3
(%i4) 
Run Example
listdummyvars: false;
(%o1)                                false
(%i2) listofvars (sum(f(i), i, 0, n));
(%o2)                                 [n]
(%i3) 
Run Example
listdummyvars: true;
(%o1)                                true
(%i2)  listofvars ('sum(f(i), i, 0, n));
(%o2)                               [i, n]
(%i3)  listdummyvars: false;
(%o3)                                false
(%i4)  listofvars ('sum(f(i), i, 0, n));
(%o4)                                 [n]
(%i5) 

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Help for Listdummyvars