### Related

##### ordergreat

pol:2*y*z^2+x*z^3+2*x...

ordergreat(y,z,x);

Calculate

##### ordergreat

p:2*y*z^2+x*z^3+2*x*z^4;

ordergreat(y,z,x);

p:2*y*z^2+x*z^3+2*x*z^4;

Calculate

##### ordergreat

p:2*y*z^2+x*z^3+2*x*z^4;

ordergreat(y,z,x);

p:2*y*z^2+x*z^3+2*x*z^4;

Calculate

unorder();

b*x + a^2;

ordergreat (a);

Calculate

##### ordergreat

p:2*y*z^2+x*z^3+2*x*z^4;

ordergreat(x,y,z);

p:2*y*z^2+x*z^3+2*x*z^4;

Calculate

##### ordergreat-orderless-unorder

p:2*y*z^2+x*z^3+2*x*z^4;

orderless(x,y,z);

p:2*y*z^2+x*z^3+2*x*z^4;

Calculate

##### ordergreat

ordergreat(y,z,x);

pol:2*y*z^2+x*z^3+2*x...

Calculate

##### ordergreat

p:2*y*z^2+x*z^3+2*x*z^4;

ordergreat(x,z,y);

p:2*y*z^2+x*z^3+2*x*z^4;

Calculate

##### ordergreat

pol:2*y*z^2+x*z^3+2*x...

ordergreat(y,z,x);

Calculate

##### ordergreat

ordergreat(y,z,x);

pol:2*y*z^2+x*z^3+2*x...

Calculate

### ordergreat

Run Example
```(%i1)p:2*y*z^2+x*z^3+2*x*z^4;
4      3        2
(%o1)                       2 x z  + x z  + 2 y z
(%i2) collectterms(p,x);
4    3         2
(%o2)                       x (2 z  + z ) + 2 y z
(%i3) ordergreat(x,y,z);
(%o3)                                done
(%i4) p:2*y*z^2+x*z^3+2*x*z^4;
4      3        2
(%o4)                       2 z  x + z  x + 2 z  y
(%i5) unorder();
(%o5)                              [z, y, x]
(%i6) ordergreat(z,y,x);
(%o6)                                done
(%i7) p;
4              3                2
(%o7)             2 _101z  _103x + _101z  _103x + 2 _101z  y
(%i8) unorder();
(%o8)                              [x, y, z]
(%i9) ordergreat(z,x,y);
(%o9)                                done
(%i10) p;
4              3                2
(%o10)          2 _101z  _103x + _101z  _103x + 2 _101z  _102y
(%i11) unorder();
(%o11)                             [y, x, z]
(%i12) ```
Run Example
```pol:2*y*z^2+x*z^3+2*x*z^4;
4      3        2
(%o1)                       2 x z  + x z  + 2 y z
(%i2) ordergreat(y,z,x);
(%o2)                                done
(%i3) ```
Run Example
```ordergreat(x,y,z);
(%o1)                                done
(%i2) depends(Phi,[x,y,z]);
(%o2)                           [Phi(x, y, z)]
(%i3) R(x,y,z):=sqrt(x^2+y^2+z^2);
2    2    2
(%o3)                  R(x, y, z) := sqrt(x  + y  + z )
(%o4)           Grad(f) := [diff(f, x), diff(f, y), diff(f, z)]
(%i5) Div(v):=diff(v[1],x)+diff(v[2],y)+diff(v[3],z);
(%o5)          Div(v) := diff(v , x) + diff(v , y) + diff(v , z)
1             2             3
(%i6) Rot(v):=[diff(v[3],y)-diff(v[2],z),diff(v[1],z)-diff(v[3],x),diff(v[2],x)-diff(v[1],y)];
(%o6) Rot(v) := [diff(v , y) - diff(v , z), diff(v , z) - diff(v , x),
3             2            1             3
diff(v , x) - diff(v , y)]
2             1
(%i7) Phi:1/R(x,y,z);
1
(%o7)                         ------------------
2    2    2
sqrt(x  + y  + z )
x                    y                    z
(%o8)   [- -----------------, - -----------------, - -----------------]
2    2    2 3/2      2    2    2 3/2      2    2    2 3/2
(x  + y  + z )       (x  + y  + z )       (x  + y  + z )
2                   2
3                 3 x                 3 y
(%o9) - ----------------- + ----------------- + -----------------
2    2    2 3/2     2    2    2 5/2     2    2    2 5/2
(x  + y  + z )      (x  + y  + z )      (x  + y  + z )
2
3 z
+ -----------------
2    2    2 5/2
(x  + y  + z )
(%o10)                             [0, 0, 0]
(%i11) Phi:1/R(x,y,z-l)-1/R(x,y,z+l);
1                          1
(%o11)        ------------------------ - ------------------------
2    2          2          2    2          2
sqrt(x  + y  + (z - l) )   sqrt(x  + y  + (z + l) )
x                         x
(%o12) [----------------------- - -----------------------,
2    2          2 3/2     2    2          2 3/2
(x  + y  + (z + l) )      (x  + y  + (z - l) )
y                         y
----------------------- - -----------------------,
2    2          2 3/2     2    2          2 3/2
(x  + y  + (z + l) )      (x  + y  + (z - l) )
z + l                     z - l
----------------------- - -----------------------]
2    2          2 3/2     2    2          2 3/2
(x  + y  + (z + l) )      (x  + y  + (z - l) )