### Related

##### elem

elem ([], x+y, [x, y]);

Calculate

##### elem

elem ([1], x^2, [x, y]);

Calculate

##### elem-expand

elem:2;

expand(elem ([3, a, b...

Calculate

##### elem-sum

elem(Px,k,N) := Px^(k...

f(Px,k,N) := sum(elem...

f(0.1,2,5);

Calculate

v1:x1+2*x2+3*x3;

v2:x2+2*x3+3*x1;

v3:x3+2*x1+3*x2;

Calculate

##### elem-tcontract

s:a^3+b^3+c^3;

t:tcontract(s,[a,b,c]);

e:elem([3],t,[a,b,c]);

Calculate

##### elem

elem ([2,a,b], x*y+x+...

elem ([2,a],x*y+x+y, ...

elem ([2],x*y+x+y,[x,...

Calculate

v1:x1+2*x2+3*x3;

v2:x2+2*x3+3*x1;

v3:x3+2*x1+3*x2;

Calculate

##### elem-ratsimp

elem ([], x*x + y*y, ...

ratsimp (%);

Calculate

##### elem-ratsimp

elem ([2],x*(1/x), [x]);

ratsimp (%);

Calculate

### elem

Run Example
```(%i1)elem ([3], 1/(x+y)^2 + 1/(y+z)^2 + 1/(z+x)^2, [x, y, z]);
resolvante
generale

NOTE: To compile the system do
define: warning: redefining the built-in function resolvante_produit_sym
define: warning: redefining the built-in function resolvante_unitaire
define: warning: redefining the built-in function resolvante_alternee1
define: warning: redefining the built-in function resolvante_klein
define: warning: redefining the built-in function resolvante_klein3
define: warning: redefining the built-in function resolvante_vierer
define: warning: redefining the built-in function resolvante_diedrale
define: warning: redefining the built-in function resolvante_bipartite
1                 1                 1
(%o1)         --------------- + --------------- + ---------------
2            2    2            2    2            2
z  + 2 y z + y    z  + 2 x z + x    y  + 2 x y + x
(%i2)  ratsimp (%);
(%o2)             (%i3) ```
Run Example
```elem ([2], x^2, [x, y]);
resolvante
generale

NOTE: To compile the system do
define: warning: redefining the built-in function resolvante_produit_sym
define: warning: redefining the built-in function resolvante_unitaire
define: warning: redefining the built-in function resolvante_alternee1
define: warning: redefining the built-in function resolvante_klein
define: warning: redefining the built-in function resolvante_klein3
define: warning: redefining the built-in function resolvante_vierer
define: warning: redefining the built-in function resolvante_diedrale
define: warning: redefining the built-in function resolvante_bipartite
2
(%o1)                             e1  - 2 e2
(%i2) ```
Run Example
```elem ([3], x*y*z, [x, y]);
resolvante
generale

NOTE: To compile the system do
define: warning: redefining the built-in function resolvante_produit_sym
define: warning: redefining the built-in function resolvante_unitaire
define: warning: redefining the built-in function resolvante_alternee1
define: warning: redefining the built-in function resolvante_klein
define: warning: redefining the built-in function resolvante_klein3
define: warning: redefining the built-in function resolvante_vierer
define: warning: redefining the built-in function resolvante_diedrale
define: warning: redefining the built-in function resolvante_bipartite
(%o1)                                e2 z
(%i2) ```

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