====== PowerExpand ======
----
====Description====

  * ''PowerExpand'' expands all powers of products and powers. 

  * ''PowerExpand[var1, var2, ...]''   expands only with respect to the variables ''var1'', ''var2'', ...


====Examples====
----
Expand a power of a product:
<sxh groovy; gutter: false>
def t = '(a*b*c)**d'.t
println PowerExpand >> t
</sxh>
<sxh plain; gutter: false>
   > a**d*b**d*c**d
</sxh>
----
Expand with respect to ''a'':
<sxh groovy; gutter: false>
def t = '(a*b*c)**d'.t
println PowerExpand['a'] >> t
</sxh>
<sxh plain; gutter: false>
   > a**d*(b*c)**d
</sxh>
----
Expand a square root:
<sxh groovy; gutter: false>
def t = '(a*b)**(1/2)'.t
println PowerExpand >> t
</sxh>
<sxh plain; gutter: false>
   > a**(1/2) * b**(1/2)
</sxh>
----

====See also====
  * Related guides: [[documentation:guide:applying_and_manipulating_transformations]], [[documentation:guide:list_of_transformations]]
  * Related transformations: [[documentation:ref:powerunfold]]
  * JavaDocs: [[http://api.redberry.cc/redberry/1.1.9/java-api/cc/redberry/core/transformations/powerexpand/PowerExpandTransformation.html|PowerExpandTransformation]]
  * Source code: [[https://bitbucket.org/redberry/redberry/src/tip/core/src/main/java/cc/redberry/core/transformations/powerexpand/PowerExpandTransformation.java|PowerExpandTransformation.java]]