This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)

Trig

Trig
is an option for various polynomial manipulation functions that specifies whether trigonometric functions should be treated like polynomial elements.
  • With Trig->True, trigonometric functions will be treated like polynomial elements by using their algebraic relations.
By default, Simplify uses trigonometric identities:
This simplifies the expression without using trigonometric identities:
By default, Expand expands out products and positive integer powers:
This also expands out trigonometric functions:
By default, Simplify uses trigonometric identities:
In[1]:=
Click for copyable input
Out[1]=
In[2]:=
Click for copyable input
Out[2]=
This simplifies the expression without using trigonometric identities:
In[3]:=
Click for copyable input
Out[3]=
 
By default, Expand expands out products and positive integer powers:
In[1]:=
Click for copyable input
Out[1]=
This also expands out trigonometric functions:
In[2]:=
Click for copyable input
Out[2]=
New in 2