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Times

, , or
represents a product of terms.
  • The character is entered as Esc * Esc or \[Times]. It is not the same as \[Cross].
  • The default value for arguments of Times, as used in patterns, is .
  • 0x evaluates to , and 0.0x evaluates to .
  • Unlike other functions, Times applies built-in rules before user-defined ones. As a result, it is not possible to make definitions such as .
Enter Times with spaces; × is added automatically between numbers:
Alternative form:
Times threads element-wise over lists:
Explicit FullForm:
Enter Times with spaces; × is added automatically between numbers:
In[1]:=
Click for copyable input
Out[1]=
Alternative form:
In[2]:=
Click for copyable input
Out[2]=
 
Times threads element-wise over lists:
In[1]:=
Click for copyable input
Out[1]=
In[2]:=
Click for copyable input
Out[2]=
 
Explicit FullForm:
In[1]:=
Click for copyable input
Out[1]=
Times threads element-wise:
Pattern matching works with Times:
Use Expand to expand out products:
Use Dot for matrix or vector multiplication:
Use Product for products of indexed elements:
As well as for closed forms of products:
Use NonCommutativeMultiply for non commuting products:
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