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Constant
Constant
is an attribute which indicates zero derivative of a symbol with respect to all parameters.
MORE INFORMATION
Constant
is used by
Dt
.
Functions
f
[
...
]
are taken to have zero total derivative if
f
has attribute
Constant
.
Mathematical constants such as
Pi
have attribute
Constant
.
EXAMPLES
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Basic Examples
(2)
is a mathematical constant representing a number:
In[1]:=
Out[1]=
is not explicitly a number:
In[2]:=
Out[2]=
is numeric and evaluates to a number with
N
:
In[3]:=
Out[3]=
In[4]:=
Out[4]=
Define
f
to be a constant function for total derivatives computed with
Dt
:
In[1]:=
In[2]:=
Out[2]=
Scope
(2)
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Constants
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New in 1
© 2008 Wolfram Research, Inc.
EXAMPLES
Basic Examples 
Scope