Block
 Usage
Notes
 Further Examples
Here is an expression involving s.
In[1]:=
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This evaluates the previous expression, using a local value for s.
In[2]:=
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Out[2]=
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There is no global value for s.
In[3]:=
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Out[3]=
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Attempting to evaluate this sum directly does not work.
In[4]:=
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Out[4]=
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This works.
In[5]:=
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In[6]:=
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Out[6]=
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In[7]:=
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