
<A NAME=semicolon>

<TITLE>semicolon</TITLE></A>
<b><a href=r37_idx.html>INDEX</a></b><p><p>



<B>;</B> _ _ _ <B>SEMICOLON</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>command</B><P>
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The semicolon is a statement delimiter, indicating results are to be printed 
when used in interactive mode. 
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 <P> <H3> 
examples: </H3>
<P><PRE><TT>
(x+1)**2; 

   2
  X  + 2*X + 1 


df(x**2 + 1,x); 

  2*X

</TT></PRE><P>Entering a <em>Return</em> without a semicolon or dollar sign resu
lts in a 
prompt on the following line. A semicolon or dollar sign can be 
added at this point to execute the statement. In interactive mode, a 
statement that is ended with a semicolon and <em>Return</em> has its results 
printed on the screen. 
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<P>
Inside a group statement <em>&lt;&lt;</em>...<em>&gt;&gt;</em> 
or a <em>begin</em>...<em>end</em> block, a 
semicolon or dollar sign separates individual REDUCE statements. Since 
results are not printed from a block without a specific <em>return</em> 
statement, there is no difference between using the semicolon or dollar 
sign. In a group statement, the last value produced is the value 
returned by the group statement. Thus, if a semicolon or dollar sign is 
placed between the last statement and the ending brackets, the group 
statement returns the value 0 or nil, rather than the value of the 
last statement. 
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