Runtime evaluation: Difference between revisions

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 <br> 1) run-time evaluation of an internal expression, and a
 <br> 2) run-time evaluation of a user-prompted expression.
+<lang rexx>/*REXX program to illustrate ability to execute code written at runtime.*/
-<lang rexx>
-/*REXX program to illustrate ability to execute code written at runtime.*/
 numeric digits 10000000
 bee=51
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 say 'length of result='length(?)
 say ' left 50 bytes of result='left(?,50)'...'
-say 'right 50 bytes of result=...'right(?,50)
+say 'right 50 bytes of result=...'right(?,50)</lang>
+'''output''' with the input of: <tt> 2**44497 - 1 </tt>
-</lang>
-Output [with the user entering:  <tt>  2**44497 - 1  </tt> ]
 <br>which happens to be the 27th Mersenne prime.
 <pre style="height:35ex;overflow:scroll">