Talk:Greatest common divisor: Difference between revisions

→‎errors in programs: added sigline to previous statements, added comments about gcd(0,0). -- ~~~~
m (→‎errors in programs: removed comment of abs(0)=0; -- ~~~~)
(→‎errors in programs: added sigline to previous statements, added comments about gcd(0,0). -- ~~~~)
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A few programs would attempt to divide by zero if the 2nd argument is 0 (zero).
<br> In that special case, the absolute value of the first argument should be returned. -- [[User:Gerard Schildberger|Gerard Schildberger]] 15:39, 17 August 2012 (UTC)
 
::unless it is 0 --[[User:Walterpachl|Walterpachl]] 12:40, 17 August 2012 (UTC)
 
::: The special case of '''gcd(0,0)''' is usually defined to be '''0''', but some authors consider it to be '''undefined'''. When implementing the REXX version 1 example, the first definition (0) was chosen. So, for that case, '''|0| = 0'''. -- [[User:Gerard Schildberger|Gerard Schildberger]] 15:39, 17 August 2012 (UTC)
<br><br>A number of examples don't show the results if either argument is negative.
 
<br><br>A number of examples don't show the results if either argument is negative. -- [[User:Gerard Schildberger|Gerard Schildberger]] 15:39, 17 August 2012 (UTC)
 
== REXX Version 1 ==