Heronian triangles: Difference between revisions

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m →‎{{header|REXX}}: put statements on same line instead of splitting them for perusability.
m →‎{{header|REXX}}: added another programming note in the REXX section header.
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Note that the   '''iSqrt'''   subroutine doesn't use floating point.
Note that the   '''iSqrt'''   subroutine doesn't use floating point.

The REXX statement (line 22)     ''if pos(.,_)\==0''     isn't normally used for a general-purpose check if a number is an integer   (or not),
<br>this version was used because it's faster then the usual statement: &nbsp; &nbsp; ''if \datatype(_,'Whole')'' &nbsp; &nbsp; and because the number is well-formed.


This REXX program doesn't need to explicitly sort the triangles.
This REXX program doesn't need to explicitly sort the triangles.