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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>I have an action from yesterday’s teleconference meeting of WG 4 to draft a definition of the term “limit” as used in many contexts within 29500 Part 1, §22.1 Math.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here is my proposed definition:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-left:36.0pt'><b>limit</b> – In a mathematical equation, an expression in reduced-size text in a high position (for which the term “upper limit” is used) or low position (for which the term “lower limit” is used) relative to either an n-ary operator or text on the baseline of the expression. See n-ary operator for examples of limits in both high and low positions relative to a summation sign operator.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If we add this definition in §15.1 Glossary of Shared Terms, I believe that my original suggested resolution of DR 17-0035 can be reinstated:<o:p></o:p></p><p style='margin-left:36.0pt'><b>n-ary operator</b> — A<s><span style='color:red'>n</span></s> <u><span style='color:#3366FF'>mathematical</span></u> operator<s><span style='color:red'> that involves n terms when expanded </span></s><u><span style='color:#3366FF'>, typically a single operator character, optionally accompanied by expressions of a lower limit, an upper limit, or both</span></u>. For instance, the following example uses the Unicode (ISO 10646) summation sign (U+2211) which has the official name “N-ARY SUMMATION”.<o:p></o:p></p><p style='margin-left:36.0pt'>[example expression here]<o:p></o:p></p><p class=MsoNormal>This will also avoid the need to revise use of the term “imit” in §22.1 to clarify its meaning.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Francis<o:p></o:p></p></div></body></html>