<math xmlns="http://www.w3.org/1998/Math/MathML" id="p1.1.m1.1" class="ltx_Math" alttext="{\displaystyle{\displaystyle<\pi}}" display="inline"> < π <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <apply id="p1.1.m1.1.3.cmml" xref="p1.1.m1.1.3"> <lt id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1"/> <csymbol cd="latexml" id="p1.1.m1.1.3.1.cmml" xref="p1.1.m1.1.3.1">absent</csymbol> <ci id="p1.1.m1.1.2.cmml" xref="p1.1.m1.1.2">𝜋</ci> </apply> </annotation-xml> {\displaystyle{\displaystyle<\pi}}
∼ <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <csymbol cd="dlmf" id="p1.1.m1.1.1.1.cmml" xref="p1.1.m1.1.1.2">asymptotic-expansion</csymbol> </annotation-xml> {\displaystyle{\displaystyle\sim}}
π <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <pi id="p1.1.m1.1.1.1.cmml" xref="p1.1.m1.1.1.2"/> </annotation-xml> {\displaystyle{\displaystyle\pi}}
! <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <factorial id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1"/> </annotation-xml> {\displaystyle{\displaystyle!}}
ph <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <csymbol cd="dlmf" id="p1.1.m1.1.1.1.cmml" xref="p1.1.m1.1.1.3">phase</csymbol> </annotation-xml> {\displaystyle{\displaystyle\operatorname{ph}}}
ν <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝜈</ci> </annotation-xml> {\displaystyle{\displaystyle\nu}}
k <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝑘</ci> </annotation-xml> {\displaystyle{\displaystyle k}}
δ <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝛿</ci> </annotation-xml> {\displaystyle{\displaystyle\delta}}
λ <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝜆</ci> </annotation-xml> {\displaystyle{\displaystyle\lambda}}