z <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝑧</ci> </annotation-xml> {\displaystyle{\displaystyle z}}
I <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝐼</ci> </annotation-xml> {\displaystyle{\displaystyle I}}
J <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝐽</ci> </annotation-xml> {\displaystyle{\displaystyle J}}
W ⁢ ( z ) <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <apply id="p1.1.m1.1.5.cmml" xref="p1.1.m1.1.5"> <times id="p1.1.m1.1.5.1.cmml" xref="p1.1.m1.1.5.1"/> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝑊</ci> <ci id="p1.1.m1.1.3.cmml" xref="p1.1.m1.1.3">𝑧</ci> </apply> </annotation-xml> {\displaystyle{\displaystyle W(z)}}