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30 lines
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<TITLE>CLHS: Section 2.3.2.3</TITLE>
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<H1><A REV=MADE HREF="http://www.lispworks.com/"><IMG WIDTH=80 HEIGHT=65 ALT="[LISPWORKS]" SRC="../Graphics/LWSmall.gif" ALIGN=Bottom></A><A REL=TOP HREF="../Front/index.htm"><IMG WIDTH=237 HEIGHT=65 ALT="[Common Lisp HyperSpec (TM)]" SRC="../Graphics/CLHS_Sm.gif" ALIGN=Bottom></A> <A REL=PREV HREF="02_cbb.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="02_cb.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="02_cc.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<H2>
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2.3.2.3 Syntax of a Complex</H2> <P>
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A <A REL=DEFINITION HREF="26_glo_c.htm#complex"><I>complex</I></A> has a Cartesian structure, with a real part and an imaginary part each of which is a <A REL=DEFINITION HREF="t_real.htm#real"><I>real</I></A>. The parts of a <A REL=DEFINITION HREF="26_glo_c.htm#complex"><I>complex</I></A> are not necessarily <A REL=DEFINITION HREF="26_glo_f.htm#float"><I>floats</I></A> but both parts must be of the same <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A>: either both are <A REL=DEFINITION HREF="26_glo_r.htm#rational"><I>rationals</I></A>, or both are of the same <A REL=DEFINITION HREF="26_glo_f.htm#float"><I>float</I></A> <A REL=DEFINITION HREF="26_glo_s.htm#subtype"><I>subtype</I></A>. When constructing a <A REL=DEFINITION HREF="26_glo_c.htm#complex"><I>complex</I></A>, if the specified parts are not the same <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A>, the parts are converted to be the same <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> internally (i.e., the <A REL=DEFINITION HREF="26_glo_r.htm#rational"><I>rational</I></A> part is converted to a <A REL=DEFINITION HREF="26_glo_f.htm#float"><I>float</I></A>). An <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A> of type <TT>(complex rational)</TT> is converted internally and represented thereafter as a <A REL=DEFINITION HREF="26_glo_r.htm#rational"><I>rational</I></A> if its imaginary part is an <A REL=DEFINITION HREF="26_glo_i.htm#integer"><I>integer</I></A> whose value is 0. <P>
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For further information, see <A REL=CHILD HREF="02_dhk.htm">Section 2.4.8.11 (Sharpsign C)</A> and <A REL=CHILD HREF="22_acad.htm">Section 22.1.3.1.4 (Printing Complexes)</A>. <P>
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<P><HR>The following <A REL=META HREF="../Front/X3J13Iss.htm">X3J13 cleanup issue</A>, <I>not part of the specification</I>, applies to this section:<P><UL><LI> <A REL=CHILD HREF="../Issues/iss290.htm">REAL-NUMBER-TYPE:X3J13-MAR-89</A><P></UL><HR>
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