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<div id="version" align=right><b>slepc-3.22.2 2024-12-02</b></div>
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<H1>RGComputeBoundingBox</H1>
Determines the endpoints of a rectangle in the complex plane that contains the region.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcrg.h"
<A HREF="https://petsc.org/release/manualpages/Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../RG/RGComputeBoundingBox.html#RGComputeBoundingBox">RGComputeBoundingBox</A>(<A HREF="../RG/RG.html#RG">RG</A> rg,<A HREF="https://petsc.org/release/manualpages/Sys/PetscReal.html#PetscReal">PetscReal</A> *a,<A HREF="https://petsc.org/release/manualpages/Sys/PetscReal.html#PetscReal">PetscReal</A> *b,<A HREF="https://petsc.org/release/manualpages/Sys/PetscReal.html#PetscReal">PetscReal</A> *c,<A HREF="https://petsc.org/release/manualpages/Sys/PetscReal.html#PetscReal">PetscReal</A> *d)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#883300">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>rg </B></TD><TD> - the region context
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>a </B></TD><TD> - left endpoint of the bounding box in the real axis
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>b </B></TD><TD> - right endpoint of the bounding box in the real axis
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>c </B></TD><TD> - bottom endpoint of the bounding box in the imaginary axis
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>d </B></TD><TD> - top endpoint of the bounding box in the imaginary axis
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
The bounding box is defined as [a,b]x[c,d]. In regions that are not bounded (e.g. an
open interval) or with the complement flag set, it makes no sense to compute a bounding
box, so the return values are infinite.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../RG/RGComputeContour.html#RGComputeContour">RGComputeContour</A>()
<BR><P><B></B><H3><FONT COLOR="#883300">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#883300">Location</FONT></H3>
</B><A HREF="../../../src/sys/classes/rg/interface/rgbasic.c.html#RGComputeBoundingBox">src/sys/classes/rg/interface/rgbasic.c</A>
<BR><BR><A HREF="./index.html">Index of all RG routines</A>
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