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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
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<A NAME="PetscDTGaussJacobiQuadrature"><H1>PetscDTGaussJacobiQuadrature</H1></A>
quadrature for the interval [a, b] with the weight function $(x-a)^\alpha (x-b)^\beta$.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdt.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../DT/PetscDTGaussJacobiQuadrature.html#PetscDTGaussJacobiQuadrature">PetscDTGaussJacobiQuadrature</A>(<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> npoints,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> a, <A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> b, <A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> alpha, <A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> beta, <A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> x[], <A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> w[])
</PRE>
Not collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>npoints </B></TD><TD>- the number of points in the quadrature rule
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>a </B></TD><TD>- the left endpoint of the interval
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>b </B></TD><TD>- the right endpoint of the interval
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>alpha </B></TD><TD>- the left exponent
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>beta </B></TD><TD>- the right exponent
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>x </B></TD><TD>- array of length npoints, the locations of the quadrature points
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>w </B></TD><TD>- array of length npoints, the weights of the quadrature points
</TD></TR></TABLE>
<P>
<P>
Note: this quadrature rule is exact for polynomials up to degree 2*npoints - 1.
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/dm/dt/interface/dt.c.html#PetscDTGaussJacobiQuadrature">src/dm/dt/interface/dt.c</A>
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