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<div id="version" align=right><b>slepc-3.22.2 2024-12-02</b></div>
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<H1>SlepcAbsEigenvalue</H1>
Returns the absolute value of a complex number given its real and imaginary parts.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
<A HREF="https://petsc.org/release/manualpages/Sys/PetscReal.html#PetscReal">PetscReal</A> <A HREF="../sys/SlepcAbsEigenvalue.html#SlepcAbsEigenvalue">SlepcAbsEigenvalue</A>(<A HREF="https://petsc.org/release/manualpages/Sys/PetscScalar.html#PetscScalar">PetscScalar</A> x,<A HREF="https://petsc.org/release/manualpages/Sys/PetscScalar.html#PetscScalar">PetscScalar</A> y)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#883300">Input 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> - the real part of the complex number
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>y </B></TD><TD> - the imaginary part of the complex number
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
This function computes sqrt(x**2+y**2), taking care not to cause unnecessary
overflow. It is based on LAPACK's DLAPY2.
<P>
In complex scalars, only the first argument is used.
<P>
This function is not available from Fortran.
<P>
<P><B></B><H3><FONT COLOR="#883300">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#883300">Location</FONT></H3>
</B><A HREF="../../../include/slepcmath.h.html#SlepcAbsEigenvalue">include/slepcmath.h</A>
<P><H3><FONT COLOR="#883300">Examples</FONT></H3>
<A HREF="../../../src/eps/tutorials/ex18.c.html">src/eps/tutorials/ex18.c</A><BR>
<A HREF="../../../src/eps/tutorials/ex41.c.html">src/eps/tutorials/ex41.c</A><BR>
<A HREF="../../../src/pep/tutorials/ex40.c.html">src/pep/tutorials/ex40.c</A><BR>
<A HREF="../../../src/pep/tutorials/nlevp/pdde_stability.c.html">src/pep/tutorials/nlevp/pdde_stability.c</A><BR>
<A HREF="../../../src/svd/tutorials/cnetwork/embedgsvd.c.html">src/svd/tutorials/cnetwork/embedgsvd.c</A><BR>
<BR><BR><A HREF="./index.html">Index of all sys routines</A>
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