# Vector Operations (Vec)

  PETSc vectors (`Vec`) are used to store the field variables
in PDE-based (or other) simulations. Users guide chapter: [](ch_vectors)

<A HREF="../../../../../../src/vec/vec/tutorials/index.html">Examples</A> <BR>


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Source files
<p><a href="sfpack.c.html">sfpack.c</a><br>
<a href="sfbasic.c.html">sfbasic.c</a><br>
<a href="sfbasic.h.html">sfbasic.h</a><br>
<a href="sfmpi.c.html">sfmpi.c</a><br>
<a href="sfpack.h.html">sfpack.h</a><br>

<p>
Directories
<p><a href="cupm/index.html">cupm</a><br>
<a href="alltoall/index.html">alltoall</a><br>
<a href="gather/index.html">gather</a><br>
<a href="allgatherv/index.html">allgatherv</a><br>
<a href="allgather/index.html">allgather</a><br>
<a href="nvshmem/index.html">nvshmem</a><br>
<a href="kokkos/index.html">kokkos</a><br>
<a href="neighbor/index.html">neighbor</a><br>
<a href="gatherv/index.html">gatherv</a><br>