>This module provides the Stress class used to create, manipulate, and</span>
<span class="sd">calculate relevant properties of the stress tensor.</span>
<span class="sd">&quot;&quot;&quot;</span>

<span class="kn">from</span> <span class="nn">pymatgen.core.tensors</span> <span class="kn">import</span> <span class="n">SquareTensor</span>
<span class="kn">import</span> <span class="nn">math</span>
<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span