 equivalence definition for Coord classes. In other words, checks whether the individual Coord elements of the two grid (Gr object) arguments are equivalent up to a permutation. A stricter version of this test is strict_equiv, which allows no permutation.</span>
<span class="sd"> </span>
<span class="sd">    Args:</span>
<span class="sd">      other: (Membered) the object to compare with</span>

<span class="sd">    Returns:</span>
<span class="sd">      True if all (self) members are equivalent to a member