/swap</a> <a href="#math/t-test">math/t-test</a> <a href="#math/t-test-2">math/t-test-2</a> <a href="#math/trans">math/trans</a> <a href="#math/variance">math/variance</a> <a href="#math/z-score">math/z-score</a> <a href="#math/zero">math/zero</a> </p><hr><div class="binding"><span id="math/add" class="binding-sym">math/add</span> <span class="binding-type">function</span> <span class="binding-type"><a href="https://github.com/janet-lang/spork/blob/87a2aae508a86d45363ae4cc747141847e463ee4//spork/math.janet#