b/7fd743ac09e857fe0ebd333bd7a56cd0df3876c3//spork/math.janet#L1381">source</a></span> <pre class="binding-text">(sign x)

Sign function.</pre></div><hr><div class="binding"><span id="math/size" class="binding-sym">math/size</span> <span class="binding-type">function</span> <span class="binding-type"><a href="https://github.com/janet-lang/spork/blob/7fd743ac09e857fe0ebd333bd7a56cd0df3876c3//spork/math.janet#L1017">source</a></span> <pre class="binding-text">(size m)

Returns tuple with the matrix `m` size [r