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<title>BQN: Superscript Equals Sign (⁼)</title>
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<div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
<h1 id="superscript-equals-sign-"><a class="header" href="#superscript-equals-sign-">Superscript Equals Sign (<code><span class='Modifier'>⁼</span></code>)</a></h1>
<h2 id="𝔽-𝕩-𝕨-𝔽-𝕩-undo"><a class="header" href="#𝔽-𝕩-𝕨-𝔽-𝕩-undo"><code><span class='Function'>𝔽</span><span class='Modifier'>⁼</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>⁼</span> <span class='Value'>𝕩</span></code>: Undo</a></h2>
<p>Invert the function <code><span class='Function'>𝔽</span></code>, or use its defined inverse. Not all functions have inverses.</p>
<a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=MSAtIDIKCjEgLeKBvCAyCgriiJogMTYKCuKImuKBvCA0Cgrii4YgMQoK4ouG4oG8IDIuNzE4MjgxODI4NDU5MDQ1">↗️</a><pre> <span class='Number'>1</span> <span class='Function'>-</span> <span class='Number'>2</span>
¯1
<span class='Number'>1</span> <span class='Function'>-</span><span class='Modifier'>⁼</span> <span class='Number'>2</span>
¯1
<span class='Function'>√</span> <span class='Number'>16</span>
4
<span class='Function'>√</span><span class='Modifier'>⁼</span> <span class='Number'>4</span>
16
<span class='Function'>⋆</span> <span class='Number'>1</span>
2.718281828459045
<span class='Function'>⋆</span><span class='Modifier'>⁼</span> <span class='Number'>2.718281828459045</span>
1
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