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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `FloatConst` trait in crate `num`."><meta name="keywords" content="rust, rustlang, rust-lang, FloatConst"><title>num::traits::float::FloatConst - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="shortcut icon" href="../../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../../num/index.html'><div class='logo-container'><img src='../../../rust-logo.png' alt='logo'></div></a><p class='location'>Trait FloatConst</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.E">E</a><a href="#tymethod.FRAC_1_PI">FRAC_1_PI</a><a href="#tymethod.FRAC_1_SQRT_2">FRAC_1_SQRT_2</a><a href="#tymethod.FRAC_2_PI">FRAC_2_PI</a><a href="#tymethod.FRAC_2_SQRT_PI">FRAC_2_SQRT_PI</a><a href="#tymethod.FRAC_PI_2">FRAC_PI_2</a><a href="#tymethod.FRAC_PI_3">FRAC_PI_3</a><a href="#tymethod.FRAC_PI_4">FRAC_PI_4</a><a href="#tymethod.FRAC_PI_6">FRAC_PI_6</a><a href="#tymethod.FRAC_PI_8">FRAC_PI_8</a><a href="#tymethod.LN_10">LN_10</a><a href="#tymethod.LN_2">LN_2</a><a href="#tymethod.LOG10_E">LOG10_E</a><a href="#tymethod.LOG2_E">LOG2_E</a><a href="#tymethod.PI">PI</a><a href="#tymethod.SQRT_2">SQRT_2</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-FloatConst-for-f32">f32</a><a href="#impl-FloatConst-for-f64">f64</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../../index.html'>num</a>::<wbr><a href='../index.html'>traits</a>::<wbr><a href='index.html'>float</a></p><script>window.sidebarCurrent = {name: 'FloatConst', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../../src/num_traits/float.rs.html#1919-1921' title='goto source code'>[src]</a></span><span class='in-band'>Trait <a href='../../index.html'>num</a>::<wbr><a href='../index.html'>traits</a>::<wbr><a href='index.html'>float</a>::<wbr><a class="trait" href=''>FloatConst</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust trait'>pub trait FloatConst {
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fn <a href='#tymethod.E' class='fnname'>E</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_1_PI' class='fnname'>FRAC_1_PI</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_1_SQRT_2' class='fnname'>FRAC_1_SQRT_2</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_2_PI' class='fnname'>FRAC_2_PI</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_2_SQRT_PI' class='fnname'>FRAC_2_SQRT_PI</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_PI_2' class='fnname'>FRAC_PI_2</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_PI_3' class='fnname'>FRAC_PI_3</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_PI_4' class='fnname'>FRAC_PI_4</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_PI_6' class='fnname'>FRAC_PI_6</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.FRAC_PI_8' class='fnname'>FRAC_PI_8</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.LN_10' class='fnname'>LN_10</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.LN_2' class='fnname'>LN_2</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.LOG10_E' class='fnname'>LOG10_E</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.LOG2_E' class='fnname'>LOG2_E</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.PI' class='fnname'>PI</a>() -> Self;
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<div class='item-spacer'></div> fn <a href='#tymethod.SQRT_2' class='fnname'>SQRT_2</a>() -> Self;
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}</pre></div>
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<h2 id='required-methods' class='small-section-header'>Required methods<a href='#required-methods' class='anchor'></a></h2><div class='methods'><h3 id='tymethod.E' class='method'><code id='E.v'>fn <a href='#tymethod.E' class='fnname'>E</a>() -> Self</code></h3><div class='docblock'><p>Return Euler’s number.</p>
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</div><h3 id='tymethod.FRAC_1_PI' class='method'><code id='FRAC_1_PI.v'>fn <a href='#tymethod.FRAC_1_PI' class='fnname'>FRAC_1_PI</a>() -> Self</code></h3><div class='docblock'><p>Return <code>1.0 / π</code>.</p>
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</div><h3 id='tymethod.FRAC_1_SQRT_2' class='method'><code id='FRAC_1_SQRT_2.v'>fn <a href='#tymethod.FRAC_1_SQRT_2' class='fnname'>FRAC_1_SQRT_2</a>() -> Self</code></h3><div class='docblock'><p>Return <code>1.0 / sqrt(2.0)</code>.</p>
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</div><h3 id='tymethod.FRAC_2_PI' class='method'><code id='FRAC_2_PI.v'>fn <a href='#tymethod.FRAC_2_PI' class='fnname'>FRAC_2_PI</a>() -> Self</code></h3><div class='docblock'><p>Return <code>2.0 / π</code>.</p>
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</div><h3 id='tymethod.FRAC_2_SQRT_PI' class='method'><code id='FRAC_2_SQRT_PI.v'>fn <a href='#tymethod.FRAC_2_SQRT_PI' class='fnname'>FRAC_2_SQRT_PI</a>() -> Self</code></h3><div class='docblock'><p>Return <code>2.0 / sqrt(π)</code>.</p>
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</div><h3 id='tymethod.FRAC_PI_2' class='method'><code id='FRAC_PI_2.v'>fn <a href='#tymethod.FRAC_PI_2' class='fnname'>FRAC_PI_2</a>() -> Self</code></h3><div class='docblock'><p>Return <code>π / 2.0</code>.</p>
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</div><h3 id='tymethod.FRAC_PI_3' class='method'><code id='FRAC_PI_3.v'>fn <a href='#tymethod.FRAC_PI_3' class='fnname'>FRAC_PI_3</a>() -> Self</code></h3><div class='docblock'><p>Return <code>π / 3.0</code>.</p>
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</div><h3 id='tymethod.FRAC_PI_4' class='method'><code id='FRAC_PI_4.v'>fn <a href='#tymethod.FRAC_PI_4' class='fnname'>FRAC_PI_4</a>() -> Self</code></h3><div class='docblock'><p>Return <code>π / 4.0</code>.</p>
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</div><h3 id='tymethod.FRAC_PI_6' class='method'><code id='FRAC_PI_6.v'>fn <a href='#tymethod.FRAC_PI_6' class='fnname'>FRAC_PI_6</a>() -> Self</code></h3><div class='docblock'><p>Return <code>π / 6.0</code>.</p>
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</div><h3 id='tymethod.FRAC_PI_8' class='method'><code id='FRAC_PI_8.v'>fn <a href='#tymethod.FRAC_PI_8' class='fnname'>FRAC_PI_8</a>() -> Self</code></h3><div class='docblock'><p>Return <code>π / 8.0</code>.</p>
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</div><h3 id='tymethod.LN_10' class='method'><code id='LN_10.v'>fn <a href='#tymethod.LN_10' class='fnname'>LN_10</a>() -> Self</code></h3><div class='docblock'><p>Return <code>ln(10.0)</code>.</p>
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</div><h3 id='tymethod.LN_2' class='method'><code id='LN_2.v'>fn <a href='#tymethod.LN_2' class='fnname'>LN_2</a>() -> Self</code></h3><div class='docblock'><p>Return <code>ln(2.0)</code>.</p>
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</div><h3 id='tymethod.LOG10_E' class='method'><code id='LOG10_E.v'>fn <a href='#tymethod.LOG10_E' class='fnname'>LOG10_E</a>() -> Self</code></h3><div class='docblock'><p>Return <code>log10(e)</code>.</p>
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</div><h3 id='tymethod.LOG2_E' class='method'><code id='LOG2_E.v'>fn <a href='#tymethod.LOG2_E' class='fnname'>LOG2_E</a>() -> Self</code></h3><div class='docblock'><p>Return <code>log2(e)</code>.</p>
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</div><h3 id='tymethod.PI' class='method'><code id='PI.v'>fn <a href='#tymethod.PI' class='fnname'>PI</a>() -> Self</code></h3><div class='docblock'><p>Return Archimedes’ constant.</p>
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</div><h3 id='tymethod.SQRT_2' class='method'><code id='SQRT_2.v'>fn <a href='#tymethod.SQRT_2' class='fnname'>SQRT_2</a>() -> Self</code></h3><div class='docblock'><p>Return <code>sqrt(2.0)</code>.</p>
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</div></div><span class='loading-content'>Loading content...</span>
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<h2 id='foreign-impls' class='small-section-header'>Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a></h2><h3 id='impl-FloatConst-for-f32' class='impl'><code class='in-band'>impl <a class="trait" href="../../../num/traits/float/trait.FloatConst.html" title="trait num::traits::float::FloatConst">FloatConst</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a href='#impl-FloatConst-for-f32' class='anchor'></a><a class='srclink' href='../../../src/num_traits/float.rs.html#1926-1930' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.E' class="method hidden"><code id='E.v-1'>fn <a href='#method.E' class='fnname'>E</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_1_PI' class="method hidden"><code id='FRAC_1_PI.v-1'>fn <a href='#method.FRAC_1_PI' class='fnname'>FRAC_1_PI</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_1_SQRT_2' class="method hidden"><code id='FRAC_1_SQRT_2.v-1'>fn <a href='#method.FRAC_1_SQRT_2' class='fnname'>FRAC_1_SQRT_2</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_2_PI' class="method hidden"><code id='FRAC_2_PI.v-1'>fn <a href='#method.FRAC_2_PI' class='fnname'>FRAC_2_PI</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_2_SQRT_PI' class="method hidden"><code id='FRAC_2_SQRT_PI.v-1'>fn <a href='#method.FRAC_2_SQRT_PI' class='fnname'>FRAC_2_SQRT_PI</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_PI_2' class="method hidden"><code id='FRAC_PI_2.v-1'>fn <a href='#method.FRAC_PI_2' class='fnname'>FRAC_PI_2</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_PI_3' class="method hidden"><code id='FRAC_PI_3.v-1'>fn <a href='#method.FRAC_PI_3' class='fnname'>FRAC_PI_3</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_PI_4' class="method hidden"><code id='FRAC_PI_4.v-1'>fn <a href='#method.FRAC_PI_4' class='fnname'>FRAC_PI_4</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_PI_6' class="method hidden"><code id='FRAC_PI_6.v-1'>fn <a href='#method.FRAC_PI_6' class='fnname'>FRAC_PI_6</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></h4><h4 id='method.FRAC_PI_8' class="method hidden"><code id='FRAC_PI_8.v-1'>fn <a href='#method.FRAC_PI_8' class='fnname'>FRAC_PI_8</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a class='srclink' href='../../../src/num_traits/macros.r
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