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Completed initial changes for supporting Math.Mpfr.Native.
2017-12-03 23:32:51 +01:00
<html><head><meta http-equiv="X-UA-Compatible" content="IE=edge" /><link rel="shortcut icon" href="../icons/favicon.ico" /><link rel="stylesheet" type="text/css" href="../styles/branding.css" /><link rel="stylesheet" type="text/css" href="../styles/branding-en-US.css" /><script type="text/javascript" src="../scripts/branding.js"> </script><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>gmp_lib.mpf_sqrt Method </title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="mpf_sqrt method" /><meta name="System.Keywords" content="gmp_lib.mpf_sqrt method" /><meta name="Microsoft.Help.F1" content="Math.Gmp.Native.gmp_lib.mpf_sqrt" /><meta name="Microsoft.Help.Id" content="M:Math.Gmp.Native.gmp_lib.mpf_sqrt(Math.Gmp.Native.mpf_t,Math.Gmp.Native.mpf_t)" /><meta name="Description" content="Set to the square root of ." /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="true" /><meta name="container" content="Math.Gmp.Native" /><meta name="file" content="00a7e91d-b046-f5d3-5b51-55868d87e228" /><meta name="guid" content="00a7e91d-b046-f5d3-5b51-55868d87e228" /><link type="text/css" rel="stylesheet" href="../styles/highlight.css" /><script type="text/javascript" src="../scripts/highlight.js"> </script><link rel="stylesheet" type="text/css" href="../styles/branding-Website.css" /><script type="text/javascript" src="../scripts/jquery-1.11.0.min.js"></script><script type="text/javascript" src="../scripts/branding-Website.js"></script><script type="text/javascript" src="../scripts/clipboard.min.js"></script></head><body onload="OnLoad('cs')"><input type="hidden" id="userDataCache" class="userDataStyle" /><div class="pageHeader" id="PageHeader">GMP Native Interface for .NET<form id="SearchForm" method="get" action="#" onsubmit="javascript:TransferToSearchPage(); return false;"><input id="SearchTextBox" type="text" maxlength="200" /><button id="SearchButton" type="submit"></button></form></div><div class="pageBody"><div class="leftNav" id="leftNav"><div id="tocNav"><div class="toclevel0" data-toclevel="0"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="846f5c8a-6cba-433e-9f18-cde2ff5695cd.htm" title="GMP Native Interface for .NET" tocid="roottoc">GMP Native Interface for .NET</a></div><div class="toclevel0" data-toclevel="0"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="d9c51b9f-0c54-770b-28ea-6eebd8fef368.htm" title="Math.Gmp.Native" tocid="d9c51b9f-0c54-770b-28ea-6eebd8fef368">Math.Gmp.Native</a></div><div class="toclevel0" data-toclevel="0"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm" title="gmp_lib Class" tocid="3af6b34c-3242-2b75-e7c7-ab79af8a4b0f">gmp_lib Class</a></div><div class="toclevel1" data-toclevel="1" data-childrenloaded="true"><a class="tocExpanded" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="0fa7cbf3-e8f4-6b14-d829-8aa663e77c74.htm" title="gmp_lib Methods" tocid="0fa7cbf3-e8f4-6b14-d829-8aa663e77c74">gmp_lib Methods</a></div><div class="toclevel2" data-toclevel="2"><a data-tochassubtree="false" href="c9cb6a67-59b8-5c03-f31d-f252441c53f6.htm" title="_mpz_realloc Method " tocid="c9cb6a67-59b8-5c03-f31d-f252441c53f6">_mpz_realloc Method </a></div><div class="toclevel2" data-toclevel="2"><a data-tochassubtree="false" href="2c68671c-cd5c-e2ec-52a2-65b0ca31c3d1.htm" title="allocate Method " tocid="2c68671c-cd5c-e2ec-52a2-65b0ca31c3d1">allocate Method </a></div><div class="toclevel2" data-toclevel="2"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="92160da3-b1af-e005-cb05-e3fb4dd524d8.htm" title="free Method " tocid="92160da3-b1af-e005-cb05-e3fb4dd524d8">free Method </a></div><div class="toclevel2" data-toclevel="2"><a data-tochassubtree="false" href="fe6e46c3-8464-a080-b5fc-718589320cd5.htm" title="gmp_asprint
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Set <span class="parameter">rop</span> to the square root of <span class="parameter">op</span>.
</div><p> </p>
<strong>Namespace:</strong>
 <a href="d9c51b9f-0c54-770b-28ea-6eebd8fef368.htm">Math.Gmp.Native</a><br />
<strong>Assembly:</strong>
 Math.Gmp.Native (in Math.Gmp.Native.dll) Version: 1.0.0.0 (1.0.0.0)<div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID1RB')" onkeypress="SectionExpandCollapse_CheckKey('ID1RB', event)" tabindex="0"><img id="ID1RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Syntax</span></div><div id="ID1RBSection" class="collapsibleSection"><div class="codeSnippetContainer"><div class="codeSnippetContainerTabs"><div id="ID0EDCA_tab1" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','cs','1','4');return false;">C#</a></div><div id="ID0EDCA_tab2" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','vb','2','4');return false;">VB</a></div><div id="ID0EDCA_tab3" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','cpp','3','4');return false;">C++</a></div><div id="ID0EDCA_tab4" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','fs','4','4');return false;">F#</a></div></div><div class="codeSnippetContainerCodeContainer"><div class="codeSnippetToolBar"><div class="codeSnippetToolBarText"><a id="ID0EDCA_copyCode" href="#" class="copyCodeSnippet" onclick="javascript:CopyToClipboard('ID0EDCA');return false;" title="Copy">Copy</a></div></div><div id="ID0EDCA_code_Div1" class="codeSnippetContainerCode" style="display: block"><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="identifier">mpf_sqrt</span>(
<span class="identifier">mpf_t</span> <span class="parameter">rop</span>,
<span class="identifier">mpf_t</span> <span class="parameter">op</span>
)</pre></div><div id="ID0EDCA_code_Div2" class="codeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">Public</span> <span class="keyword">Shared</span> <span class="keyword">Sub</span> <span class="identifier">mpf_sqrt</span> (
<span class="parameter">rop</span> <span class="keyword">As</span> <span class="identifier">mpf_t</span>,
<span class="parameter">op</span> <span class="keyword">As</span> <span class="identifier">mpf_t</span>
)</pre></div><div id="ID0EDCA_code_Div3" class="codeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">public</span>:
<span class="keyword">static</span> <span class="keyword">void</span> <span class="identifier">mpf_sqrt</span>(
<span class="identifier">mpf_t</span>^ <span class="parameter">rop</span>,
<span class="identifier">mpf_t</span>^ <span class="parameter">op</span>
)</pre></div><div id="ID0EDCA_code_Div4" class="codeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">static</span> <span class="keyword">member</span> <span class="identifier">mpf_sqrt</span> :
<span class="parameter">rop</span> : <span class="identifier">mpf_t</span> *
<span class="parameter">op</span> : <span class="identifier">mpf_t</span> <span class="keyword">-&gt;</span> <span class="keyword">unit</span>
</pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EDCA");</script><h4 class="subHeading">Parameters</h4><dl><dt><span class="parameter">rop</span></dt><dd>Type: <a href="37c88d6c-8d02-2330-ad77-f20fb73d1677.htm">Math.Gmp.Native<span id="LST5CB2475E_1"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_1?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_t</a><br />The result float.</dd><dt><span class="parameter">op</span></dt><dd>Type: <a href="37c88d6c-8d02-2330-ad77-f20fb73d1677.htm">Math.Gmp.Native<span id="LST5CB2475E_2"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_2?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_t</a><br />The operand.</dd></dl></div><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID2RB')" onkeypress="SectionExpandCollapse_CheckKey('ID2RB', event)" tabindex="0"><img id="ID2RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Examples</span></div><div id="ID2RBSection" class="collapsibleSection"><div class="codeSnippetContainer"><div class="codeSnippetContainerTabs"><div id="ID0EDAABA_tab1" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDAABA','cs','1','4');return false;">C#</a></div><div id="ID0EDAABA_tab2" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDAABA','vb','2','4');return false;">VB</a></div><div id="ID0EDAABA_tab3" class="codeSnippetContainerTabPhantom"><a href="#" onclick="javascript:ChangeTab('ID0EDAABA','cpp','3','4');return false;">C++</a></div><div id="ID0EDAABA_tab4" class="codeSnippetContainerTabPhantom"><a href="#" onclick="javascript:ChangeTab('ID0EDAABA','fs','4','4');return false;">F#</a></div></div><div class="codeSnippetContainerCodeContainer"><div class="codeSnippetToolBar"><div class="codeSnippetToolBarText"><a id="ID0EDAABA_copyCode" href="#" class="copyCodeSnippet" onclick="javascript:CopyToClipboard('ID0EDAABA');return false;" title="Copy">Copy</a></div></div><div id="ID0EDAABA_code_Div1" class="codeSnippetContainerCode" style="display: block"><pre xml:space="preserve"><span class="highlight-comment">// Set default precision to 64 bits.</span>
gmp_lib.mpf_set_default_prec(<span class="highlight-number">64</span>U);
<span class="highlight-comment">// Create, initialize, and set a new floating-point number x to 100.</span>
mpf_t x = <span class="highlight-keyword">new</span> mpf_t();
gmp_lib.mpf_init_set_si(x, <span class="highlight-number">100</span>);
<span class="highlight-comment">// Create and initialize a new floating-point number z.</span>
mpf_t z = <span class="highlight-keyword">new</span> mpf_t();
gmp_lib.mpf_init(z);
<span class="highlight-comment">// Set z = sqrt(x).</span>
gmp_lib.mpf_sqrt(z, x);
<span class="highlight-comment">// Assert that the value of z is 10.</span>
Assert.IsTrue(gmp_lib.mpf_get_d(z) == <span class="highlight-number">10.0</span>);
<span class="highlight-comment">// Release unmanaged memory allocated for x and z.</span>
gmp_lib.mpf_clears(x, z, <span class="highlight-keyword">null</span>);</pre></div><div id="ID0EDAABA_code_Div2" class="codeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="highlight-comment">' Set default precision to 64 bits.</span>
gmp_lib.mpf_set_default_prec(<span class="highlight-number">64</span>UI)
<span class="highlight-comment">' Create, initialize, and set a new floating-point number x to 100.</span>
<span class="highlight-keyword">Dim</span> x <span class="highlight-keyword">As</span> <span class="highlight-keyword">New</span> mpf_t()
gmp_lib.mpf_init_set_si(x, <span class="highlight-number">100</span>)
<span class="highlight-comment">' Create and initialize a new floating-point number z.</span>
<span class="highlight-keyword">Dim</span> z <span class="highlight-keyword">As</span> <span class="highlight-keyword">New</span> mpf_t()
gmp_lib.mpf_init(z)
<span class="highlight-comment">' Set z = sqrt(x).</span>
gmp_lib.mpf_sqrt(z, x)
<span class="highlight-comment">' Assert that the value of z is 10.</span>
Assert.IsTrue(gmp_lib.mpf_get_d(z) = <span class="highlight-number">10.0</span>)
<span class="highlight-comment">' Release unmanaged memory allocated for x and z.</span>
gmp_lib.mpf_clears(x, z, <span class="highlight-keyword">Nothing</span>)</pre></div><div id="ID0EDAABA_code_Div3" class="codeSnippetContainerCode" style="display: none"><p>No code example is currently available or this language may not be supported.</p></div><div id="ID0EDAABA_code_Div4" class="codeSnippetContainerCode" style="display: none"><p>No code example is currently available or this language may not be supported.</p></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EDAABA");</script></div><div class="collapsibleAreaRegion" id="seeAlsoSection"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID3RB')" onkeypress="SectionExpandCollapse_CheckKey('ID3RB', event)" tabindex="0"><img id="ID3RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />See Also</span></div><div id="ID3RBSection" class="collapsibleSection"><h4 class="subHeading">Reference</h4><div class="seeAlsoStyle"><a href="3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm">gmp_lib Class</a></div><div class="seeAlsoStyle"><a href="d9c51b9f-0c54-770b-28ea-6eebd8fef368.htm">Math.Gmp.Native Namespace</a></div><div class="seeAlsoStyle"><a href="c19999f1-01ee-a3fe-dc4d-2a459e73492d.htm">gmp_lib<span id="LST5CB2475E_3"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_3?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_add(mpf_t, mpf_t, mpf_t)</a></div><div class="seeAlsoStyle"><a href="718e7623-d25b-8a09-2543-745f24cd82c1.htm">gmp_lib<span id="LST5CB2475E_4"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_4?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_sub(mpf_t, mpf_t, mpf_t)</a></div><div class="seeAlsoStyle"><a href="309e6a8c-1318-2d30-a058-f119193546a0.htm">gmp_lib<span id="LST5CB2475E_5"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_5?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_mul(mpf_t, mpf_t, mpf_t)</a></div><div class="seeAlsoStyle"><a href="4e876639-72f5-7659-f4a9-862639e27e1c.htm">gmp_lib<span id="LST5CB2475E_6"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_6?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_div(mpf_t, mpf_t, mpf_t)</a></div><div class="seeAlsoStyle"><a href="44e6038b-2e97-b53d-0d46-ce1fff3522d0.htm">gmp_lib<span id="LST5CB2475E_7"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_7?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_sqrt_ui(mpf_t, UInt32)</a></div><div class="seeAlsoStyle"><a href="96e2fb95-0ac0-3d24-bea9-ee5631f30347.htm">gmp_lib<span id="LST5CB2475E_8"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_8?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_pow_ui(mpf_t, mpf_t, UInt32)</a></div><div class="seeAlsoStyle"><a href="357791cb-951d-5542-ff67-c00ef5e9aadb.htm">gmp_lib<span id="LST5CB2475E_9"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_9?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_neg(mpf_t, mpf_t)</a></div><div class="seeAlsoStyle"><a href="17731ba4-bf91-6b9b-737a-a9cc306ba17d.htm">gmp_lib<span id="LST5CB2475E_10"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST5CB2475E_10?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>mpf_abs(mpf_t, mpf_t)</a></div><div class="seeAlsoStyle"><a href="3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm"><a href="https://gmplib.org/manual/Float-Arithmetic.html#Float-Arithmetic">GNU MP - Float Arithmetic</a></a></div></div></div></div><div id="pageFooter" class="pageFooter"> </div></body></html>