diff options
author | rihab kouki <rihab.kouki@st.com> | 2020-07-28 11:24:49 +0100 |
---|---|---|
committer | rihab kouki <rihab.kouki@st.com> | 2020-07-28 11:24:49 +0100 |
commit | 96d6da4e252b06dcfdc041e7df23e86161c33007 (patch) | |
tree | a262f59bb1db7ec7819acae435f5049cbe5e2354 /docs/DSP/html/group__SQRT.html | |
parent | 9f95ff5b6ba01db09552b84a0ab79607060a2666 (diff) | |
download | st-cmsis-core-lowfat-master.tar.gz st-cmsis-core-lowfat-master.tar.bz2 st-cmsis-core-lowfat-master.zip |
Diffstat (limited to 'docs/DSP/html/group__SQRT.html')
-rw-r--r-- | docs/DSP/html/group__SQRT.html | 171 |
1 files changed, 133 insertions, 38 deletions
diff --git a/docs/DSP/html/group__SQRT.html b/docs/DSP/html/group__SQRT.html index 3b9b605..fb4f8f3 100644 --- a/docs/DSP/html/group__SQRT.html +++ b/docs/DSP/html/group__SQRT.html @@ -32,7 +32,7 @@ <td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td> <td style="padding-left: 0.5em;"> <div id="projectname">CMSIS-DSP -  <span id="projectnumber">Version 1.5.2</span> +  <span id="projectnumber">Version 1.7.0</span> </div> <div id="projectbrief">CMSIS DSP Software Library</div> </td> @@ -116,16 +116,22 @@ $(document).ready(function(){initNavTree('group__SQRT.html','');}); <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> -<tr class="memitem:ga697d82c2747a3302cf44e7c9583da2e8"><td class="memItemLeft" align="right" valign="top">CMSIS_INLINE __STATIC_INLINE <br class="typebreak"/> -<a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SQRT.html#ga697d82c2747a3302cf44e7c9583da2e8">arm_sqrt_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> in, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pOut)</td></tr> -<tr class="memdesc:ga697d82c2747a3302cf44e7c9583da2e8"><td class="mdescLeft"> </td><td class="mdescRight">Floating-point square root function. <a href="#ga697d82c2747a3302cf44e7c9583da2e8">More...</a><br/></td></tr> -<tr class="separator:ga697d82c2747a3302cf44e7c9583da2e8"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga5f37f479666ee8ff9711b334286c60ed"><td class="memItemLeft" align="right" valign="top">__STATIC_FORCEINLINE <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SQRT.html#ga5f37f479666ee8ff9711b334286c60ed">arm_sqrt_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> in, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pOut)</td></tr> +<tr class="memdesc:ga5f37f479666ee8ff9711b334286c60ed"><td class="mdescLeft"> </td><td class="mdescRight">Floating-point square root function. <a href="#ga5f37f479666ee8ff9711b334286c60ed">More...</a><br/></td></tr> +<tr class="separator:ga5f37f479666ee8ff9711b334286c60ed"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga119e25831e141d734d7ef10636670058"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SQRT.html#ga119e25831e141d734d7ef10636670058">arm_sqrt_q31</a> (<a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> in, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut)</td></tr> <tr class="memdesc:ga119e25831e141d734d7ef10636670058"><td class="mdescLeft"> </td><td class="mdescRight">Q31 square root function. <a href="#ga119e25831e141d734d7ef10636670058">More...</a><br/></td></tr> <tr class="separator:ga119e25831e141d734d7ef10636670058"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga5abe5ca724f3e15849662b03752c1238"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SQRT.html#ga5abe5ca724f3e15849662b03752c1238">arm_sqrt_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> in, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pOut)</td></tr> <tr class="memdesc:ga5abe5ca724f3e15849662b03752c1238"><td class="mdescLeft"> </td><td class="mdescRight">Q15 square root function. <a href="#ga5abe5ca724f3e15849662b03752c1238">More...</a><br/></td></tr> <tr class="separator:ga5abe5ca724f3e15849662b03752c1238"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:gaa9b8a2bea8a22489bfd968eb4687a7bd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SQRT.html#gaa9b8a2bea8a22489bfd968eb4687a7bd">arm_vsqrt_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pIn, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pOut, uint16_t len)</td></tr> +<tr class="memdesc:gaa9b8a2bea8a22489bfd968eb4687a7bd"><td class="mdescLeft"> </td><td class="mdescRight">Vector Floating-point square root function. <a href="#gaa9b8a2bea8a22489bfd968eb4687a7bd">More...</a><br/></td></tr> +<tr class="separator:gaa9b8a2bea8a22489bfd968eb4687a7bd"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga5955b76f2a60c1636ff507182000193d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SQRT.html#ga5955b76f2a60c1636ff507182000193d">arm_vsqrt_q31</a> (<a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint16_t len)</td></tr> +<tr class="separator:ga5955b76f2a60c1636ff507182000193d"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga793f913a2b3a8f45577db36136954cdc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__SQRT.html#ga793f913a2b3a8f45577db36136954cdc">arm_vsqrt_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pIn, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pOut, uint16_t len)</td></tr> +<tr class="separator:ga793f913a2b3a8f45577db36136954cdc"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Description</h2> <p>Computes the square root of a number. There are separate functions for Q15, Q31, and floating-point data types. The square root function is computed using the Newton-Raphson algorithm. This is an iterative algorithm of the form: </p> @@ -136,12 +142,12 @@ Functions</h2></td></tr> x0 = in/2 [initial guess] x1 = 1/2 * ( x0 + in / x0) [each iteration] </pre> <h2 class="groupheader">Function Documentation</h2> -<a class="anchor" id="ga697d82c2747a3302cf44e7c9583da2e8"></a> +<a class="anchor" id="ga5f37f479666ee8ff9711b334286c60ed"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> - <td class="memname">CMSIS_INLINE __STATIC_INLINE <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> arm_sqrt_f32 </td> + <td class="memname">__STATIC_FORCEINLINE <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> arm_sqrt_f32 </td> <td>(</td> <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td> <td class="paramname"><em>in</em>, </td> @@ -161,16 +167,16 @@ Functions</h2></td></tr> </div><div class="memdoc"> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> - <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>input value. </td></tr> - <tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>square root of input value. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>input value </td></tr> + <tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>square root of input value </td></tr> </table> </dd> </dl> -<dl class="section return"><dt>Returns</dt><dd>The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if <code>in</code> is negative value and returns zero output for negative values. </dd></dl> - -<p>References <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a>, and <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>.</p> - -<p>Referenced by <a class="el" href="group__cmplx__mag.html#gae45024c497392cde2ae358a76d435213">arm_cmplx_mag_f32()</a>, <a class="el" href="group__RMS.html#ga0e3ab1b57da32d45388d1fa90d7fd88c">arm_rms_f32()</a>, and <a class="el" href="group__STD.html#ga4969b5b5f3d001377bc401a3ee99dfc2">arm_std_f32()</a>.</p> +<dl class="section return"><dt>Returns</dt><dd>execution status<ul> +<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : input value is positive</li> +<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : input value is negative; *pOut is set to 0 </li> +</ul> +</dd></dl> </div> </div> @@ -199,24 +205,16 @@ Functions</h2></td></tr> </div><div class="memdoc"> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> - <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>input value. The range of the input value is [0 +1) or 0x0000 to 0x7FFF. </td></tr> - <tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>square root of input value. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>input value. The range of the input value is [0 +1) or 0x0000 to 0x7FFF </td></tr> + <tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>points to square root of input value </td></tr> </table> </dd> </dl> -<dl class="section return"><dt>Returns</dt><dd>The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if <code>in</code> is negative value and returns zero output for negative values.</dd></dl> -<dl class="params"><dt>Parameters</dt><dd> - <table class="params"> - <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>input value. The range of the input value is [0 +1) or 0x0000 to 0x7FFF. </td></tr> - <tr><td class="paramdir">[out]</td><td class="paramname">*pOut</td><td>square root of input value. </td></tr> - </table> - </dd> -</dl> -<dl class="section return"><dt>Returns</dt><dd>The function returns ARM_MATH_SUCCESS if the input value is positive and ARM_MATH_ARGUMENT_ERROR if the input is negative. For negative inputs, the function returns *pOut = 0. </dd></dl> - -<p>References <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a>, and <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>.</p> - -<p>Referenced by <a class="el" href="group__cmplx__mag.html#ga0a4a8f77a6a51d9b3f3b9d729f85b7a4">arm_cmplx_mag_q15()</a>, <a class="el" href="group__RMS.html#gaf5b836b72dda9e5dfbbd17c7906fd13f">arm_rms_q15()</a>, and <a class="el" href="group__STD.html#gaf9d27afa9928ff28a63cd98ea9218a72">arm_std_q15()</a>.</p> +<dl class="section return"><dt>Returns</dt><dd>execution status<ul> +<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : input value is positive</li> +<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : input value is negative; *pOut is set to 0 </li> +</ul> +</dd></dl> </div> </div> @@ -245,24 +243,121 @@ Functions</h2></td></tr> </div><div class="memdoc"> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> - <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>input value. The range of the input value is [0 +1) or 0x00000000 to 0x7FFFFFFF. </td></tr> - <tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>square root of input value. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>input value. The range of the input value is [0 +1) or 0x00000000 to 0x7FFFFFFF </td></tr> + <tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>points to square root of input value </td></tr> </table> </dd> </dl> -<dl class="section return"><dt>Returns</dt><dd>The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if <code>in</code> is negative value and returns zero output for negative values.</dd></dl> +<dl class="section return"><dt>Returns</dt><dd>execution status<ul> +<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : input value is positive</li> +<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : input value is negative; *pOut is set to 0 </li> +</ul> +</dd></dl> + +</div> +</div> +<a class="anchor" id="gaa9b8a2bea8a22489bfd968eb4687a7bd"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void arm_vsqrt_f32 </td> + <td>(</td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td> + <td class="paramname"><em>pIn</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td> + <td class="paramname"><em>pOut</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint16_t </td> + <td class="paramname"><em>len</em> </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> - <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>input value. The range of the input value is [0 +1) or 0x00000000 to 0x7FFFFFFF. </td></tr> - <tr><td class="paramdir">[out]</td><td class="paramname">*pOut</td><td>square root of input value. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>input vector. </td></tr> + <tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>vector of square roots of input elements. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">len</td><td>length of input vector. </td></tr> </table> </dd> </dl> -<dl class="section return"><dt>Returns</dt><dd>The function returns ARM_MATH_SUCCESS if the input value is positive and ARM_MATH_ARGUMENT_ERROR if the input is negative. For negative inputs, the function returns *pOut = 0. </dd></dl> +<dl class="section return"><dt>Returns</dt><dd>The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if <code>in</code> is negative value and returns zero output for negative values. </dd></dl> -<p>References <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a>, and <a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>.</p> +</div> +</div> +<a class="anchor" id="ga793f913a2b3a8f45577db36136954cdc"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void arm_vsqrt_q15 </td> + <td>(</td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pIn</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pOut</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint16_t </td> + <td class="paramname"><em>len</em> </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> -<p>Referenced by <a class="el" href="group__cmplx__mag.html#ga14f82f9230e9d96d5b9774e2fefcb7be">arm_cmplx_mag_q31()</a>, <a class="el" href="group__RMS.html#gae33015fda23fc44e7ead5e5ed7e8d314">arm_rms_q31()</a>, and <a class="el" href="group__STD.html#ga39495e74f96116178be085c9dc7742f5">arm_std_q31()</a>.</p> +</div> +</div> +<a class="anchor" id="ga5955b76f2a60c1636ff507182000193d"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void arm_vsqrt_q31 </td> + <td>(</td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td> + <td class="paramname"><em>pIn</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td> + <td class="paramname"><em>pOut</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint16_t </td> + <td class="paramname"><em>len</em> </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> </div> </div> @@ -271,7 +366,7 @@ Functions</h2></td></tr> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> - <li class="footer">Generated on Wed Aug 1 2018 17:12:21 for CMSIS-DSP by Arm Ltd. All rights reserved. + <li class="footer">Generated on Wed Jul 10 2019 15:20:39 for CMSIS-DSP Version 1.7.0 by Arm Ltd. All rights reserved. <!-- <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 |