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<a href="#func-members">Functions</a> </div>
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<div class="headertitle"><div class="title">Matrix Subtraction<div class="ingroups"><a class="el" href="group__groupMatrix.html">Matrix Functions</a></div></div></div>
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</div><!--header-->
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<div class="contents">
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga785d8331832eec038cef82c12b0012d5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__MatrixSub.html#ga785d8331832eec038cef82c12b0012d5">arm_mat_sub_f16</a> (const <a class="el" href="structarm__matrix__instance__f16.html">arm_matrix_instance_f16</a> *pSrcA, const <a class="el" href="structarm__matrix__instance__f16.html">arm_matrix_instance_f16</a> *pSrcB, <a class="el" href="structarm__matrix__instance__f16.html">arm_matrix_instance_f16</a> *pDst)</td></tr>
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<tr class="memdesc:ga785d8331832eec038cef82c12b0012d5"><td class="mdescLeft"> </td><td class="mdescRight">Floating-point matrix subtraction. <a href="group__MatrixSub.html#ga785d8331832eec038cef82c12b0012d5">More...</a><br /></td></tr>
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<tr class="separator:ga785d8331832eec038cef82c12b0012d5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac8b72fb70246ccfee3b372002345732c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__MatrixSub.html#gac8b72fb70246ccfee3b372002345732c">arm_mat_sub_f32</a> (const <a class="el" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> *pSrcA, const <a class="el" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> *pSrcB, <a class="el" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> *pDst)</td></tr>
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<tr class="memdesc:gac8b72fb70246ccfee3b372002345732c"><td class="mdescLeft"> </td><td class="mdescRight">Floating-point matrix subtraction. <a href="group__MatrixSub.html#gac8b72fb70246ccfee3b372002345732c">More...</a><br /></td></tr>
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<tr class="separator:gac8b72fb70246ccfee3b372002345732c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gacae21792b19d19d238dcf9d341aa7ae3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__MatrixSub.html#gacae21792b19d19d238dcf9d341aa7ae3">arm_mat_sub_f64</a> (const <a class="el" href="structarm__matrix__instance__f64.html">arm_matrix_instance_f64</a> *pSrcA, const <a class="el" href="structarm__matrix__instance__f64.html">arm_matrix_instance_f64</a> *pSrcB, <a class="el" href="structarm__matrix__instance__f64.html">arm_matrix_instance_f64</a> *pDst)</td></tr>
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<tr class="memdesc:gacae21792b19d19d238dcf9d341aa7ae3"><td class="mdescLeft"> </td><td class="mdescRight">Floating-point matrix subtraction. <a href="group__MatrixSub.html#gacae21792b19d19d238dcf9d341aa7ae3">More...</a><br /></td></tr>
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<tr class="separator:gacae21792b19d19d238dcf9d341aa7ae3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaf647776a425b7f9dd0aca3e11d81f02f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__MatrixSub.html#gaf647776a425b7f9dd0aca3e11d81f02f">arm_mat_sub_q15</a> (const <a class="el" href="structarm__matrix__instance__q15.html">arm_matrix_instance_q15</a> *pSrcA, const <a class="el" href="structarm__matrix__instance__q15.html">arm_matrix_instance_q15</a> *pSrcB, <a class="el" href="structarm__matrix__instance__q15.html">arm_matrix_instance_q15</a> *pDst)</td></tr>
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<tr class="memdesc:gaf647776a425b7f9dd0aca3e11d81f02f"><td class="mdescLeft"> </td><td class="mdescRight">Q15 matrix subtraction. <a href="group__MatrixSub.html#gaf647776a425b7f9dd0aca3e11d81f02f">More...</a><br /></td></tr>
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<tr class="separator:gaf647776a425b7f9dd0aca3e11d81f02f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga39f42e0e3b7f115fbb909d6ff4e1329d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__MatrixSub.html#ga39f42e0e3b7f115fbb909d6ff4e1329d">arm_mat_sub_q31</a> (const <a class="el" href="structarm__matrix__instance__q31.html">arm_matrix_instance_q31</a> *pSrcA, const <a class="el" href="structarm__matrix__instance__q31.html">arm_matrix_instance_q31</a> *pSrcB, <a class="el" href="structarm__matrix__instance__q31.html">arm_matrix_instance_q31</a> *pDst)</td></tr>
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<tr class="memdesc:ga39f42e0e3b7f115fbb909d6ff4e1329d"><td class="mdescLeft"> </td><td class="mdescRight">Q31 matrix subtraction. <a href="group__MatrixSub.html#ga39f42e0e3b7f115fbb909d6ff4e1329d">More...</a><br /></td></tr>
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<tr class="separator:ga39f42e0e3b7f115fbb909d6ff4e1329d"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
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<p >Subtract two matrices. </p><dl class="section user"><dt>Subraction of two 3 x 3 matrices</dt><dd></dd></dl>
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<p class="formulaDsp">
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\[ \begin{pmatrix} a_{1,1} & a_{1,2} & a_{1,3} \\ a_{2,1} & a_{2,2} & a_{2,3} \\ a_{3,1} & a_{3,2} & a_{3,3} \\ \end{pmatrix} - \begin{pmatrix} b_{1,1} & b_{1,2} & b_{1,3} \\ b_{2,1} & b_{2,2} & b_{2,3} \\ b_{3,1} & b_{3,2} & b_{3,3} \\ \end{pmatrix} = \begin{pmatrix} a_{1,1}-b_{1,1} & a_{1,2}-b_{1,2} & a_{1,3}-b_{1,3} \\ a_{2,1}-b_{2,1} & a_{2,2}-b_{2,2} & a_{2,3}-b_{2,3} \\ a_{3,1}-b_{3,1} & a_{3,2}-b_{3,2} & a_{3,3}-b_{3,3} \\ \end{pmatrix} \]
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</p>
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<p> The functions check to make sure that <code>pSrcA</code>, <code>pSrcB</code>, and <code>pDst</code> have the same number of rows and columns. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<a id="ga785d8331832eec038cef82c12b0012d5" name="ga785d8331832eec038cef82c12b0012d5"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga785d8331832eec038cef82c12b0012d5">◆ </a></span>arm_mat_sub_f16()</h2>
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<td class="memname"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> arm_mat_sub_f16 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__f16.html">arm_matrix_instance_f16</a> * </td>
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<td class="paramname"><em>pSrcA</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__f16.html">arm_matrix_instance_f16</a> * </td>
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<td class="paramname"><em>pSrcB</em>, </td>
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<td></td>
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<td class="paramtype"><a class="el" href="structarm__matrix__instance__f16.html">arm_matrix_instance_f16</a> * </td>
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<td class="paramname"><em>pDst</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcA</td><td>points to the first input matrix structure </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input matrix structure </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output matrix structure </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a7071b92f1f6bc3c5c312a237ea91105b">ARM_MATH_SIZE_MISMATCH</a> : Matrix size check failed </li>
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</ul>
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</dd></dl>
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<a id="gac8b72fb70246ccfee3b372002345732c" name="gac8b72fb70246ccfee3b372002345732c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gac8b72fb70246ccfee3b372002345732c">◆ </a></span>arm_mat_sub_f32()</h2>
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<td class="memname"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> arm_mat_sub_f32 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> * </td>
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<td class="paramname"><em>pSrcA</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> * </td>
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<td class="paramname"><em>pSrcB</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> * </td>
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<td class="paramname"><em>pDst</em> </td>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcA</td><td>points to the first input matrix structure </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input matrix structure </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output matrix structure </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a7071b92f1f6bc3c5c312a237ea91105b">ARM_MATH_SIZE_MISMATCH</a> : Matrix size check failed </li>
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</ul>
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</dd></dl>
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<a id="gacae21792b19d19d238dcf9d341aa7ae3" name="gacae21792b19d19d238dcf9d341aa7ae3"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gacae21792b19d19d238dcf9d341aa7ae3">◆ </a></span>arm_mat_sub_f64()</h2>
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<td class="memname"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> arm_mat_sub_f64 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__f64.html">arm_matrix_instance_f64</a> * </td>
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<td class="paramname"><em>pSrcA</em>, </td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__f64.html">arm_matrix_instance_f64</a> * </td>
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<td class="paramname"><em>pSrcB</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="structarm__matrix__instance__f64.html">arm_matrix_instance_f64</a> * </td>
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<td class="paramname"><em>pDst</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcA</td><td>points to the first input matrix structure </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input matrix structure </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output matrix structure </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a7071b92f1f6bc3c5c312a237ea91105b">ARM_MATH_SIZE_MISMATCH</a> : Matrix size check failed </li>
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</ul>
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</dd></dl>
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</div>
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</div>
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<a id="gaf647776a425b7f9dd0aca3e11d81f02f" name="gaf647776a425b7f9dd0aca3e11d81f02f"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaf647776a425b7f9dd0aca3e11d81f02f">◆ </a></span>arm_mat_sub_q15()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> arm_mat_sub_q15 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__q15.html">arm_matrix_instance_q15</a> * </td>
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<td class="paramname"><em>pSrcA</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__q15.html">arm_matrix_instance_q15</a> * </td>
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<td class="paramname"><em>pSrcB</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="structarm__matrix__instance__q15.html">arm_matrix_instance_q15</a> * </td>
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<td class="paramname"><em>pDst</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcA</td><td>points to the first input matrix structure </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input matrix structure </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output matrix structure </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a7071b92f1f6bc3c5c312a237ea91105b">ARM_MATH_SIZE_MISMATCH</a> : Matrix size check failed</li>
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</ul>
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</dd></dl>
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<dl class="section user"><dt>Scaling and Overflow Behavior</dt><dd>The function uses saturating arithmetic. Results outside of the allowable Q15 range [0x8000 0x7FFF] are saturated. </dd></dl>
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</div>
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</div>
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<a id="ga39f42e0e3b7f115fbb909d6ff4e1329d" name="ga39f42e0e3b7f115fbb909d6ff4e1329d"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga39f42e0e3b7f115fbb909d6ff4e1329d">◆ </a></span>arm_mat_sub_q31()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> arm_mat_sub_q31 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__q31.html">arm_matrix_instance_q31</a> * </td>
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<td class="paramname"><em>pSrcA</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structarm__matrix__instance__q31.html">arm_matrix_instance_q31</a> * </td>
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<td class="paramname"><em>pSrcB</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="structarm__matrix__instance__q31.html">arm_matrix_instance_q31</a> * </td>
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<td class="paramname"><em>pDst</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
|
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<table class="params">
|
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcA</td><td>points to the first input matrix structure </td></tr>
|
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input matrix structure </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output matrix structure </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
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<li><a class="el" href="arm__math__types_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a7071b92f1f6bc3c5c312a237ea91105b">ARM_MATH_SIZE_MISMATCH</a> : Matrix size check failed</li>
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</ul>
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</dd></dl>
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<dl class="section user"><dt>Scaling and Overflow Behavior</dt><dd>The function uses saturating arithmetic. Results outside of the allowable Q31 range [0x80000000 0x7FFFFFFF] are saturated. </dd></dl>
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</div>
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</div>
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