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<a href="#func-members">Functions</a> </div>
<div class="headertitle"><div class="title">Vector Multiplication<div class="ingroups"><a class="el" href="group__groupMath.html">Basic Math Functions</a></div></div></div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gab63de9c5e819f9ad88171a2511bff1c3"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicMult.html#gab63de9c5e819f9ad88171a2511bff1c3">arm_mult_f16</a> (const float16_t *pSrcA, const float16_t *pSrcB, float16_t *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:gab63de9c5e819f9ad88171a2511bff1c3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Floating-point vector multiplication. <a href="group__BasicMult.html#gab63de9c5e819f9ad88171a2511bff1c3">More...</a><br /></td></tr>
<tr class="separator:gab63de9c5e819f9ad88171a2511bff1c3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gacf950935141cad927bea886e88fd9e9b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicMult.html#gacf950935141cad927bea886e88fd9e9b">arm_mult_f32</a> (const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrcA, const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrcB, <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:gacf950935141cad927bea886e88fd9e9b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Floating-point vector multiplication. <a href="group__BasicMult.html#gacf950935141cad927bea886e88fd9e9b">More...</a><br /></td></tr>
<tr class="separator:gacf950935141cad927bea886e88fd9e9b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga3f4184b71b6628705694e4a55a3fda6e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicMult.html#ga3f4184b71b6628705694e4a55a3fda6e">arm_mult_f64</a> (const <a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> *pSrcA, const <a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> *pSrcB, <a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:ga3f4184b71b6628705694e4a55a3fda6e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Floating-point vector multiplication. <a href="group__BasicMult.html#ga3f4184b71b6628705694e4a55a3fda6e">More...</a><br /></td></tr>
<tr class="separator:ga3f4184b71b6628705694e4a55a3fda6e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaeeda8cdc2c7e79c8a26e905342a0bb17"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicMult.html#gaeeda8cdc2c7e79c8a26e905342a0bb17">arm_mult_q15</a> (const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrcA, const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrcB, <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:gaeeda8cdc2c7e79c8a26e905342a0bb17"><td class="mdescLeft">&#160;</td><td class="mdescRight">Q15 vector multiplication. <a href="group__BasicMult.html#gaeeda8cdc2c7e79c8a26e905342a0bb17">More...</a><br /></td></tr>
<tr class="separator:gaeeda8cdc2c7e79c8a26e905342a0bb17"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf12c75306edf16759bdedd849984324e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicMult.html#gaf12c75306edf16759bdedd849984324e">arm_mult_q31</a> (const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrcA, const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrcB, <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:gaf12c75306edf16759bdedd849984324e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Q31 vector multiplication. <a href="group__BasicMult.html#gaf12c75306edf16759bdedd849984324e">More...</a><br /></td></tr>
<tr class="separator:gaf12c75306edf16759bdedd849984324e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga7b852d225dd7e91f19107fdcea38a3cb"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicMult.html#ga7b852d225dd7e91f19107fdcea38a3cb">arm_mult_q7</a> (const <a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pSrcA, const <a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pSrcB, <a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:ga7b852d225dd7e91f19107fdcea38a3cb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Q7 vector multiplication. <a href="group__BasicMult.html#ga7b852d225dd7e91f19107fdcea38a3cb">More...</a><br /></td></tr>
<tr class="separator:ga7b852d225dd7e91f19107fdcea38a3cb"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p >Element-by-element multiplication of two vectors.</p>
<pre>
pDst[n] = pSrcA[n] * pSrcB[n], 0 &lt;= n &lt; blockSize.
</pre><p >There are separate functions for floating-point, Q7, Q15, and Q31 data types. </p>
<h2 class="groupheader">Function Documentation</h2>
<a id="gab63de9c5e819f9ad88171a2511bff1c3" name="gab63de9c5e819f9ad88171a2511bff1c3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gab63de9c5e819f9ad88171a2511bff1c3">&#9670;&nbsp;</a></span>arm_mult_f16()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_mult_f16 </td>
<td>(</td>
<td class="paramtype">const float16_t *&#160;</td>
<td class="paramname"><em>pSrcA</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const float16_t *&#160;</td>
<td class="paramname"><em>pSrcB</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float16_t *&#160;</td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>blockSize</em>&#160;</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">pSrcA</td><td>points to the first input vector. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input vector. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output vector. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</div>
</div>
<a id="gacf950935141cad927bea886e88fd9e9b" name="gacf950935141cad927bea886e88fd9e9b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gacf950935141cad927bea886e88fd9e9b">&#9670;&nbsp;</a></span>arm_mult_f32()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_mult_f32 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
<td class="paramname"><em>pSrcA</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
<td class="paramname"><em>pSrcB</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>blockSize</em>&#160;</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">pSrcA</td><td>points to the first input vector. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input vector. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output vector. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</div>
</div>
<a id="ga3f4184b71b6628705694e4a55a3fda6e" name="ga3f4184b71b6628705694e4a55a3fda6e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga3f4184b71b6628705694e4a55a3fda6e">&#9670;&nbsp;</a></span>arm_mult_f64()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_mult_f64 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> *&#160;</td>
<td class="paramname"><em>pSrcA</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> *&#160;</td>
<td class="paramname"><em>pSrcB</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> *&#160;</td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>blockSize</em>&#160;</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">pSrcA</td><td>points to the first input vector. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input vector. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output vector. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</div>
</div>
<a id="gaeeda8cdc2c7e79c8a26e905342a0bb17" name="gaeeda8cdc2c7e79c8a26e905342a0bb17"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaeeda8cdc2c7e79c8a26e905342a0bb17">&#9670;&nbsp;</a></span>arm_mult_q15()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_mult_q15 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
<td class="paramname"><em>pSrcA</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
<td class="paramname"><em>pSrcB</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>blockSize</em>&#160;</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">pSrcA</td><td>points to first input vector </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to second input vector </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output vector </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
<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>
<a id="gaf12c75306edf16759bdedd849984324e" name="gaf12c75306edf16759bdedd849984324e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaf12c75306edf16759bdedd849984324e">&#9670;&nbsp;</a></span>arm_mult_q31()</h2>
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<td class="memname">void arm_mult_q31 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *&#160;</td>
<td class="paramname"><em>pSrcA</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *&#160;</td>
<td class="paramname"><em>pSrcB</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *&#160;</td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>blockSize</em>&#160;</td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pSrcA</td><td>points to the first input vector. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input vector. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output vector. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
<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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<h2 class="memtitle"><span class="permalink"><a href="#ga7b852d225dd7e91f19107fdcea38a3cb">&#9670;&nbsp;</a></span>arm_mult_q7()</h2>
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<td class="memname">void arm_mult_q7 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *&#160;</td>
<td class="paramname"><em>pSrcA</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *&#160;</td>
<td class="paramname"><em>pSrcB</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *&#160;</td>
<td class="paramname"><em>pDst</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>blockSize</em>&#160;</td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pSrcA</td><td>points to the first input vector </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pSrcB</td><td>points to the second input vector </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output vector </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
<dl class="section user"><dt>Scaling and Overflow Behavior</dt><dd>The function uses saturating arithmetic. Results outside of the allowable Q7 range [0x80 0x7F] are saturated. </dd></dl>
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