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<title>CMSIS-DSP: Dot Product Example</title>
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<dl class="section user"><dt>Description:</dt><dd></dd></dl>
<dl class="section user"><dt></dt><dd>Demonstrates the use of the Multiply and Add functions to perform the dot product. The dot product of two vectors is obtained by multiplying corresponding elements and summing the products.</dd></dl>
<dl class="section user"><dt>Algorithm:</dt><dd></dd></dl>
<dl class="section user"><dt></dt><dd>The two input vectors <code>A</code> and <code>B</code> with length <code>n</code>, are multiplied element-by-element and then added to obtain dot product. </dd></dl>
<dl class="section user"><dt></dt><dd>This is denoted by the following equation: <pre> dotProduct = A[0] * B[0] + A[1] * B[1] + ... + A[n-1] * B[n-1]</pre></dd></dl>
<dl class="section user"><dt>Block Diagram:</dt><dd></dd></dl>
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<img src="dotProduct.gif" alt="dotProduct.gif"/>
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<dl class="section user"><dt>Variables Description:</dt><dd></dd></dl>
<dl class="section user"><dt></dt><dd><ul>
<li><code>srcA_buf_f32</code> points to first input vector </li>
<li><code>srcB_buf_f32</code> points to second input vector </li>
<li><code>testOutput</code> stores dot product of the two input vectors.</li>
</ul>
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<dl class="section user"><dt>CMSIS DSP Software Library Functions Used:</dt><dd></dd></dl>
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<li><a class="el" href="group___basic_mult.html#gaca3f0b8227da431ab29225b88888aa32" title="Floating-point vector multiplication.">arm_mult_f32()</a></li>
<li><a class="el" href="group___basic_add.html#ga6a904a547413b10565dd1d251c6bafbd" title="Floating-point vector addition.">arm_add_f32()</a></li>
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<p><b> Refer </b> <a class="el" href="arm_dotproduct_example_f32_8c-example.html">arm_dotproduct_example_f32.c</a> </p>
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