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<div class="title">arm_class_marks_example_f32.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_class_marks_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code to calculate Minimum, Maximum</span></div>
<div class="line"><span class="comment">* Mean, std and variance of marks obtained in a class</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment">* -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define USE_STATIC_INIT</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Global defines</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define TEST_LENGTH_SAMPLES (20*4)</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** List of Marks scored by 20 students for 4 subjects</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a0"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a0153222efa82b7f1a0ea3835921bf921">testMarks_f32</a>[<a name="a1"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>] =</div>
<div class="line">{</div>
<div class="line"> 42.000000, 37.000000, 81.000000, 28.000000,</div>
<div class="line"> 83.000000, 72.000000, 36.000000, 38.000000,</div>
<div class="line"> 32.000000, 51.000000, 63.000000, 64.000000,</div>
<div class="line"> 97.000000, 82.000000, 95.000000, 90.000000,</div>
<div class="line"> 66.000000, 51.000000, 54.000000, 42.000000,</div>
<div class="line"> 67.000000, 56.000000, 45.000000, 57.000000,</div>
<div class="line"> 67.000000, 69.000000, 35.000000, 52.000000,</div>
<div class="line"> 29.000000, 81.000000, 58.000000, 47.000000,</div>
<div class="line"> 38.000000, 76.000000, 100.000000, 29.000000,</div>
<div class="line"> 33.000000, 47.000000, 29.000000, 50.000000,</div>
<div class="line"> 34.000000, 41.000000, 61.000000, 46.000000,</div>
<div class="line"> 52.000000, 50.000000, 48.000000, 36.000000,</div>
<div class="line"> 47.000000, 55.000000, 44.000000, 40.000000,</div>
<div class="line"> 100.000000, 94.000000, 84.000000, 37.000000,</div>
<div class="line"> 32.000000, 71.000000, 47.000000, 77.000000,</div>
<div class="line"> 31.000000, 50.000000, 49.000000, 35.000000,</div>
<div class="line"> 63.000000, 67.000000, 40.000000, 31.000000,</div>
<div class="line"> 29.000000, 68.000000, 61.000000, 38.000000,</div>
<div class="line"> 31.000000, 28.000000, 28.000000, 76.000000,</div>
<div class="line"> 55.000000, 33.000000, 29.000000, 39.000000</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Number of subjects X 1</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a2"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a993b9b2a1faf43b319c1c6d58b26e7a1">testUnity_f32</a>[4] =</div>
<div class="line">{</div>
<div class="line"> 1.000, 1.000, 1.000, 1.000</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** f32 Output buffer</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a3"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Global defines</span></div>
<div class="line"><span class="comment">*------------------------------------------------------------------- */</span></div>
<div class="line"><span class="preprocessor">#define NUMSTUDENTS 20</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define NUMSUBJECTS 4</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* ------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Global variables</span></div>
<div class="line"><span class="comment">*------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> uint32_t <a name="a4"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a> = 20;</div>
<div class="line"> uint32_t <a name="a5"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a3d01884f63bcb694226ca7c24980757a">numSubjects</a> = 4;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a6"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#aad32888fa966b3d9db9c31bcbba9d9ef">max_marks</a>, <a name="a7"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abb7687fa07ec54d8e792cfcbfe2ca809">min_marks</a>, <a name="a8"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#acc9290716b3c97381ce52d14b4b01681">mean</a>, <a name="a9"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a150b0cf729b51893379f5b5548d4f989">std</a>, <a name="a10"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a3bd39c4335d84be071cc1eaa9b0a8642">var</a>;</div>
<div class="line"> uint32_t <a name="a11"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a798cf43a3725d7df2fcaf3f328969f53">student_num</a>;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Main f32 test function. It returns maximum marks secured and student number</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a12"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>()</div>
<div class="line">{</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#ifndef USE_STATIC_INIT</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"> <a name="_a13"></a><a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> srcA;</div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> srcB;</div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> dstC;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Input and output matrices initializations */</span></div>
<div class="line"> <a name="a14"></a><a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&srcA, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a3d01884f63bcb694226ca7c24980757a">numSubjects</a>, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a0153222efa82b7f1a0ea3835921bf921">testMarks_f32</a>);</div>
<div class="line"> <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&srcB, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a3d01884f63bcb694226ca7c24980757a">numSubjects</a>, 1, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a993b9b2a1faf43b319c1c6d58b26e7a1">testUnity_f32</a>);</div>
<div class="line"> <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&dstC, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, 1, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>);</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#else</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"> <span class="comment">/* Static Initializations of Input and output matrix sizes and array */</span></div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> srcA = {<a name="a15"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a9d89ac0707e7c9363544986d47a70bd3">NUMSTUDENTS</a>, <a name="a16"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a7b02f9b34bf2cd4d12633f5bf30771ec">NUMSUBJECTS</a>, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a0153222efa82b7f1a0ea3835921bf921">testMarks_f32</a>};</div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> srcB = {<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a7b02f9b34bf2cd4d12633f5bf30771ec">NUMSUBJECTS</a>, 1, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a993b9b2a1faf43b319c1c6d58b26e7a1">testUnity_f32</a>};</div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> dstC = {<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a9d89ac0707e7c9363544986d47a70bd3">NUMSTUDENTS</a>, 1, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>};</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> *Call the Matrix multiplication process function</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a17"></a><a class="code" href="group___matrix_mult.html#ga917bf0270310c1d3f0eda1fc7c0026a0" title="Floating-point matrix multiplication.">arm_mat_mult_f32</a>(&srcA, &srcB, &dstC);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the Max function to calculate max marks among numStudents</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a18"></a><a class="code" href="group___max.html#ga5b89d1b04575aeec494f678695fb87d8" title="Maximum value of a floating-point vector.">arm_max_f32</a>(<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#aad32888fa966b3d9db9c31bcbba9d9ef">max_marks</a>, &<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a798cf43a3725d7df2fcaf3f328969f53">student_num</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the Min function to calculate min marks among numStudents</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a19"></a><a class="code" href="group___min.html#gaf62b1673740fc516ea64daf777b7d74a" title="Minimum value of a floating-point vector.">arm_min_f32</a>(<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abb7687fa07ec54d8e792cfcbfe2ca809">min_marks</a>, &<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a798cf43a3725d7df2fcaf3f328969f53">student_num</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the Mean function to calculate mean</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a20"></a><a class="code" href="group__mean.html#ga74ce08c49ab61e57bd50c3a0ca1fdb2b" title="Mean value of a floating-point vector.">arm_mean_f32</a>(<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#acc9290716b3c97381ce52d14b4b01681">mean</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the std function to calculate standard deviation</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a21"></a><a class="code" href="group___s_t_d.html#ga4969b5b5f3d001377bc401a3ee99dfc2" title="Standard deviation of the elements of a floating-point vector.">arm_std_f32</a>(<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a150b0cf729b51893379f5b5548d4f989">std</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the var function to calculate variance</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a22"></a><a class="code" href="group__variance.html#ga393f26c5a3bfa05624fb8d32232a6d96" title="Variance of the elements of a floating-point vector.">arm_var_f32</a>(<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a3bd39c4335d84be071cc1eaa9b0a8642">var</a>);</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span>(1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
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