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		<title>Metode Numerik Turunan Numerik</title>
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		<dc:creator><![CDATA[ramzilhuda]]></dc:creator>
		<pubDate>Fri, 26 Nov 2021 01:00:30 +0000</pubDate>
				<category><![CDATA[Metode Numerik]]></category>
		<category><![CDATA[Hampiran Selisih Maju]]></category>
		<category><![CDATA[Hampiran Selisih pusat]]></category>
		<category><![CDATA[metode numerik]]></category>
		<category><![CDATA[Turunan Numerik]]></category>
		<guid isPermaLink="false">https://ramzilhuda.com/?p=504</guid>

					<description><![CDATA[3 Pendekatan Numerik Pada artikel sebelumnya kita sudah membahas tentang Integrasi Numerik Pendekatan numerik memiliki 3 hampiran diantaranya : Hampiran Selisih Maju Hampiran Selisih Mundur Hampiran Selisih Pusat Perhitungan turunan numerik dapat dilakukan dengan  menggunakan nilai-nilai diskrit yang ditampilkan dalam bentuk tabel. 3 pendekatan numerik yang digunakan untuk menghitung turunan pertama yaitu : Contoh : [&#8230;]]]></description>
										<content:encoded><![CDATA[<h1><strong>3 Pendekatan Numerik</strong></h1>
<p>Pada artikel sebelumnya kita sudah membahas tentang <a href="https://ramzilhuda.com/metode-numerik-integrasi-numerik/">Integrasi Numerik</a></p>
<p>Pendekatan numerik memiliki 3 hampiran diantaranya :</p>
<ol>
<li><b>Hampiran</b><b> Selisih Maju</b></li>
<li><b>Hampiran</b><b> Selisih Mundur</b></li>
<li><b>Hampiran</b><b> Selisih Pusat</b></li>
</ol>
<p>Perhitungan turunan numerik dapat dilakukan dengan  menggunakan nilai-nilai <a href="https://ramzilhuda.com/logika-proposisi-matematika-diskrit/">diskrit</a> yang ditampilkan dalam bentuk tabel. 3 pendekatan numerik yang digunakan untuk menghitung turunan pertama yaitu :</p>
<p><img data-recalc-dims="1" fetchpriority="high" decoding="async" class="aligncenter size-full wp-image-505" src="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_1-4.jpg?resize=629%2C311&#038;ssl=1" alt="" width="629" height="311" srcset="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_1-4.jpg?w=629&amp;ssl=1 629w, https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_1-4.jpg?resize=300%2C148&amp;ssl=1 300w" sizes="(max-width: 629px) 100vw, 629px" /></p>
<p>Contoh :</p>
<p>Definisikan fungsi <i>f(x)</i> = e<i>x</i> – 5<i>x</i><i>2</i> dalam interval a = 1.3 dan b = 2.5  dengan <i>h = </i>0.2.</p>
<p>Kemudian hitunglah :</p>
<p>a.<i>f’</i>(1.3)</p>
<p>b.<i>f’</i>(2,5)</p>
<p>c.<i>f’</i>(1.7)</p>
<p>Jawab :</p>
<table width="248">
<tbody>
<tr>
<td width="98"><b><i>x</i></b></td>
<td width="150"><b><i>f(x)</i></b></td>
</tr>
<tr>
<td width="98">1.3</td>
<td width="150">-4.78070</td>
</tr>
<tr>
<td width="98">1.5</td>
<td width="150">-6.76831</td>
</tr>
<tr>
<td width="98">1.7</td>
<td width="150">&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</td>
</tr>
<tr>
<td width="98">1.9</td>
<td width="150">&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</td>
</tr>
<tr>
<td width="98">2.1</td>
<td width="150">&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</td>
</tr>
<tr>
<td width="98">2.3</td>
<td width="150">&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</td>
</tr>
<tr>
<td width="98">2.5</td>
<td width="150">&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</td>
</tr>
</tbody>
</table>
<p>&nbsp;</p>
<ol>
<li>Untuk menghitung <i>f’</i>(1.3) gunakan rumus hampiran selisih maju, sebab <i>x </i>= 1.3 hanya mempunyai titik-titik sesudahnya, tetapi tidak memiliki titik-titik sebelumnya, sehingga :</li>
</ol>
<p><img data-recalc-dims="1" decoding="async" class="aligncenter size-full wp-image-506" src="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_2-4.jpg?resize=349%2C242&#038;ssl=1" alt="" width="349" height="242" srcset="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_2-4.jpg?w=349&amp;ssl=1 349w, https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_2-4.jpg?resize=300%2C208&amp;ssl=1 300w" sizes="(max-width: 349px) 100vw, 349px" /></p>
<p><a href="https://ramzilhuda.com/metode-numerik-sumber-utama-galat-numerik/">Galat</a> : |9.33070| &#8211; |9.93805|=-0.60735</p>
<p>terletak diantara -0.63307 dan -0.55183</p>
<ol start="2">
<li>Untuk menghitung nilai <i>f’</i>(2.5) digunakan rumus hampiran selisih mundur, sebab <i>x </i>= 2.5, hanya mempunyai titik-titik sebelumnya (mundur), sehingga :</li>
</ol>
<p><img data-recalc-dims="1" decoding="async" class="aligncenter size-full wp-image-507" src="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_3-4.jpg?resize=444%2C148&#038;ssl=1" alt="" width="444" height="148" srcset="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_3-4.jpg?w=444&amp;ssl=1 444w, https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_3-4.jpg?resize=300%2C100&amp;ssl=1 300w" sizes="(max-width: 444px) 100vw, 444px" /></p>
<p>3. Untuk menghitung nilai <i>f’</i>(1.7) dapat mengunakan semua rumus hampiran</p>
<p><img data-recalc-dims="1" loading="lazy" decoding="async" class="aligncenter size-full wp-image-508" src="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_4-4.jpg?resize=494%2C174&#038;ssl=1" alt="" width="494" height="174" srcset="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_4-4.jpg?w=494&amp;ssl=1 494w, https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_4-4.jpg?resize=300%2C106&amp;ssl=1 300w" sizes="auto, (max-width: 494px) 100vw, 494px" /></p>
<p>Galat terletak diantara :</p>
<p>&#8211; Dengan hampiran selisih mundur</p>
<p><img data-recalc-dims="1" loading="lazy" decoding="async" class="aligncenter size-full wp-image-509" src="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_5-4.jpg?resize=349%2C155&#038;ssl=1" alt="" width="349" height="155" srcset="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_5-4.jpg?w=349&amp;ssl=1 349w, https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_5-4.jpg?resize=300%2C133&amp;ssl=1 300w" sizes="auto, (max-width: 349px) 100vw, 349px" /></p>
<p>Galat terletak diantara :</p>
<p>&#8211; Dengan hampiran selisih pusat</p>
<p><img data-recalc-dims="1" loading="lazy" decoding="async" class="aligncenter size-full wp-image-510" src="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_6-4.jpg?resize=328%2C144&#038;ssl=1" alt="" width="328" height="144" srcset="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_6-4.jpg?w=328&amp;ssl=1 328w, https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_6-4.jpg?resize=300%2C132&amp;ssl=1 300w" sizes="auto, (max-width: 328px) 100vw, 328px" /></p>
<p>Galat terletak diantara :</p>
<p>Pendekatan untuk turunan ke-2 fungsi</p>
<p>-&gt; menggunakan 3 titik data yaitu :</p>
<p><img data-recalc-dims="1" loading="lazy" decoding="async" class="aligncenter size-full wp-image-511" src="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_7-4.jpg?resize=465%2C229&#038;ssl=1" alt="" width="465" height="229" srcset="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_7-4.jpg?w=465&amp;ssl=1 465w, https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_7-4.jpg?resize=300%2C148&amp;ssl=1 300w" sizes="auto, (max-width: 465px) 100vw, 465px" /></p>
<p><b>Latihan</b></p>
<p>Definisikan fungsi</p>
<p><img data-recalc-dims="1" loading="lazy" decoding="async" class="aligncenter size-full wp-image-512" src="https://i0.wp.com/ramzilhuda.com/wp-content/uploads/2021/11/Screenshot_8-5.jpg?resize=111%2C61&#038;ssl=1" alt="" width="111" height="61" /></p>
<p>dalam selang [1.5 , 2.5] dengan <i>h</i> = 0.2 kemudian tentukan nilai turunan fungsi hampiran dan bandingkan dengan nilai turunan fungsi sejatinya pada setiap nilai <i>x</i> !</p>
<table width="308">
<tbody>
<tr>
<td width="128"><b>x</b></td>
<td width="180"><b>f(x)</b></td>
</tr>
<tr>
<td width="128">1.5</td>
<td width="180"></td>
</tr>
<tr>
<td width="128">1.7</td>
<td width="180"></td>
</tr>
<tr>
<td width="128">1.9</td>
<td width="180"></td>
</tr>
<tr>
<td width="128">2.1</td>
<td width="180"></td>
</tr>
<tr>
<td width="128">2.3</td>
<td width="180"></td>
</tr>
<tr>
<td width="128">2.5</td>
<td width="180"></td>
</tr>
</tbody>
</table>
<p>Teman &#8211; teman juga bisa belajar pada video tutorial di <a href="https://www.youtube.com/watch?v=JO2ZVa4r4VM">ini</a></p>
<p>&nbsp;</p>
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