Arabic notation

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<blockquote class="wp-embedded-content"><a href="https://www.wiris.com/en/mathtype/arabic-mathematical-notations/">Arabic notation</a></blockquote>
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</script><iframe sandbox="allow-scripts" security="restricted" src="https://www.wiris.com/en/mathtype/arabic-mathematical-notations/embed/" width="600" height="400" title="&#8220;Arabic notation&#8221; &#8212; Wiris" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe>
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