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<h1 id="hd_id3150342" dir="auto">Unary/Binary Operators</h1>
<p id="par_id3151241" class="paragraph" dir="auto">You can choose various unary and binary operators to build your LibreOffice Math formula. Unary refers to operators that affect one placeholder. Binary refers to operators that connect two placeholders. The lower area of the Elements pane displays the individual operators. The <a target="_top" href="en-US/text/shared/00/00000001.html#contextmenu">context menu</a> of the <span class="emph">Commands</span> window also contains a list of these operators, as well as additional operators. If you need an operator that is not contained in the Elements pane, use the context menu or type it directly in the <span class="emph">Commands</span> window.</p>
<a name="howtoget"></a><div class="howtoget">
<div><p class="howtogetheader" dir="auto"><a name="wie"></a>To access this command...</p></div>
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<a name="unary_binary"></a>
<p id="par_id3152942" class="paragraph" dir="auto">Open the context menu in the Commands window - choose <span class="emph">Unary/Binary Operators</span>
</p>
<p id="par_id3154106" class="paragraph" dir="auto">Choose <span class="emph">View - Elements</span>; then on the Elements pane select <span class="emph">Unary/Binary Operators</span> from the listbox.</p>
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<p id="par_id3146963" class="paragraph" dir="auto">The following is a complete list of the unary and binary operators. The symbol next to the operator indicates that it can be accessed through the Elements pane (choose <span class="emph">View - Elements</span>) or through the context menu of the Commands window.</p>
<h2 id="hd_id3147405" dir="auto">Unary and Binary Operators</h2>
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<div class="iconcell">
<p id="par_idN10085" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21201.svg" class="genericimage" alt="Plus Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
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<p id="par_id3154555" class="tableheadintable" dir="auto">Plus</p>
<p id="par_id3153003" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">plus</span> with one placeholder.</span> You can also type <span class="emph">+ <?></span> in the <span class="emph">Commands</span> window.</p>
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</div>
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<div class="iconcell">
<p id="par_idN100C1" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21202.svg" class="genericimage" alt="Minus Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3155374"></a>
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<p id="par_id3155991" class="tableheadintable" dir="auto">Minus</p>
<p id="par_id3153717" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">minus</span> with one placeholder.</span> You can also type <span class="emph">-<?></span> in the <span class="emph">Commands</span> window.</p>
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<div class="iconcell">
<p id="par_idN100FD" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21203.svg" class="genericimage" alt="Plus/Minus Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3153623"></a>
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<div class="iconcell">
<p id="par_id3153150" class="tableheadintable" dir="auto">Plus/Minus</p>
<p id="par_id3150260" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">plus/minus</span> with one placeholder.</span> You can also type <span class="emph">+-<?></span> in the <span class="emph">Commands</span> window.</p>
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<div class="iconcell">
<p id="par_idN10139" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21204.svg" class="genericimage" alt="Minus/Plus Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3153573"></a>
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<p id="par_id3153582" class="tableheadintable" dir="auto">Minus/Plus</p>
<p id="par_id3154281" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">minus/plus</span> with one placeholder.</span> You can also type <span class="emph">-+<?></span> in the <span class="emph">Commands</span> window.</p>
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<div class="iconcell">
<p id="par_idN10175" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21205.svg" class="genericimage" alt="Addition (plus) Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3154571"></a>
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<div class="iconcell">
<p id="par_id3153669" class="tableheadintable" dir="auto">Addition (plus)</p>
<p id="par_id3150351" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">plus</span> with two placeholders.</span> You can also type <span class="emph"><?>+<?></span> in the Commands window.</p>
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<div class="iconcell">
<p id="par_idN101B0" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21206.svg" class="genericimage" alt="Multiplication (dot) Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3149334"></a>
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<div class="iconcell">
<p id="par_id3149343" class="tableheadintable" dir="auto">Multiplication (dot)</p>
<p id="par_id3154196" class="paragraphintable" dir="auto"><span class="avis">Inserts a dot operator with two placeholders.</span> You can also type <span class="emph"><?>cdot<?></span> in the <span class="emph">Commands</span> window.</p>
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</div>
<div class="icontable">
<div class="iconcell">
<p id="par_idN101E9" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21207.svg" class="genericimage" alt="Multiplication (x) Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3151248"></a>
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<div class="iconcell">
<p id="par_id3151257" class="tableheadintable" dir="auto">Multiplication (x)</p>
<p id="par_id3149821" class="paragraphintable" dir="auto"><span class="avis">Inserts an 'x' <span class="emph">multiplication</span> with two placeholders.</span> You can also type <span class="emph"><?>times<?></span> in the <span class="emph">Commands</span> window.</p>
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</div>
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<div class="iconcell">
<p id="par_idN10226" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21208.svg" class="genericimage" alt="Multiplication (*) Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3159477"></a>
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<div class="iconcell">
<p id="par_id3159486" class="tableheadintable" dir="auto">Multiplication (*)</p>
<p id="par_id3149040" class="paragraphintable" dir="auto"><span class="avis">Inserts an asterisk multiplication sign with two placeholders. </span> You can also type <span class="emph"><?>*<?></span> in the <span class="emph">Commands</span> window.</p>
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</div>
<div class="icontable">
<div class="iconcell">
<p id="par_idN1025F" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21209.svg" class="genericimage" alt="Subtraction Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3147078"></a>
</div>
<div class="iconcell">
<p id="par_id3147124" class="tableheadintable" dir="auto">Subtraction</p>
<p id="par_id3147136" class="paragraphintable" dir="auto"><span class="avis">Inserts a subtraction sign with two placeholders.</span> You can also type <span class="emph"><?>-<?></span> in the <span class="emph">Commands</span> window.</p>
</div>
</div>
<div class="icontable">
<div class="iconcell">
<p id="par_idN10298" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21210.svg" class="genericimage" alt="Division (Fraction) Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3154916"></a>
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<div class="iconcell">
<p id="par_id3154926" class="tableheadintable" dir="auto">Division (Fraction)</p>
<p id="par_id3155125" class="paragraphintable" dir="auto"><span class="avis">Inserts a fraction with two placeholders.</span> You can also type <span class="emph"><?>over<?></span> in the <span class="emph">Commands</span> window.</p>
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</div>
<div class="icontable">
<div class="iconcell">
<p id="par_idN102D1" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21211.svg" class="genericimage" alt="Division Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3155910"></a>
</div>
<div class="iconcell">
<p id="par_id3151377" class="tableheadintable" dir="auto">Division</p>
<p id="par_id3149536" class="paragraphintable" dir="auto"><span class="avis">Inserts a division sign with two placeholders.</span> You can also type <span class="emph"><?>div<?></span> in the <span class="emph">Commands</span> window.</p>
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<div class="iconcell">
<p id="par_idN1030A" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21212.svg" class="genericimage" alt="Division (Slash) Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3147619"></a>
</div>
<div class="iconcell">
<p id="par_id3147487" class="tableheadintable" dir="auto">Division (Slash)</p>
<p id="par_id3147500" class="paragraphintable" dir="auto"><span class="avis">Inserts a slash '/' with two placeholders. </span> You can also type <span class="emph"><?>/<?></span> in the <span class="emph">Commands</span> window.</p>
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</div>
<div class="icontable">
<div class="iconcell">
<p id="par_idN10343" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21213.svg" class="genericimage" alt="Boolean NOT Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3150557"></a>
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<div class="iconcell">
<p id="par_id3153493" class="tableheadintable" dir="auto">Boolean NOT</p>
<p id="par_id3153505" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">Boolean NOT</span> with one placeholder.</span> You can also type <span class="emph">neg<?></span> in the <span class="emph">Commands</span> window.</p>
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</div>
<div class="icontable">
<div class="iconcell">
<p id="par_idN10383" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21214.svg" class="genericimage" alt="Boolean AND Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3149837"></a>
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<p id="par_id3149847" class="tableheadintable" dir="auto">Boolean AND</p>
<p id="par_id3147599" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">Boolean AND</span> with two placeholders.</span> You can also type <span class="emph"><?>and<?></span> in the <span class="emph">Commands</span> window.</p>
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<div class="icontable">
<div class="iconcell">
<p id="par_idN103C3" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21215.svg" class="genericimage" alt="Boolean OR Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3151077"></a>
</div>
<div class="iconcell">
<p id="par_id3151086" class="tableheadintable" dir="auto">Boolean OR</p>
<p id="par_id3154076" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">Boolean OR</span> with two placeholders.</span> You can also type <span class="emph"><?>or<?></span> in the <span class="emph">Commands</span> window.</p>
</div>
</div>
<div class="icontable">
<div class="iconcell">
<p id="par_idN10403" class="paragraphintable" dir="auto">
<img src="media/helpimg/starmath/un21221.svg" class="genericimage" alt="Concatenate Icon" style="width:38px;height:38px" itemprop="image" itemscope="true" itemtype="http://schema.org/ImageObject"></p>
<a name="bm_id3151120"></a>
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<div class="iconcell">
<p id="par_id3151129" class="tableheadintable" dir="auto">Concatenate</p>
<p id="par_id3156102" class="paragraphintable" dir="auto"><span class="avis">Inserts a <span class="emph">concatenation sign</span> with two placeholders. </span> You can also type <span class="emph">circ</span> in the <span class="emph">Commands</span> window.</p>
</div>
</div>
<p id="par_id3150464" class="paragraph" dir="auto">You can also insert user-defined unary operators by typing <span class="emph">uoper</span> in the <span class="emph">Commands</span> window, followed by the syntax for the character. This function is useful for incorporating special characters into a formula. For example, the command <span class="emph">uoper %theta x</span> produces a small Greek letter theta (a component of the <span class="emph">LibreOffice Math</span> character set). You can also insert characters not in the LibreOffice character set by choosing <span class="emph">Tools - Symbols - Edit</span>.</p>
<p id="par_id3154725" class="paragraph" dir="auto"> You can also insert user-defined binary commands by typing <span class="emph">boper</span> into the <span class="emph">Commands</span> window. For example, the command <span class="emph">y boper %theta x</span> produces the small Greek letter theta preceded by a <span class="emph">y</span> and followed by an <span class="emph">x</span>. You can also insert characters not in the LibreOffice character set by choosing <span class="emph">Tools - Symbols - Edit</span>.</p>
<p id="par_id3150906" class="paragraph" dir="auto">By typing <span class="emph"><?>oplus<?></span> in the <span class="emph">Commands</span> window, you insert a <span class="emph">circled plus operator</span> in your document.</p>
<p id="par_id3151197" class="paragraph" dir="auto">Type <span class="emph"><?>ominus<?></span> in the <span class="emph">Commands</span> window to insert a <span class="emph">circled minus operator</span>.</p>
<p id="par_id3155082" class="paragraph" dir="auto">Type <span class="emph"><?>odot<?></span> in the <span class="emph">Commands</span> window to insert a <span class="emph">circled dot operator</span> in the formula.</p>
<p id="par_id3154331" class="paragraph" dir="auto">Type <span class="emph"><?>odivide<?></span> in the <span class="emph">Commands</span> window to insert a <span class="emph">circled division operator</span> in the formula.</p>
<a name="bm_id3150101"></a>
<p id="par_id3150089" class="paragraph" dir="auto"><span class="avis">Type <span class="emph">a wideslash b</span> in the <span class="emph">Commands</span> window to produce two characters with a slash (from lower left to upper right) between them.</span> The characters are set such that everything to the left of the slash is up, and everything to the right is down. This command is also available in the context menu of the <span class="emph">Commands</span> window.</p>
<a name="bm_id3150035"></a>
<p id="par_id3150024" class="paragraph" dir="auto"><span class="avis">Type <span class="emph">a widebslash b</span> in the <span class="emph">Commands</span> window to produce two characters with a slash (from upper left to lower right) between them.</span> The characters are set such that everything to the left of the slash is down, and everything to the right is up. This command is also available in the context menu of the <span class="emph">Commands</span> window.</p>
<p id="par_id3149376" class="paragraph" dir="auto">Type <span class="emph">sub</span> or <span class="emph">sup</span> in the Commands window to add indexes and powers to the characters in your formula; for example, a sub 2.</p>
<div class="tip">
<div class="noteicon" dir="auto"><img src="media/icon-themes/res/helpimg/tip.svg" alt="Tip Icon
" style="width:40px;height:40px;"></div>
<div class="notetext"><p dir="auto">If you want to use a colon ':' as division sign, choose <span class="emph">Tools - Symbols</span> or click the <span class="emph">Symbols</span> icon on the Tools bar. Click the <span class="emph">Edit</span> button in the dialog that appears, then select the <span class="emph">Special</span> symbol set. Enter a meaningful name next to <span class="emph">Symbol</span>, for example, "divide" and then click the colon in the set of symbols. Click <span class="emph">Add</span> and then <span class="emph">OK</span>. Click <span class="emph">OK</span> to close the <span class="emph">Symbols</span> dialog,too. Now you can use the new symbol, in this case the colon, by entering its name in the Commands window, for example, <span class="emph">a %divide b = c</span>.</p></div>
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<div class="noteicon" dir="auto"><img src="media/icon-themes/res/helpimg/warning.svg" alt="Warning Icon
" style="width:40px;height:40px;"></div>
<div class="notetext"><p dir="auto">When entering information manually in the Commands window, please note that a number of operators require spaces between the elements for the correct structure. This is especially true if you are using values instead of placeholders in your operators, for example, to construct a division 4 div 3 or a div b.</p></div>
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