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The conversion to metric units, to two decimal 0132 places, is 1point = 2.85mm = 28.45cm. 0133 </p> 0134 </dd> 0135 <dt><code>pc</code></dt> 0136 <dd><a name="index-pica"></a> 0137 <a name="index-pc"></a> 0138 <a name="units-of-length-pc"></a><p>Pica, 12 pt 0139 </p> 0140 </dd> 0141 <dt><code>in</code></dt> 0142 <dd><a name="index-in"></a> 0143 <a name="index-inch"></a> 0144 <a name="units-of-length-in"></a><p>Inch, 72.27 pt 0145 </p> 0146 </dd> 0147 <dt><code>bp</code></dt> 0148 <dd><a name="index-bp"></a> 0149 <a name="index-Big-point"></a> 0150 <a name="units-of-length-bp"></a><p>Big point, 1/72 inch. This length is the definition of a point in 0151 PostScript and many desktop publishing systems. 0152 </p> 0153 </dd> 0154 <dt><code>cm</code></dt> 0155 <dd><a name="index-Centimeter"></a> 0156 <a name="index-cm"></a> 0157 <a name="units-of-length-cm"></a><p>Centimeter 0158 </p> 0159 </dd> 0160 <dt><code>mm</code></dt> 0161 <dd><a name="index-Millimeter"></a> 0162 <a name="index-mm"></a> 0163 <a name="units-of-length-mm"></a><p>Millimeter 0164 </p> 0165 </dd> 0166 <dt><code>dd</code></dt> 0167 <dd><a name="index-Didot-point"></a> 0168 <a name="index-dd"></a> 0169 <a name="units-of-length-dd"></a><p>Didot point, 1.07 pt 0170 </p> 0171 </dd> 0172 <dt><code>cc</code></dt> 0173 <dd><a name="index-Cicero"></a> 0174 <a name="index-cc"></a> 0175 <a name="units-of-length-cc"></a><p>Cicero, 12 dd 0176 </p> 0177 </dd> 0178 <dt><code>sp</code></dt> 0179 <dd><a name="index-Scaled-point"></a> 0180 <a name="index-sp"></a> 0181 <a name="units-of-length-sp"></a><p>Scaled point, 1/65536 pt 0182 </p> 0183 </dd> 0184 </dl> 0185 0186 <a name="index-ex"></a> 0187 <a name="index-x_002dheight"></a> 0188 <a name="index-ex-1"></a> 0189 <a name="index-m_002dwidth"></a> 0190 <a name="index-em"></a> 0191 <a name="index-em-1"></a> 0192 <a name="Lengths_002fem"></a><a name="Lengths_002fen"></a><a name="Lengths_002fex"></a><a name="units-of-length-em"></a><a name="units-of-length-en"></a><a name="units-of-length-ex"></a><p>Two other lengths that are often used are values set by the designer of 0193 the font. The x-height of the current font <em>ex</em>, traditionally the 0194 height of the lowercase letter x, is often used for vertical 0195 lengths. Similarly <em>em</em>, traditionally the width of the capital 0196 letter M, is often used for horizontal lengths (there is also 0197 <code>\enspace</code>, which is <code>0.5em</code>). Use of these can help make a 0198 definition work better across font changes. For example, a definition 0199 of the vertical space between list items given as 0200 <code>\setlength{\itemsep}{1ex plus 0.05ex minus 0.01ex}</code> is more 0201 likely to still be reasonable if the font is changed than a definition 0202 given in points. 0203 </p> 0204 <a name="index-mu_002c-math-unit"></a> 0205 <a name="index-mu"></a> 0206 <p>In math mode, many definitions are expressed in terms of the math unit 0207 <em>mu</em> given by 1 em = 18 mu, where the em is taken from the current 0208 math symbols family. See <a href="Spacing-in-math-mode.html#Spacing-in-math-mode">Spacing in math mode</a>. 0209 </p> 0210 0211 0212 0213 <hr/><div class='referenceinfo'> <a href='https://latexref.xyz/'> <i>Unofficial LaTeX2e reference manual</i></a></div> 0214 </body> 0215 </html>