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<h1><a href="start.html" accesskey="h" title="[H]"><img src="lib/tpl/dokuwiki/images/logo.png" width="64" height="64" alt="" /> <span>BASIC 256 - Language Documentation</span></a></h1>
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<h3 class="sectionedit1" id="tan">Tan</h3>
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<h4 id="формат">Формат:</h4>
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<p>
<strong>tan</strong>( выражение )
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<h4 id="описание">Описание:</h4>
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Вычисляет тангенс выражения. <em>Выражение</em> должно быть задано в радианах. Заметка: эта функция не дает точного результата.
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<h4 id="смотри_также">Смотри также:</h4>
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<a href="ru_acos.html" class="wikilink1" title="ru:acos">Acos</a>, <a href="ru_asin.html" class="wikilink1" title="ru:asin">Asin</a>, <a href="ru_atan.html" class="wikilink1" title="ru:atan">Atan</a>, <a href="ru_sin.html" class="wikilink1" title="ru:sin">Sin</a>, <a href="ru_cos.html" class="wikilink1" title="ru:cos">Cos</a>, <a href="ru_degrees.html" class="wikilink1" title="ru:degrees">Degrees</a>, <a href="ru_radians.html" class="wikilink1" title="ru:radians">Radians</a>
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<h4 id="пример">Пример:</h4>
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<pre class="code">clg
color black
# draw a line across the graphic output
line 0,150,300,150
# where do we start
lastx = 0
lasty = tan(0) * 50 + 150
# now step across the line and draw
for x = 0 to 300 step 5
angle = x / 300 * 2 * pi
y = tan(angle) * 50 + 150
line lastx, lasty, x, y
lastx = x
lasty = y
next x</pre>
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<a href="http://doc.basic256.org/lib/exe/detail.php?id=ru_tan&media=ru:tan.png" class="media wikilink2" title="ru:tan.png"><img src="lib/exe/ru_tan.png" class="media" title="Tan" alt="Tan" /></a>
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<div class="docInfo"><bdi>ru/tan.txt</bdi> · Last modified: 2011/03/29 11:56 (external edit)</div>
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