63 lines
3.8 KiB
HTML
63 lines
3.8 KiB
HTML
<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
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<TITLE>CLHS: Function SIN, COS, TAN</TITLE>
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<A NAME="sin"><A NAME="cos"><A NAME="tan"><I>Function</I> <B>SIN, COS, TAN</B></A></A></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>sin</B> <I>radians</I> => <I>number</I><P>
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<B>cos</B> <I>radians</I> => <I>number</I><P>
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<B>tan</B> <I>radians</I> => <I>number</I><P>
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<P>
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<P><B>Arguments and Values:</B><P>
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<P>
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<I>radians</I>---a <A REL=DEFINITION HREF="26_glo_n.htm#number"><I>number</I></A> given in radians. <P>
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<I>number</I>---a <A REL=DEFINITION HREF="26_glo_n.htm#number"><I>number</I></A>. <P>
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<P><B>Description:</B><P>
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<P>
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<A REL=DEFINITION HREF="#sin"><B>sin</B></A>, <A REL=DEFINITION HREF="#cos"><B>cos</B></A>, and <A REL=DEFINITION HREF="#tan"><B>tan</B></A> return the sine, cosine, and tangent, respectively, of <I>radians</I>. <P>
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<P><B>Examples:</B><P>
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<P>
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<PRE>
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(sin 0) => 0.0
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(cos 0.7853982) => 0.707107
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(tan #c(0 1)) => #C(0.0 0.761594)
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</PRE>
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</TT> <P>
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<P><B>Side Effects:</B> None.
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<P>
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<P><B>Affected By:</B> None.
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<P>
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<P><B>Exceptional Situations:</B><P>
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<P>
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Should signal an error of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="e_tp_err.htm#type-error"><B>type-error</B></A> if <I>radians</I> is not a <A REL=DEFINITION HREF="26_glo_n.htm#number"><I>number</I></A>. Might signal <A REL=DEFINITION HREF="e_arithm.htm#arithmetic-error"><B>arithmetic-error</B></A>. <P>
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<P><B>See Also:</B><P>
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<P>
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<A REL=DEFINITION HREF="f_asin_.htm#asin"><B>asin</B></A>, <A REL=DEFINITION HREF="f_asin_.htm#acos"><B>acos</B></A>, <A REL=DEFINITION HREF="f_asin_.htm#atan"><B>atan</B></A>, <A REL=CHILD HREF="12_acc.htm">Section 12.1.3.3 (Rule of Float Substitutability)</A> <P>
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<P><B>Notes:</B> None.
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