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<TITLE> While °j°é </TITLE>
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<FONT COLOR="#0000FF">4.8.2 While °j°é</FONT></H1>
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<BR><FONT COLOR="#FF0000">while</FONT> °j°é¬O¥Î¦b·íº¡¨¬¬Y¨Ç±ø¥ó«h­«½Æ°õ¦æªººâ¦¡¡A¥¦ªºµ²ºc¦p¤U¡G
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<BR><FONT COLOR="#FF0000">while expression</FONT>
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<BR><FONT COLOR="#FF0000">command group A</FONT>
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<BR><FONT COLOR="#FF0000">end</FONT>
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<BR>¨Ò¦p¡G
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<BR><FONT COLOR="#FF0000">sum = 0;</FONT>
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<BR><FONT COLOR="#FF0000">k = 1;</FONT>
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<BR><FONT COLOR="#FF0000">while x(k) >= 0 & k <= length(k)</FONT>
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<BR><FONT COLOR="#FF0000">sum = sum + x(k);</FONT>
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<BR><FONT COLOR="#FF0000">k = k+1;</FONT>
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<BR><FONT COLOR="#FF0000">end</FONT>
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<BR>¶·ª`·Nªº¬O¦b³]©w±ø¥ó®É­n¦Ò¼{¶g¥þ¡A§_«h·|²£¥ÍµLªkµ²§ôªº°j°é¡C
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<BR>¦¹¥~ÁÙ¦³¤@­Ó
<FONT COLOR="#FF0000">break</FONT> ªº«ü¥O¡A¬O¥Î¨Ó¸õ¥X°j°é¡A¥i¥H¥Î¦b¤W­zªº
<FONT COLOR="#FF0000">for, while</FONT> ªºµ²ºc¤¤¡C¨Ò¦p¡G
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<BR><FONT COLOR="#FF0000">>> num=0; EPS=1; % ³o­Ó¨Ò¤l¬O§ä¥XMATLAB¥i­pºâ¨ì³Ì¤pªº¥¿­È</FONT>
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<BR><FONT COLOR="#FF0000">>> for num=1:1000 % EPS±q1­pºâ°_¡A¹w³]­n­pºâ¦¸¼Ænum¬°
1000</FONT>
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<BR><FONT COLOR="#FF0000">EPS=EPS/2; % ¨C¦¸±NEPS´î¤Ö¤@¥b</FONT>
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<BR><FONT COLOR="#FF0000">if (1+EPS) <= 1 % ­pºâ¨ì³Ì«áª½¨ìEPS¤Ó¤p¨Ï±o
1+EPS ¤p©óµ¥©ó 1</FONT>
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<BR><FONT COLOR="#FF0000">break % ¦pªGº¡¨¬¤W­z±ø¥ó§Y¸õ¥X°j°é</FONT>
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<BR><FONT COLOR="#FF0000">end</FONT>
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<BR><FONT COLOR="#FF0000">end</FONT>
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<BR><FONT COLOR="#FF0000">>> EPS, num</FONT>
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<BR><FONT COLOR="#FF0000">>> EPS =</FONT>
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<BR><FONT COLOR="#FF0000">1.1102e-016</FONT>
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<BR><FONT COLOR="#FF0000">>> num =</FONT>
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<BR><FONT COLOR="#FF0000">53
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