slide0044.htm

一些算法小技巧 有利于学习C语言 在C语言和JAVA中都可以用的

 宋体;font-size:75%;color:yellow;mso-ansi-language:EN-US'><b>2）两边同除以x</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:50%;
 color:yellow;position:relative;top:-.45em;mso-text-raise:30%;mso-fareast-language:
 ZH-CN'><b>(n-k)</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:75%;color:yellow;mso-fareast-language:ZH-CN'><b><span
 style="mso-spacerun: yes">&nbsp;</span>，并移到左端得：&#13;</b></span></div>
 <div style='mso-line-spacing:"90 20 0";position:absolute;top:63.25%;
 left:13.48%;width:96.25%;height:5.25%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:75%;mso-ansi-language:EN-US'><b><span style='mso-tab-count:1;
 width:3.89%'> </span> x</b></span><span lang=EN-US style='font-family:宋体;
 mso-ascii-font-family:宋体;font-size:50%;position:relative;top:-.45em;
 mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>k </b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:75%;
 mso-fareast-language:ZH-CN'><b>= a</b></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:50%;position:relative;
 top:.37em;mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>1</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:75%;
 mso-fareast-language:ZH-CN'><b>x</b></span><span lang=EN-US style='font-family:
 宋体;mso-ascii-font-family:宋体;font-size:50%;position:relative;top:-.45em;
 mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>(k-1)</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:75%;
 mso-fareast-language:ZH-CN'><b>+ a</b></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:50%;position:relative;
 top:.37em;mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>2</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:75%;
 mso-fareast-language:ZH-CN'><b>x</b></span><span lang=EN-US style='font-family:
 宋体;mso-ascii-font-family:宋体;font-size:50%;position:relative;top:-.45em;
 mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>(k-2)</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:75%;
 mso-fareast-language:ZH-CN'><b>+</b></span><span lang=EN-US style='font-family:
 "Times New Roman";mso-ascii-font-family:宋体;mso-hansi-font-family:"Times New Roman";
 font-size:75%;mso-fareast-language:ZH-CN'><b>…</b></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:75%;mso-fareast-language:
 ZH-CN'><b>+a</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:50%;position:relative;top:.37em;mso-text-raise:-25%;mso-fareast-language:
 ZH-CN'><b>k<span style='mso-tab-count:2;width:14.64%'> </span></b></span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:宋体;
 mso-hansi-font-family:"Times New Roman";font-size:75%;mso-fareast-language:
 ZH-CN'><b>……</b></span><span lang=ZH-CN style='mso-ascii-font-family:宋体;
 font-size:75%;color:yellow;mso-ansi-language:EN-US'><b>特征方程&#13;</b></span></div>
 <div style='mso-line-spacing:"90 20 0";position:absolute;top:69.5%;left:13.48%;
 width:81.46%;height:4.75%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:75%;color:yellow;mso-ansi-language:EN-US'><b>3）求出方程得根得递归方程通解&#13;</b></span></div>
 <div style='mso-line-spacing:"90 20 0";position:absolute;top:75.75%;
 left:13.48%;width:81.46%;height:6.25%'><span style='position:absolute;
 top:0%;left:4.59%;width:95.4%'><span style='color:yellow'><span
 style='mso-special-format:bullet;color:#FFCC66;mso-color-index:3;position:
 absolute;left:-4.81%;top:.1em;font-family:Symbol;font-size:90%'>¨</span></span><span
 lang=ZH-CN style='color:yellow;mso-ansi-language:EN-US'>解情况的讨论：&#13;</span></span></div>
 <div style='mso-line-spacing:"90 20 0";position:absolute;top:82.75%;
 left:13.48%;width:96.06%;height:5.25%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";font-size:75%;mso-ansi-language:EN-US'><span
 style='mso-tab-count:1;width:3.9%'> </span>1</span><span lang=ZH-CN
 style='font-size:75%;mso-ansi-language:EN-US'>、</span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;color:yellow;mso-fareast-language:ZH-CN'>k</span><span
 lang=ZH-CN style='font-size:75%;color:yellow;mso-ansi-language:EN-US'>个根互不相同：</span><span
 lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;mso-ansi-language:EN-US'><span style='mso-tab-count:1;
 width:6.5%'> </span> </span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:63%;mso-fareast-language:ZH-CN'><b>f(n) = c</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:.37em;mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>1</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b>q</b></span><span lang=EN-US style='font-family:
 宋体;mso-ascii-font-family:宋体;font-size:41%;position:relative;top:.37em;
 mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>1</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:-.45em;mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>n</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b><span style="mso-spacerun: yes">&nbsp;</span>+
 c</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;
 font-size:41%;position:relative;top:.37em;mso-text-raise:-25%;mso-fareast-language:
 ZH-CN'><b>2</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:63%;mso-fareast-language:ZH-CN'><b>q</b></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;position:relative;
 top:.37em;mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>2</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:-.45em;mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>n</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b><span style="mso-spacerun: yes">&nbsp;</span>+</b></span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:宋体;
 mso-hansi-font-family:"Times New Roman";font-size:63%;mso-fareast-language:
 ZH-CN'><b>…</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:63%;mso-fareast-language:ZH-CN'><b>+ c</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:.37em;mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>k</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b>q</b></span><span lang=EN-US style='font-family:
 宋体;mso-ascii-font-family:宋体;font-size:41%;position:relative;top:.37em;
 mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>k</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:-.45em;mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>n</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b><span style="mso-spacerun: yes">&nbsp;</span></b></span><span
 lang=ZH-CN style='font-size:75%;mso-ansi-language:EN-US;display:none'>&#13;</span></div>
 <div style='mso-line-spacing:"90 20 0";position:absolute;top:88.5%;left:13.48%;
 width:81.46%;height:5.25%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";font-size:75%;mso-ansi-language:EN-US'><span
 style='mso-tab-count:1;width:4.6%'> </span>2</span><span lang=ZH-CN
 style='font-size:75%;mso-ansi-language:EN-US'>、</span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;color:yellow;mso-fareast-language:ZH-CN'>k</span><span
 lang=ZH-CN style='font-size:75%;color:yellow;mso-ansi-language:EN-US'>个根有</span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;color:yellow;mso-fareast-language:ZH-CN'>r</span><span
 lang=ZH-CN style='font-size:75%;color:yellow;mso-ansi-language:EN-US'>个重根：</span><span
 lang=ZH-CN style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
 font-size:75%;mso-ansi-language:EN-US'><span style='mso-tab-count:1;
 width:6.3%'> </span> &#13;</span></div>
 <div style='mso-line-spacing:"90 20 0";position:absolute;top:94.5%;left:13.48%;
 width:93.07%;height:5.25%'><span style='mso-special-format:nobullet;
 display:none;color:#FFCC66;mso-color-index:3;font-family:Symbol;font-size:
 90%'>¨</span><span lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:
 "Times New Roman";font-size:75%;mso-fareast-language:ZH-CN'><span
 style='mso-tab-count:1;width:4.02%'> </span></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;mso-fareast-language:
 ZH-CN'><b>f(n) = c</b></span><span lang=EN-US style='font-family:宋体;
 mso-ascii-font-family:宋体;font-size:41%;position:relative;top:.37em;mso-text-raise:
 -25%;mso-fareast-language:ZH-CN'><b>1</b></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;mso-fareast-language:
 ZH-CN'><b>q</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:41%;position:relative;top:.37em;mso-text-raise:-25%;mso-fareast-language:
 ZH-CN'><b>1</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:41%;position:relative;top:-.45em;mso-text-raise:30%;mso-fareast-language:
 ZH-CN'><b>n</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:63%;mso-fareast-language:ZH-CN'><b><span style="mso-spacerun:
 yes">&nbsp;</span>+</b></span><span lang=EN-US style='font-family:"Times New Roman";
 mso-ascii-font-family:宋体;mso-hansi-font-family:"Times New Roman";font-size:
 63%;mso-fareast-language:ZH-CN'><b>…</b></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;mso-fareast-language:
 ZH-CN'><b>+ c</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:41%;position:relative;top:.37em;mso-text-raise:-25%;mso-fareast-language:
 ZH-CN'><b>i</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:63%;mso-fareast-language:ZH-CN'><b>q</b></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;position:relative;
 top:.37em;mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>i</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:-.45em;mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>n</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b><span style="mso-spacerun: yes">&nbsp;</span>+
 (c</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:41%;position:relative;top:.37em;mso-text-raise:-25%;mso-fareast-language:
 ZH-CN'><b>i </b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:63%;mso-fareast-language:ZH-CN'><b>+</b></span><span lang=EN-US
 style='font-family:"Times New Roman";mso-ascii-font-family:宋体;mso-hansi-font-family:
 "Times New Roman";font-size:63%;mso-fareast-language:ZH-CN'><b>…</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b>+ c</b></span><span lang=EN-US
 style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;position:relative;
 top:.37em;mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>i+r-1</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b>n</b></span><span lang=EN-US style='font-family:
 宋体;mso-ascii-font-family:宋体;font-size:41%;position:relative;top:-.45em;
 mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>r-1</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b>)q</b></span><span lang=EN-US style='font-family:
 宋体;mso-ascii-font-family:宋体;font-size:41%;position:relative;top:.37em;
 mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>i</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:-.45em;mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>n</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b><span style="mso-spacerun: yes">&nbsp;</span>+</b></span><span
 lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:宋体;
 mso-hansi-font-family:"Times New Roman";font-size:63%;mso-fareast-language:
 ZH-CN'><b>…</b></span><span lang=EN-US style='font-family:宋体;mso-ascii-font-family:
 宋体;font-size:63%;mso-fareast-language:ZH-CN'><b>+ c</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:.37em;mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>k</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b>q</b></span><span lang=EN-US style='font-family:
 宋体;mso-ascii-font-family:宋体;font-size:41%;position:relative;top:.37em;
 mso-text-raise:-25%;mso-fareast-language:ZH-CN'><b>k</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:41%;
 position:relative;top:-.45em;mso-text-raise:30%;mso-fareast-language:ZH-CN'><b>n</b></span><span
 lang=EN-US style='font-family:宋体;mso-ascii-font-family:宋体;font-size:63%;
 mso-fareast-language:ZH-CN'><b><span style="mso-spacerun: yes">&nbsp;</span></b></span></div>
 </div>
</p:slide></div>

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