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  1. <center><h3>½»»¥Ê½Á·Ï°ÖеÄËæ»ú²ÎÊý</h3></center> <p>
  2.  
  3. ʹÓÃËæ»ú²ÎÊý¿ÉÒÔʹÄúµÄÁ·Ï°¸ü¼ÓÎüÒýÈË,
  4. ÒòΪÿ´Î³öÀ´µÄ¶¼ÊDz»Í¬µÄÁ·Ï°.
  5. <p>
  6. ÀýÈçÒÔÏÂÒ»ÐÐÃüÁÒåÁËÃûΪ <font color=blue><b>x1</b></font> µÄ²ÎÊý,
  7. ËüµÄÖµÊÇ -10 Óë 10 ¼äµÄËæ»úÕûÊý (°üÀ¨ -10 Óë 10):
  8. <pre>
  9. \integer{x1=random(-10..10)}
  10. </pre>
  11. ÒÔºóÔÚ³ÂÊö, »Ø´ð, ÌáʾÓë½âÖж¼¿ÉÒÔÓà <b><tt>\x1</tt></b> À´µ÷ÓôËËæ»ú²ÎÊý.
  12. Ò²¾ÍÊÇ˵Îı¾ÖÐµÄ <tt>\x1</tt> ÿ´Î¶¼±»²»Í¬µÄËæ»úÖµËùÈ¡´ú.
  13. ÕâÖÖÈ¡´úÒ²·¢ÉúÔÚÒÀÀµÓÚ x1 µÄÆäËû²ÎÊýµÄ¶¨ÒåÖÐ.
  14. <p>
  15. ÏÖÔÚ¼ÙÉèÄúÔÚ²ÎÊý¶¨ÒåµÄÀ¸Ä¿ÖÐÊäÈëÁË
  16. <pre>
  17. \integer{x1=random(-10..10)}
  18. \integer{y1=\x1+3}
  19. </pre>
  20. Á·Ï°µÄ³ÂÊöΪ
  21. <pre>
  22. ¼ÆËã \x1 Óë \y1 µÄ³Ë»ý.
  23. </pre>
  24. ¼Ù¶¨ÔÚÁ·Ï°µÄij¸öÇëÇóÖÐ \x1 ±»·ÖÅäÒ»¸öËæ»úÖµ <font color=red>-7</font>.
  25. ºóÒ»¸ö²ÎÊý \y1 ½«È¡Öµ -4, ¶øÇÒ´ËÁ·Ï°½«¾ßÓÐÐÎʽ <div class="wimscenter">¼ÆËã -7 Óë -4 ³Ë»ý.
  26. </div>
  27. ÄúÈ»ºó¿ÉÒÔ¶¨ÒåÃûΪ<b>³Ë»ý</b>µÄÊýÖµ»Ø´ðµÄÕýÈ·½âÊÇ
  28. <tt>(\x1)*(\y1)</tt>. (×¢ÒâÕâÀïµÄÀ¨ºÅÊDZØÒªµÄ, ÒòΪÌæ´úÍêÈ«ÊÇ°´×ÖÃæÒâÒåÖ´ÐеÄ.)
  29. <a name=list></a>
  30. !if oefparm isitemof $special_parm
  31.  !changeto help/oefparm.phtml
  32. !endif
  33. <p>$table_header
  34. <caption>²ÎÊýµÄһЩ±ðµÄÀý×Ó
  35. !href cmd=help&special_parm=$special_parm,oefparm#list [ÍêÕû±í¸ñ]
  36. </caption>
  37. $table_hdtr<th>¶¨Òå</th><th>Ч¹û</th></tr>
  38. $table_tr<td><tt>\real{x=random(-5..5)}</tt></td>
  39.     <td>\x ÊÇ -5 Óë 5 ¼äµÄËæ»úʵÊý</td></tr>
  40. $table_tr<td><tt>\real{a=random(-5,-3,0.3,4)}</tt></td>
  41.     <td>\a ÊÇÔÚ -5,-3,0.3,4 Ö®ÖÐËæ»úÑ¡È¡µÄʵÊý</td></tr>
  42. $table_tr<td><tt>\complex{z=(1+2*i)^3}</tt></td>
  43.     <td>\z ÊǸ´Êý (1+2*i)^3</td></tr>
  44. $table_tr<td><tt>\text{sign=random(+,-)}</tt></td>
  45.     <td>\sign ÊÇËæ»ú·ûºÅ: + »ò -</td></tr>
  46. $table_tr<td><tt>\integer{n=3*exp(\a)}</tt></td>
  47.     <td>\n ÊÇÓë 3*e<sup>\a</sup> ×î½Ó½üµÄÕûÊý (ËüÒÀÀµÓÚ \a µÄÖµ)</td></tr>
  48. $table_tr<td><tt>\function{f=random<br/> (x^2+1,sin(x),log(x))}</tt></td>
  49.     <td>\f ÊÇ x^2+1, sin(x), »ò log(x) ÖÐËæ»úÑ¡È¡µÄº¯Êý</td></tr>
  50. $table_tr<td><tt>\real{a=evalue(x^2+sin(y),x=3,y=4)}</tt></td>
  51.     <td>º¯Êý x^2+sin(y) ¶Ô x=3, y=4 ¸³Öµ</td></tr>
  52. $table_tr<td><tt>\real{r=solve(x^3-3*x+1,x=0..1)}</tt></td>
  53.     <td>\r ÊÇ x^3-3x+1 ÔÚ 0 Óë 1 Ö®¼äµÄµ¥¸ù</td></tr>
  54. $table_tr<td><tt>\function{h=simplify(x^5*y^3*x^2/y)}</tt></td>
  55.     <td>»¯¼ò±í´ïʽ: x<sup>7</sup>y<sup>2</sup></td></tr>
  56. $table_tr<td><tt>\function{g=diff(sin(x)+cos(y),x)}</tt></td>
  57.     <td>\g ÊÇ sin(x)+cos(y) ¹ØÓÚ x µÄµ¼Êý</td></tr>
  58. $table_tr<td><tt>\function{F=int(x^2+3*x+1,x)}</tt></td>
  59.     <td>\F ÊÇ x^2+3*x+1 µÄ²»¶¨»ý·Ö,<br/>
  60.      ²»±£Ö¤³£ÊýÏîʼÖÕÏàͬ</td></tr>
  61. !!$table_tr<td><tt>\function{F=int(t^2+3*t+1,t=1..x)}</tt></td>
  62. !!    <td>\F ÊÇ x^2+3*x+1 Âú×ã g(1)=0 µÄÔ­º¯Êý</td></tr>
  63. $table_tr<td><tt>\real{a=int(t^2+3*t+1,t=0..1)}</tt></td>
  64.     <td>\a ÊÇ x^2+3*x+1 ´Ó 0 µ½ 1 µÄÊýÖµ»ý·Ö</td></tr>
  65. $table_tr<td><tt>\text{f=htmlmath(2*x^2+3*x)}</tt></td>
  66.     <td>\f ±íʾ³É html ¸ñʽ, Èç: 2x<sup>2</sup>+3x</td></tr>
  67. $table_tr<td><tt>\text{f=texmath(2*x^2+3*x)}</tt></td>
  68.     <td>\f ±íʾ³É TeX ¸ñʽ.</td></tr>
  69. $table_tr<td><tt>\integer{n=items(a,b,c,d,e,f)}</tt></td>
  70.     <td>\n ÊDZí {a,b,c,d,e,f} ÖеÄÔªËظöÊý (ÕâÀïÊÇ 6)</td></tr>
  71. $table_tr<td><tt>\text{i=item(3,a,b,c,d,e,f)}</tt></td>
  72.     <td>\i ÊDZí {a,b,c,d,e,f} ÖÐµÚ 3 ¸öÔªËØ (ÕâÀïÊÇ c).</td></tr>
  73. $table_tr<td><tt>\text{s=shuffle(6)}</tt></td>
  74.     <td>\s ÊÇ 6 ¸öÕûÊý 1,2,...,6 µÄ±í, ´ÎÐòÊÇËæ»úµÄ.</td></tr>
  75. $table_tr<td><tt>\text{s=shuffle(a,b,c,d,e)}</tt></td>
  76.     <td>\s ÊÇ×Öĸ±í {a,b,c,d,e}, ´ÎÐòÊÇËæ»úµÄ.</td></tr>
  77. $table_tr<td><tt>\matrix{m=1,2,3<br/>4,5,6<br/>7,8,9}</tt></td>
  78.     <td>\m ÊÇ 3 ÐÐ 3 ÁеľØÕó.</td></tr>
  79. $table_tr<td><tt>\text{t=asis(How do you do? matrix(1,2,3))}</tt></td>
  80.     <td>±£³Ö´®µÄԭʼÐÎʽ, ²»×ö±ä»», ²»¼ÓÌõ¼þ.</td></tr>
  81.  
  82. $table_end <p>
  83.  
  84. Ìõ¼þ²ÎÊý: Äú¿ÉÒÔд<p>
  85. <tt>\text{ttt=_condition?_def1}</tt>»ò<br/>
  86. <tt>\text{ttt=_condition?_def1:_def2}</tt>
  87. <p>
  88. ÔÚÕâ¸öÇéÐÎ, µ±Ìõ¼þ <tt>_condition</tt> ΪÕæʱ, <tt>ttt</tt> È¡Öµ <tt>_def1</tt>.
  89. Èç¹ûÊǵڶþ¾ä, ·ñÔòÈ¡ <tt>_def2</tt>.
  90. !href target=wims_mhelp cmd=help&special_parm=if Ìõ¼þ±í
  91. <p>
  92. ¶¨ÒåÓë³ÂÊöµÄÏà¶ÔλÖÃÊǺÜÖØÒªµÄ:
  93. Èç¹û±äÁ¿¶¨ÒåÔÚ³ÂÊöÖ®ºó, ÄÇô½öµ±Óû§»Ø´ðÁËÎÊÌâºó²Å»á¸ø±äÁ¿¸³Öµ.
  94. ÔÚÕâÖÖÇéÐÎ, ¶¨ÒåÖпÉÒÔͨ¹ý <tt>\reply1</tt>,
  95. <tt>\reply2</tt> µÈÒýÓÃÓû§µÄ´ð°¸. ´Ë±äÁ¿¿ÉÓÃÓÚ½â´ðÖÐ, ÒÔ²âÊÔÌõ¼þ»ò·´À¡.
  96.  
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  98.  
  99.