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  1. <h3>½»»¥Ê½Á·Ï°ÖеÄËæ»ú²ÎÊý</h3>
  2. <p>
  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. </p>
  9. <pre>
  10. \integer{x1=random(-10..10)}
  11. </pre>
  12. ÒÔºóÔÚ³ÂÊö, »Ø´ð, ÌáʾÓë½âÖж¼¿ÉÒÔÓà <b><span class="tt">\x1</span></b> À´µ÷ÓôËËæ»ú²ÎÊý.
  13. Ò²¾ÍÊÇ˵Îı¾ÖÐµÄ <span class="tt">\x1</span> ÿ´Î¶¼±»²»Í¬µÄËæ»úÖµËùÈ¡´ú.
  14. ÕâÖÖÈ¡´úÒ²·¢ÉúÔÚÒÀÀµÓÚ x1 µÄÆäËû²ÎÊýµÄ¶¨ÒåÖÐ.
  15. <p>
  16. ÏÖÔÚ¼ÙÉèÄúÔÚ²ÎÊý¶¨ÒåµÄÀ¸Ä¿ÖÐÊäÈëÁË
  17. </p>
  18. <pre>
  19. \integer{x1=random(-10..10)}
  20. \integer{y1=\x1+3}
  21. </pre>
  22. Á·Ï°µÄ³ÂÊöΪ
  23. <pre>
  24. ¼ÆËã \x1 Óë \y1 µÄ³Ë»ý.
  25. </pre>
  26. ¼Ù¶¨ÔÚÁ·Ï°µÄij¸öÇëÇóÖÐ \x1 ±»·ÖÅäÒ»¸öËæ»úÖµ <span class="wims_emph">-7</font>.
  27. ºóÒ»¸ö²ÎÊý \y1 ½«È¡Öµ -4, ¶øÇÒ´ËÁ·Ï°½«¾ßÓÐÐÎʽ <div class="wimscenter">¼ÆËã -7 Óë -4 ³Ë»ý.
  28. </div>
  29. ÄúÈ»ºó¿ÉÒÔ¶¨ÒåÃûΪ<b>³Ë»ý</b>µÄÊýÖµ»Ø´ðµÄÕýÈ·½âÊÇ
  30. <span class="tt">(\x1)*(\y1)</span>. (×¢ÒâÕâÀïµÄÀ¨ºÅÊDZØÒªµÄ, ÒòΪÌæ´úÍêÈ«ÊÇ°´×ÖÃæÒâÒåÖ´ÐеÄ.)
  31. <a id="list"></a>
  32. !if oefparm isitemof $special_parm
  33.  !changeto help/oefparm.phtml
  34. !endif
  35. $table_header
  36. <caption>²ÎÊýµÄһЩ±ðµÄÀý×Ó
  37. !href cmd=help&special_parm=$special_parm,oefparm#list [ÍêÕû±í¸ñ]
  38. </caption>
  39. $table_hdtr<th>¶¨Òå</th><th>Ч¹û</th></tr>
  40. $table_tr<td class="tt">\real{x=random(-5..5)}</td>
  41.     <td>\x ÊÇ -5 Óë 5 ¼äµÄËæ»úʵÊý</td></tr>
  42. </td></tr>
  43. $table_tr<td class="tt">\real{a=random(-5,-3,0.3,4)}</td>
  44.     <td>\a ÊÇÔÚ -5,-3,0.3,4 Ö®ÖÐËæ»úÑ¡È¡µÄʵÊý</td></tr>
  45. </td></tr>
  46. $table_tr<td class="tt">\complex{z=(1+2*i)^3}</td>
  47.     <td>\z ÊǸ´Êý (1+2*i)^3</td></tr>
  48. </td></tr>
  49. $table_tr<td class="tt">\text{sign=random(+,-)}</td>
  50.     <td>\sign ÊÇËæ»ú·ûºÅ: + »ò -</td></tr>
  51. </td></tr>
  52. $table_tr<td class="tt">\integer{n=3*exp(\a)}</td>
  53.     <td>\n ÊÇÓë 3*e<sup>\a</sup> ×î½Ó½üµÄÕûÊý (ËüÒÀÀµÓÚ \a µÄÖµ)</td></tr>
  54. </td></tr>
  55. $table_tr<td class="tt">\function{f=random<br/> (x^2+1,sin(x),log(x))}</td>
  56.     <td>\f ÊÇ x^2+1, sin(x), »ò log(x) ÖÐËæ»úÑ¡È¡µÄº¯Êý</td></tr>
  57. </td></tr>
  58. $table_tr<td class="tt">\real{a=evalue(x^2+sin(y),x=3,y=4)}</td>
  59.     <td>º¯Êý x^2+sin(y) ¶Ô x=3, y=4 ¸³Öµ</td></tr>
  60. </td></tr>
  61. $table_tr<td class="tt">\real{r=solve(x^3-3*x+1,x=0..1)}</td>
  62.     <td>\r ÊÇ x^3-3x+1 ÔÚ 0 Óë 1 Ö®¼äµÄµ¥¸ù</td></tr>
  63. </td></tr>
  64. $table_tr<td class="tt">\function{h=simplify(x^5*y^3*x^2/y)}</td>
  65.     <td>»¯¼ò±í´ïʽ: x<sup>7</sup>y<sup>2</sup></td></tr>
  66. </td></tr>
  67. $table_tr<td class="tt">\function{g=diff(sin(x)+cos(y),x)}</td>
  68.     <td>\g ÊÇ sin(x)+cos(y) ¹ØÓÚ x µÄµ¼Êý</td></tr>
  69. </td></tr>
  70. $table_tr<td class="tt">\function{F=int(x^2+3*x+1,x)}</td>
  71.     <td>\F ÊÇ x^2+3*x+1 µÄ²»¶¨»ý·Ö,<br/>
  72.      ²»±£Ö¤³£ÊýÏîʼÖÕÏàͬ</td></tr>
  73. !!</td></tr>
  74. $table_tr<td class="tt">\function{F=int(t^2+3*t+1,t=1..x)}</td>
  75. !!    <td>\F ÊÇ x^2+3*x+1 Âú×ã g(1)=0 µÄÔ­º¯Êý</td></tr>
  76. </td></tr>
  77. $table_tr<td class="tt">\real{a=int(t^2+3*t+1,t=0..1)}</td>
  78.     <td>\a ÊÇ x^2+3*x+1 ´Ó 0 µ½ 1 µÄÊýÖµ»ý·Ö</td></tr>
  79. </td></tr>
  80. $table_tr<td class="tt">\text{f=htmlmath(2*x^2+3*x)}</td>
  81.     <td>\f ±íʾ³É html ¸ñʽ, Èç: 2x<sup>2</sup>+3x</td></tr>
  82. </td></tr>
  83. $table_tr<td class="tt">\text{f=texmath(2*x^2+3*x)}</td>
  84.     <td>\f ±íʾ³É TeX ¸ñʽ.</td></tr>
  85. </td></tr>
  86. $table_tr<td class="tt">\integer{n=items(a,b,c,d,e,f)}</td>
  87.     <td>\n ÊDZí {a,b,c,d,e,f} ÖеÄÔªËظöÊý (ÕâÀïÊÇ 6)</td></tr>
  88. </td></tr>
  89. $table_tr<td class="tt">\text{i=item(3,a,b,c,d,e,f)}</td>
  90.     <td>\i ÊDZí {a,b,c,d,e,f} ÖÐµÚ 3 ¸öÔªËØ (ÕâÀïÊÇ c).</td></tr>
  91. </td></tr>
  92. $table_tr<td class="tt">\text{s=shuffle(6)}</td>
  93.     <td>\s ÊÇ 6 ¸öÕûÊý 1,2,...,6 µÄ±í, ´ÎÐòÊÇËæ»úµÄ.</td></tr>
  94. </td></tr>
  95. $table_tr<td class="tt">\text{s=shuffle(a,b,c,d,e)}</td>
  96.     <td>\s ÊÇ×Öĸ±í {a,b,c,d,e}, ´ÎÐòÊÇËæ»úµÄ.</td></tr>
  97. </td></tr>
  98. $table_tr<td class="tt">\matrix{m=1,2,3<br/>4,5,6<br/>7,8,9}</td>
  99.     <td>\m ÊÇ 3 ÐÐ 3 ÁеľØÕó.</td></tr>
  100. </td></tr>
  101. $table_tr<td class="tt">\text{t=asis(How do you do? matrix(1,2,3))}</td>
  102.     <td>±£³Ö´®µÄԭʼÐÎʽ, ²»×ö±ä»», ²»¼ÓÌõ¼þ.</td></tr>
  103.  
  104. $table_end
  105.  
  106. Ìõ¼þ²ÎÊý: Äú¿ÉÒÔд<p>
  107. <span class="tt">\text{ttt=_condition?_def1}</span>»ò<br/>
  108. <span class="tt">\text{ttt=_condition?_def1:_def2}</span>
  109. <p>
  110. ÔÚÕâ¸öÇéÐÎ, µ±Ìõ¼þ <span class="tt">_condition</span> ΪÕæʱ, <span class="tt">ttt</span> È¡Öµ <span class="tt">_def1</span>.
  111. Èç¹ûÊǵڶþ¾ä, ·ñÔòÈ¡ <span class="tt">_def2</span>.
  112. !href target=wims_mhelp cmd=help&special_parm=if Ìõ¼þ±í
  113. <p>
  114. ¶¨ÒåÓë³ÂÊöµÄÏà¶ÔλÖÃÊǺÜÖØÒªµÄ:
  115. Èç¹û±äÁ¿¶¨ÒåÔÚ³ÂÊöÖ®ºó, ÄÇô½öµ±Óû§»Ø´ðÁËÎÊÌâºó²Å»á¸ø±äÁ¿¸³Öµ.
  116. ÔÚÕâÖÖÇéÐÎ, ¶¨ÒåÖпÉÒÔͨ¹ý <span class="tt">\reply1</span>,
  117. <span class="tt">\reply2</span> µÈÒýÓÃÓû§µÄ´ð°¸. ´Ë±äÁ¿¿ÉÓÃÓÚ½â´ðÖÐ, ÒÔ²âÊÔÌõ¼þ»ò·´À¡.
  118. </p>
  119.  
  120.  
  121.