<center><h3>½»»¥Ê½Á·Ï°ÖеÄËæ»ú²ÎÊý</h3></center> <p>
ʹÓÃËæ»ú²ÎÊý¿ÉÒÔʹÄúµÄÁ·Ï°¸ü¼ÓÎüÒýÈË,
ÒòΪÿ´Î³öÀ´µÄ¶¼ÊDz»Í¬µÄÁ·Ï°.
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ÀýÈçÒÔÏÂÒ»ÐÐÃüÁÒåÁËÃûΪ<font color=blue><b>x1</b></font>µÄ²ÎÊý,
ËüµÄÖµÊÇ-10Óë10¼äµÄ²ÎÊý(°üÀ¨-10Óë10):
<pre>
\integer{x1=random(-10..10)}
</pre>
ÒÔºóÔÚ³ÂÊö, »Ø´ð, ÌáʾÓë½âÖж¼¿ÉÒÔÓÃ<b><tt>\x1</tt></b>À´µ÷ÓôËËæ»ú²ÎÊý.
Ò²¾ÍÊÇ˵Îı¾ÖеÄ<tt>\x1</tt>ÿ´Î¶¼±»²»Í¬µÄËæ»úÖµËùÈ¡´ú.
ÕâÖÖÈ¡´úÒ²·¢ÉúÔÚÒÀÀµÓÚx1µÄÆäËû²ÎÊýµÄ¶¨ÒåÖÐ.
<p>
ÏÖÔÚ¼ÙÉèÄúÔÚ²ÎÊý¶¨ÒåµÄÀ¸Ä¿ÖÐÊäÈëÁË
<pre>
\integer{x1=random(-10..10)}
\integer{y1=\x1+3}
</pre>
Á·Ï°µÄ³ÂÊöΪ
<pre>
¼ÆËã\x1Óë\y1µÄ³Ë»ý.
</pre>
¼Ù¶¨ÔÚÁ·Ï°µÄij¸öÇëÇóÖÐ\x1±»·ÖÅäÒ»¸öËæ»úÖµ<font color=red>-7</font>.
ºóÒ»¸ö²ÎÊý\y1½«È¡Öµ-4, ¶øÇÒ´ËÁ·Ï°½«¾ßÓÐÐÎʽ<p>
<center>¼ÆËã-7Óë-4 ³Ë»ý.
</center> <p>
ÄúÈ»ºó¿ÉÒÔ¶¨ÒåÃûΪ<b>³Ë»ý</b>µÄÊýÖµ»Ø´ðµÄÕýÈ·½âÊÇ
<tt>(\x1)*(\y1)</tt>. (×¢ÒâÕâÀïµÄÀ¨ºÅÊDZØÒªµÄ, ÒòÎªÌæ´úÍêÈ«Êǰ´×ÖÃæÒâÒåÖ´ÐеÄ.)
<a name=list></a>
!if oefparm isitemof $special_parm
!changeto help/oefparm.phtml
!endif
<p>$table_header
<caption>²ÎÊýµÄһЩ±ðµÄÀý×Ó
!href cmd=help&special_parm=$special_parm,oefparm#list [ÍêÕû±í¸ñ]
</caption>
$table_hdtr<th>¶¨Òå<th>µÄЧ¹û
$table_tr<td><tt>\real{x=random(-5..5)}</tt>
<td>\xÊÇ-5Óë5¼äµÄËæ»úʵÊý
$table_tr<td><tt>\real{a=random(-5,-3,0.3,4)}</tt>
<td>\aÊÇÔÚ-5,-3,0.3,4Ö®ÖÐËæ»úѡȡµÄʵÊý
$table_tr<td><tt>\complex{z=(1+2*i)^3}</tt>
<td>\zÊǸ´Êý(1+2*i)^3
$table_tr<td><tt>\text{sign=random(+,-)}</tt>
<td>\signÊÇËæ»ú·ûºÅ: +»ò-
$table_tr<td
><tt
>\integer
{n
=3*exp(\a
)}</tt
>
<td>\nÊÇÓë3*e<sup>\a</sup>×î½Ó½üµÄÕûÊý(ËüÒÀÀµÓÚ\aµÄÖµ)
$table_tr<td
><tt
>\
function{f
=random
<br
> (x^
2+1,sin(x
),log(x
))}</tt
>
<td
>\fÊÇËæ»úµÄº¯Êý
: x^
2+1, sin(x
), »ò
log(x
)
$table_tr<td
><tt
>\real
{a
=evalue
(x^
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),x
=3,y
=4)}</tt
>
<td
>º¯Êýx^
2+sin(y
)¶Ôx
=3, y
=4¸³Öµ
$table_tr<td><tt>\real{r=solve(x^3-3*x+1,x=0..1)}</tt>
<td>\rÊÇx^3-3x+1ÔÚ0Óë1Ö®¼äµÄµ¥¸ù
$table_tr<td><tt>\function{h=simplify(x^5*y^3*x^2/y)}</tt>
<td>»¯¼ò±í´ïʽ: x<sup>7</sup>y<sup>2</sup>
$table_tr<td
><tt
>\
function{g
=diff
(sin(x
)+cos(y
),x
)}</tt
>
<td
>\gÊÇ
sin(x
)+cos(y
)¹ØÓÚxµÄµ¼Êý
$table_tr<td><tt>\function{F=int(x^2+3*x+1,x)}</tt>
<td>\FÊÇx^2+3*x+1µÄ²»¶¨»ý·Ö,<br>
²»±£Ö¤³£ÊýÏîʼÖÕÏàͬ
!!$table_tr<td><tt>\function{F=int(t^2+3*t+1,t=1..x)}
!! <td>\FÊÇx^2+3*x+1Âú×ãg(1)=0µÄÔº¯Êý
$table_tr<td><tt>\real{a=int(t^2+3*t+1,t=0..1)}</tt>
<td>\aÊÇx^2+3*x+1´Ó0µ½1µÄÊýÖµ»ý·Ö
$table_tr<td><tt>\text{f=htmlmath(2*x^2+3*x)}</tt>
<td>\f±íʾ³Éhtml¸ñʽ, Èç: 2x<sup>2</sup>+3x
$table_tr<td><tt>\text{f=texmath(2*x^2+3*x)}</tt>
<td>\f±íʾ³ÉTeX¸ñʽ.
$table_tr<td><tt>\integer{n=items(a,b,c,d,e,f)}</tt>
<td>\nÊDZí{a,b,c,d,e,f}ÖеÄÔªËØ¸öÊý(ÕâÀïÊÇ6)
$table_tr<td><tt>\text{i=item(3,a,b,c,d,e,f)}</tt>
<td>\iÊDZí{a,b,c,d,e,f}ÖеÚ3¸öÔªËØ(ÕâÀïÊÇc).
$table_tr<td
><tt
>\text
{s
=shuffle(6)}</tt
>
<td>\sÊÇ6¸öÕûÊý1,2,...,6µÄ±í, ´ÎÐòÊÇËæ»úµÄ.
$table_tr<td
><tt
>\text
{s
=shuffle(a
,b
,c
,d
,e
)}</tt
>
<td>\sÊÇ×Öĸ{a,b,c,d,e}, ´ÎÐòÊÇËæ»úµÄ.
$table_tr<td><tt>\matrix{m=1,2,3<br>4,5,6<br>7,8,9}</tt>
<td>\mÊÇ3ÐÐ3ÁеľØÕó.
$table_tr<td><tt>\text{t=asis(How do you do? item(1,2,3))}</tt>
<td>±£³Ö´®µÄÔʼÐÎʽ, ²»×ö±ä»», ²»¼ÓÌõ¼þ.
$table_end <p>
Ìõ¼þ²ÎÊý: Äú¿ÉÒÔд<p>
<tt>\text{ttt=_condition?_def1}</tt>»ò<br>
<tt>\text{ttt=_condition?_def1:_def2}</tt>
<p>
ÔÚÕâ¸öÇéÐÎ, µ±Ìõ¼þ<tt>_condition</tt>ÎªÕæÊ±, <tt>ttt</tt>ȡֵ<tt>_def1</tt>.
Èç¹ûÊǵڶþ¾ä, ·ñÔòÈ¡ <tt>_def2</tt>.
!href target=wims_mhelp cmd=help&special_parm=if Ìõ¼þ±í
<p>
¶¨ÒåÓë³ÂÊöµÄÏà¶ÔλÖÃÊǺÜÖØÒªµÄ:
Èç¹û±äÁ¿¶¨ÒåÔÚ³ÂÊöÖ®ºó, ÄÇô½öµ±Óû§»Ø´ðÁËÎÊÌâºó²Å»á¸ø±äÁ¿¸³Öµ.
ÔÚÕâÖÖÇéÐÎ, ¶¨ÒåÖпÉÒÔͨ¹ý<tt>\reply1</tt>,
<tt>\reply2</tt>µÈÒýÓÃÓû§µÄ´ð°¸. ´Ë±äÁ¿¿ÉÓÃÓÚ½â´ðÖÐ, ÒÔ²âÊÔÌõ¼þ»ò·´À¡.