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2 | <center><h3>OEF¸ñʽϽ»»¥Ê½Á·Ï°µÄÀý</h3></center> <p> |
2 | <center><h3>OEF¸ñʽϽ»»¥Ê½Á·Ï°µÄÀý</h3></center> <p> |
3 | 3 | ||
4 | ÒÔÏÂÊÇ¿ÉÀûÓÃ<b>´´½¨Á·Ï°</b>(createxo)´´½¨µÄ½»»¥Ê½Á·Ï°µÄÀý×Ó. |
4 | ÒÔÏÂÊÇ¿ÉÀûÓÃ<b>´´½¨Á·Ï°</b>(createxo)´´½¨µÄ½»»¥Ê½Á·Ï°µÄÀý×Ó. |
5 | <ol> |
5 | <ol> |
- | 6 | ||
6 | < |
7 | <li> <hr style="width:50%"/> |
7 |
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8 | <b>2άÏòÁ¿µÄ³¤¶È</b>, Æ½ÃæÄÚÏòÁ¿µÄ³¤¶ÈµÄ¼òµ¥¼ÆËã. |
8 | ÏÂÃæÊÇÕâ¸öÁ·Ï°µÄÍêÕûÔ´´úÂë. |
9 | ÏÂÃæÊÇÕâ¸öÁ·Ï°µÄÍêÕûÔ´´úÂë. |
9 |
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10 | <pre> |
10 | \title{2άÏòÁ¿µÄ·¶Êý} |
11 | \title{2άÏòÁ¿µÄ·¶Êý} |
11 | \language{cn} |
12 | \language{cn} |
12 | \computeanswer{no} |
13 | \computeanswer{no} |
13 | \format{html} |
14 | \format{html} |
14 | 15 | ||
15 | \integer{x=random(-10..10)} |
16 | \integer{x=random(-10..10)} |
16 | \integer{y=random(-10..10)} |
17 | \integer{y=random(-10..10)} |
17 | \real{norm=sqrt((\x)^2+(\y)^2)} |
18 | \real{norm=sqrt((\x)^2+(\y)^2)} |
18 | \statement{R<sup>2</sup>ÖÐÏòÁ¿(\x,\y)µÄ³¤¶ÈÊÇʲô?} |
19 | \statement{R<sup>2</sup>ÖÐÏòÁ¿(\x,\y)µÄ³¤¶ÈÊÇʲô?} |
19 | 20 | ||
20 | \hint{ÏòÁ¿(x,y)µÄ³¤¶ÈµÈÓÚsqrt(x^2+y^2).} |
21 | \hint{ÏòÁ¿(x,y)µÄ³¤¶ÈµÈÓÚsqrt(x^2+y^2).} |
21 | \answer{³¤¶È}{\norm} |
22 | \answer{³¤¶È}{\norm} |
22 | </pre |
23 | </pre> |
23 | 24 | ||
24 | ÔÚÕâ¸öÁ·Ï°ÖÐ, ¶¨ÒåÁËÁ½¸öËæ»úÕûÊýxÓëy, ËüÃÇÊÇÏòÁ¿µÄ×ø±ê. |
25 | ÔÚÕâ¸öÁ·Ï°ÖÐ, ¶¨ÒåÁËÁ½¸öËæ»úÕûÊýxÓëy, ËüÃÇÊÇÏòÁ¿µÄ×ø±ê. |
25 | µÚÈý¸ö²ÎÊýÊÇʵÊý, Óɳ¤¶È¹«Ê½ËùÈ·¶¨. ±¾Á·Ï°²ÉÈ¡×ÔÓɸñʽµÄ»Ø´ð, |
26 | µÚÈý¸ö²ÎÊýÊÇʵÊý, Óɳ¤¶È¹«Ê½ËùÈ·¶¨. ±¾Á·Ï°²ÉÈ¡×ÔÓɸñʽµÄ»Ø´ð, |
26 | ÆäÃû³ÆÊÇ``³¤¶È'', ÆäÕýÈ·»Ø´ðÓ¦¸ÃÊǵÚÈý¸ö²ÎÊý``·¶Êý''µÄÖµ. |
27 | ÆäÃû³ÆÊÇ``³¤¶È'', ÆäÕýÈ·»Ø´ðÓ¦¸ÃÊǵÚÈý¸ö²ÎÊý``·¶Êý''µÄÖµ. |
27 | ±¾Á·Ï°×¼±¸ÁËÒ»¸öÌáʾ, Ëü¸´Ï°Á˳¤¶È¹«Ê½. <p> |
28 | ±¾Á·Ï°×¼±¸ÁËÒ»¸öÌáʾ, Ëü¸´Ï°Á˳¤¶È¹«Ê½. <p> |
28 | Äã¿ÉÒÔ |
29 | Äã¿ÉÒÔ |
29 | !set parm=oef_answercnt=1&oef_choicecnt=0&oef_title=2άÏòÁ¿µÄ·¶Êý&oef_format=html&oef_computeanswer=no&level=2&oef_parms=%5Cinteger%7Bx%3Drandom%28-10..10%29%7D%0D%0A%5Cinteger%7By%3Drandom%28-10..10%29%7D%0D%0A%5Creal%7Bnorm%3Dsqrt%28%28%5Cx%29%5E2%2B%28%5Cy%29%5E2%29%7D&oef_statement=R%3Csup%3E2%3C%2Fsup%3EÖÐÏòÁ¿%28%5Cx%2C%5Cy%29µÄ³¤¶ÈÊÇʲô&ansprompt1=³¤¶È&ansgood1=%5Cnorm&oef_hint=ÏòÁ¿%28x%2Cy%29µÄ³¤¶ÈfµÈÓÚ%0D%0Asqrt%28x%5E2%2By%5E2%29.&oef_solution= $ |
30 | !set parm=oef_answercnt=1&oef_choicecnt=0&oef_title=2άÏòÁ¿µÄ·¶Êý&oef_format=html&oef_computeanswer=no&level=2&oef_parms=%5Cinteger%7Bx%3Drandom%28-10..10%29%7D%0D%0A%5Cinteger%7By%3Drandom%28-10..10%29%7D%0D%0A%5Creal%7Bnorm%3Dsqrt%28%28%5Cx%29%5E2%2B%28%5Cy%29%5E2%29%7D&oef_statement=R%3Csup%3E2%3C%2Fsup%3EÖÐÏòÁ¿%28%5Cx%2C%5Cy%29µÄ³¤¶ÈÊÇʲô&ansprompt1=³¤¶È&ansgood1=%5Cnorm&oef_hint=ÏòÁ¿%28x%2Cy%29µÄ³¤¶ÈfµÈÓÚ%0D%0Asqrt%28x%5E2%2By%5E2%29.&oef_solution= $ |
30 | !href cmd=reply&mode=guided&$parm ½«´ËÀý×Ó¶ÁÈë²Ëµ¥ |
31 | !href cmd=reply&mode=guided&$parm ½«´ËÀý×Ó¶ÁÈë²Ëµ¥ |
31 | ÒÔ²âÊÔËü. (ÄãÒ²¿ÉÒÔÔÚÔ´ÂëģʽϰÑÔ´´úÂë¸´ÖÆÈë²Ëµ¥.) |
32 | ÒÔ²âÊÔËü. (ÄãÒ²¿ÉÒÔÔÚÔ´ÂëģʽϰÑÔ´´úÂë¸´ÖÆÈë²Ëµ¥.) |
32 | 33 | ||
- | 34 | ||
33 | < |
35 | <li> <hr style="width:50%"/> |
34 |
|
36 | <b>2x2¾ØÕóµÄ¼£</b>, ¼ÆËã¾ØÕóµÄ¼£. ÏÂÃæÊÇÁ·Ï°µÄÍêÕûÔ´´úÂë. |
35 |
|
37 | <pre> |
36 | \title{2x2¾ØÕóµÄ¼£} |
38 | \title{2x2¾ØÕóµÄ¼£} |
37 | \language{cn} |
39 | \language{cn} |
38 | \computeanswer{yes} |
40 | \computeanswer{yes} |
39 | \format{html} |
41 | \format{html} |
40 | 42 |