OEF ÏßÐÔ·½³Ì×é
--- ½éÉÜ ---
±¾Ä£¿éÄ¿Ç°ÓÐ 19 ¸ö¹ØÓÚÏßÐÔ·½³Ì×éµÄÁ·Ï°.
3¸öÆ¿×Ó
ÓÐ 3 ¸öˮƿ. - Èç¹û´Ó A Æ¿µ¹ cl µÄË®µ½ B Æ¿, B Æ¿µÄË®½«ÊÇ A Æ¿µÄ ±¶.
- Èç¹û´Ó B Æ¿µ¹ cl µÄË®µ½ C Æ¿, C Æ¿µÄË®½«ÊÇ B Æ¿µÄ ±¶.
- Èç¹û´Ó C Æ¿µ¹ cl µÄË®µ½ A Æ¿, A Æ¿µÄË®½«Óë C Æ¿Ò»Ñù¶à.
ÿ¸öÆ¿Àï¸÷ÓжàÉÙË® (ÒÔ cl Ϊµ¥Î»)?
µÈ¾à
ÕÒ³öƽÃæÉϵã p=(x,y) µÄ×ø±êʹµÃ: - p ºÍ q1=(,) µÄ¾àÀëµÈÓÚ p ºÍ q2=(,) µÄ¾àÀë.
- p ºÍ r1=(,) µÄ¾àÀëµÈÓÚ p ºÍ r2=(,) µÄ¾àÀë.
4¸öÕûÊý II
ÓÐ 4 ¸öÕûÊý a,b,c,d Âú×ã: - ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
ÎÊ ºÍ µÄƽ¾ùÖµÊǶàÉÙ?
4¸öÕûÊý III
Çó 4 ¸öÕûÊý a,b,c,d ʹµÃ: - ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
4¸öÕûÊý
ÓÐ 4 ¸öÕûÊý a,b,c,d Âú×ã: - a, b ºÍ c µÄƽ¾ùÖµÊÇ .
- b, c ºÍ d µÄƽ¾ùÖµÊÇ .
- c, d ºÍ a µÄƽ¾ùÖµÊÇ .
- d, a ºÍ b µÄƽ¾ùÖµÊÇ .
Õâ 4 ¸öÕûÊýµÈÓÚ¶àÉÙ?
Èý½ÇÐεĶ¥µã
ÓÐÒ»¸öƽÃæÈý½ÇÐÎ ABC Âú×ã: - ±ß AB µÄÖеãÊÇ (,).
- ±ß BC µÄÖеãÊÇ (,).
- ±ß AC µÄÖеãÊÇ (,).
ÇóÈý½ÇÐÎ 3 ¸ö¶¥µã A, B, C µÄ×ø±ê? ÕâÀï¼ÙÉè A=(x1,y1), B=(x2,y2), C=(x3,y3).
3¸öÕûÊý
ÓÐ 3 ¸öÕûÊý a,b,c Âú×ã: - a ºÍ b µÄƽ¾ùÖµÊÇ .
- b ºÍ c µÄƽ¾ùÖµÊÇ .
- c ºÍ a µÄƽ¾ùÖµÊÇ .
Õâ 3 ¸öÕûÊýµÈÓÚ¶àÉÙ?
3ÖÖ½ðÊôµÄºÏ½ð
¹¤³§´Ó 3 ÖÖ½ðÊôÔÁÏÉú²úºÏ½ð. Õâ 3 ÖÖÔÁϵijɷÖÈçÏÂ: ÀàÐÍ | Ìú | Äø | Í |
---|
ÔÁÏ A | % | % | % |
ÔÁÏ B | % | % | % |
ÔÁÏ C | % | % | % |
¹¤³§ÊÕµ½ÁË ¶ÖºÏ½ðµÄ¶¨µ¥, ´ËºÏ½ðÓ¦º¬ % Ìú, % ÄøºÍ % Í. ÎÊÕâ 3 ÖÖÀàÐ͵ÄÔÁϸ÷Ðè¶àÉÙ¶Ö²ÅÄÜÉú²ú³öºÏºõÒªÇóµÄºÏ½ð?
¼¸ºõ¶Ô½ÇÐÎ
ÔÚÒÔϺ¬ ¸ö·½³ÌºÍ ¸öδ֪Á¿ (>3) µÄ·½³Ì×éÀï, È·¶¨½â 1 µÄÖµ. (½âÊÇ µÄº¯Êý, Óë µÄÆæżÐÔÓйØ.)
Ô²µÄ·½³Ì
ƽÃæÉϵÄÔ²·½³Ì×Ü¿ÉÒÔд³ÉÒÔÏÂÐÎʽ 2+2 = ++, ÆäÖÐ ,, ÊÇʵÊý.
Çó³ö ,, ÒԵõ½¹ýÏÂÁÐ 3 µãµÄÔ² C µÄ·½³Ì
1=(,) , 2=(,) , 3=(,) .
Æë´Î2x3
ÇóÒÔÏÂÆë´ÎÏßÐÔ·½³Ì×éµÄÒ»¸ö·ÇÁã½â: ½â x,y,z Ó¦¸ÃÈ¡ÕûÊý.
Æë´Î3x4
ÇóÒÔÏÂÆë´ÎÏßÐÔ·½³Ì×éµÄÒ»¸ö·ÇÁã½â: ½â x,y,z,t Ó¦¸ÃÈ¡ÕûÊý.
Ö±ÏßÏཻ
¿¼ÂÇƽÃæÉÏÓÉÒÔÏ·½³Ì¶¨ÒåµÄÁ½ÌõÖ±Ïß: x y = , x y = . ÊÔÈ·¶¨ËüÃǵĽ»µã p=(x,y).
ËıßÐÎ
ÓÐÒ»¸öƽÃæËıßÐÎ, Æ䶥µã ,,,, Âú×ã: - ±ß µÄÖеãÊÇ ( , ).
- ±ß µÄÖеãÊÇ ( , ).
- ±ß µÄÖеãÊÇ ( , ).
Î汧 µÄÖеã (x,y) ÊÇʲô?
6¸öÕûÊý
ÓÐ 6 ¸öÕûÊý ,,,,, Âú×ã: - ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
- ºÍ µÄƽ¾ùÖµÊÇ .
ÎÊ ºÍ µÄƽ¾ùÖµÊǶàÉÙ?
½â 2x2
ÇóÒÔÏ·½³Ì×éµÄ½â.
½â 3x3
ÇóÒÔÏ·½³Ì×éµÄ½â.
Èý½ÇÐη½³Ì×é
ÔÚÒÔϺ¬ ¸ö·½³ÌºÍ ¸öδ֪Á¿ (>3) µÄ·½³Ì×éÀï, È·¶¨½â 1 µÄÖµ. 1+2+3+...+ | = |
2+3+...+ | = |
. . . |
-1+ | = |
| = |
½âµÄÀàÐÍ
ÓÐÒ»¸öÓÉ ¸öÏßÐÔºÍ ¸ö±äÁ¿×é³ÉµÄÏßÐÔ·½³Ì×é. ÒÔÏÂÐÔÖÊÖÐÄÄЩÊÇÕýÈ·µÄ? - A. ·½³Ì×éÎÞ½â.
- B. ·½³Ì×éÓÐΨһ½â.
- C. ·½³Ì×éÓÐÎÞÇî¶à½â.
The most recent version
ÓÉÓÚ WIMS ²»ÄÜʶ±ðÄúµÄä¯ÀÀÆ÷, ±¾Ò³²»ÄÜÕý³£ÏÔʾ.
Çë×¢Òâ: WIMS µÄÍøÒ³Êǽ»»¥Ê½µÄ: ËüÃDz»ÊÇͨ³£µÄ HTML Îļþ. Ö»ÄÜÔÚÏß½»»¥µØ
ʹÓÃ. ÄúÓÃ×Ô¶¯»¯³ÌÐòÊÕ¼¯µÄÍøÒ³ÊÇÎÞÓõÄ.
- Description: Ò»×é¹ØÓÚÏßÐÔ·½³Ì×éµÄÁ·Ï°. exercises interactifs, calcul et trac� de graphes en ligne
- Keywords: interactive mathematics, interactive math, server side interactivity, algebra, linear algebra, linear system, Gauss elimination