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[
緙栬緫]鍙傝[
緙栬緫]寮曠敤
A First Course in Linear Algebra, licensed under
GFDL.
Hermann Grassmann and the Creation of Linear Algebra, American Mathematical Monthly 86 (1979), pp. 809–817.
Linear Algebra (Online textbook)
Elements of Abstract and Linear Algebra (Online textbook)[
緙栬緫]澶栭儴閾炬帴
MIT Linear Algebra Lectures: free videos from
MIT OpenCourseWare
Streaming MIT Linear Algebra Lectures at Google Video
Linear Algebra Toolkit.
Linear Algebra Workbench: multiply and invert matrices, solve systems, eigenvalues etc.
Linear Algebra on MathWorld.
Linear Algebra overview and
notation summary on PlanetMath.
Matrix and Linear Algebra Terms on
Earliest Known Uses of Some of the Words of Mathematics
Linear Algebra by Elmer G. Wiens. Interactive web pages for vectors, matrices, linear equations, etc.
Linear Algebra Solved Problems: Interactive forums for discussion of linear algebra problems, from the lowest up to the hardest level (
Putnam).
Linear Algebra for Informatics. José Figueroa-O'Farrill,
University of Edinburgh
Linear Algebra by Jim Hefferon: A free textbook with exercises and a solutions guide written by a professor at
Saint Michael\'s College.
Online Notes / Linear Algebra Paul Dawkins,
Lamar University
Elementary Linear Algebra textbook with solutions
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| 涔樻硶涓庡洜寮忓垎瑙?/td> | a2-b2=(a+b)(a-b) | a3+b3=(a+b)(a2-ab+b2) | a3-b3=(a-b)(a2+ab+b2) | |
| 涓夎涓嶇瓑寮?/td> | |a+b|≤|a|+|b| | |a-b|≤|a|+|b| | |a|≤b<=>-b≤a≤b | |
| |a-b|≥|a|-|b| | -|a|≤a≤|a| | |||
| 涓鍏冧簩嬈℃柟紼嬬殑瑙?/td> | -b+√(b2-4ac)/2a | -b-b+√(b2-4ac)/2a | ||
| 鏍逛笌緋繪暟鐨勫叧緋?/td> | X1+X2=-b/a | X1*X2=c/a | 娉細闊﹁揪瀹氱悊 | |
| 鍒ゅ埆寮?/td> | b2-4a=0 | 娉細鏂圭▼鏈夌浉絳夌殑涓ゅ疄鏍?/td> | ||
| b2-4ac>0 | 娉細鏂圭▼鏈変竴涓疄鏍?/td> | |||
| b2-4ac<0 | 娉細鏂圭▼鏈夊叡杞鏁版牴 | |||
| 涓夎鍑芥暟鍏紡 | ||||
| 涓よ鍜屽叕寮?/td> | sin(A+B)=sinAcosB+cosAsinB | sin(A-B)=sinAcosB-sinBcosA | ||
| cos(A+B)=cosAcosB-sinAsinB | cos(A-B)=cosAcosB+sinAsinB | |||
| tan(A+B)=(tanA+tanB)/(1-tanAtanB) | tan(A-B)=(tanA-tanB)/(1+tanAtanB) | |||
| ctg(A+B)=(ctgActgB-1)/(ctgB+ctgA) | ctg(A-B)=(ctgActgB+1)/(ctgB-ctgA) | |||
| 鍊嶈鍏紡 | tan2A=2tanA/(1-tan2A) | ctg2A=(ctg2A-1)/2ctga | ||
| cos2a=cos2a-sin2a=2cos2a-1=1-2sin2a | ||||
| 鍗婅鍏紡 | sin(A/2)=√((1-cosA)/2) | sin(A/2)=-√((1-cosA)/2) | ||
| cos(A/2)=√((1+cosA)/2) | cos(A/2)=-√((1+cosA)/2) | |||
| tan(A/2)=√((1-cosA)/((1+cosA)) | tan(A/2)=-√((1-cosA)/((1+cosA)) | |||
| ctg(A/2)=√((1+cosA)/((1-cosA)) | ctg(A/2)=-√((1+cosA)/((1-cosA)) | |||
| 鍜屽樊鍖栫Н | 2sinAcosB=sin(A+B)+sin(A-B) | 2cosAsinB=sin(A+B)-sin(A-B) | ||
| 2cosAcosB=cos(A+B)-sin(A-B) | -2sinAsinB=cos(A+B)-cos(A-B) | |||
| sinA+sinB=2sin((A+B)/2)cos((A-B)/2 | cosA+cosB=2cos((A+B)/2)sin((A-B)/2) | |||
| tanA+tanB=sin(A+B)/cosAcosB | tanA-tanB=sin(A-B)/cosAcosB | |||
| ctgA+ctgBsin(A+B)/sinAsinB | -ctgA+ctgBsin(A+B)/sinAsinB | |||
| 鏌愪簺鏁板垪鍓峮欏瑰拰 | 1+2+3+4+5+6+7+8+9+…+n=n(n+1)/2 | 1+3+5+7+9+11+13+15+…+(2n-1)=n2 | ||
| 2+4+6+8+10+12+14+…+(2n)=n(n+1) | 12+22+32+42+52+62+72+82+…+n2=n(n+1)(2n+1)/6 | |||
| 13+23+33+43+53+63+…n3=n2(n+1)2/4 | 1*2+2*3+3*4+4*5+5*6+6*7+…+n(n+1)=n(n+1)(n+2)/3 | |||
| 姝e雞瀹氱悊 | a/sinA=b/sinB=c/sinC=2R | 娉細 鍏朵腑 R 琛ㄧず涓夎褰㈢殑澶栨帴鍦嗗崐寰?/td> | ||
| 浣欏雞瀹氱悊 | b2=a2+c2-2accosB | 娉細瑙払鏄竟a鍜岃竟c鐨勫す瑙?/td> | ||
| 鍦嗙殑鏍囧噯鏂圭▼ | (x-a)2+(y-b)2=r2 | 娉細錛坅,b錛夋槸鍦嗗績鍧愭爣 | ||
| 鍦嗙殑涓鑸柟紼? | x2+y2+Dx+Ey+F=0 | 娉細D2+E2-4F>0 | ||
| 鎶涚墿綰挎爣鍑嗘柟紼?/td> | y2=2px | y2=-2px | x2=2py | x2=-2py |
| 鐩存1鏌變晶闈㈢Н | S=c*h | 鏂滄1鏌變晶闈㈢Н | S=c'*h | |
| 姝f1閿ヤ晶闈㈢Н | S=1/2c*h' | 姝f1鍙頒晶闈㈢Н | S=1/2(c+c')h' | |
| 鍦嗗彴渚ч潰縐? | S=1/2(c+c')l=pi(R+r)l | 鐞冪殑琛ㄩ潰縐? | S=4pi*r2 | |
| 鍦嗘煴渚ч潰縐? | S=c*h=2pi*h | 鍦嗛敟渚ч潰縐? | S=1/2*c*l=pi*r*l | |
| 寮ч暱鍏紡 | l=a*r | a鏄渾蹇冭鐨勫姬搴︽暟r >0 | 鎵囧艦闈㈢Н鍏紡 | s=1/2*l*r |
| 閿ヤ綋浣撶Н鍏紡 | V=1/3*S*H | 鍦嗛敟浣撲綋縐叕寮?/td> | V=1/3*pi*r2h | |
| 鏂滄1鏌變綋縐? | V=S'L | 娉細鍏朵腑,S'鏄洿鎴潰闈㈢Н錛?L鏄晶媯遍暱 | ||
| 鏌變綋浣撶Н鍏紡 | V=s*h | 鍦嗘煴浣? | V=pi*r2h | |
|
Symbol
|
Name | Explanation | Examples | Unicode Value |
|---|---|---|---|---|
| Should be read as | ||||
| Category | ||||
|
⇒
→ ⊃ |
material implication | A ⇒ B means if A is true then B is also true; if A is false then nothing is said about B. → may mean the same as ⇒ (the symbol may also indicate the domain and codomain of a function; see table of mathematical symbols). ⊃ may mean the same as ⇒ (the symbol may also mean superset). |
x = 2 ⇒ x2 = 4 is true, but x2 = 4 ⇒ x = 2 is in general false (since x could be −2). | 8658 8594 8835 |
| implies; if .. then | ||||
| propositional logic, Heyting algebra | ||||
|
⇔
≡ ↔ |
material equivalence | A ⇔ B means A is true if B is true and A is false if B is false. | x + 5 = y +2 ⇔ x + 3 = y | 8660 8596 |
| if and only if; iff | ||||
| propositional logic | ||||
|
¬
˜ |
logical negation | The statement ¬A is true if and only if A is false. A slash placed through another operator is the same as "¬" placed in front. |
¬(¬A) ⇔ A x ≠ y ⇔ ¬(x = y) |
172 732 |
| not | ||||
| propositional logic | ||||
|
鈭?
& |
logical conjunction | The statement A 鈭?B is true if A and B are both true; else it is false. | n < 4 鈭?nbsp; n >2 ⇔ n = 3 when n is a natural number. | 8743 38 |
| and | ||||
| propositional logic | ||||
|
鈭?/div>
|
logical disjunction | The statement A 鈭?B is true if A or B (or both) are true; if both are false, the statement is false. | n ≥ 4 鈭?nbsp; n ≤ 2 ⇔ n ≠ 3 when n is a natural number. | 8744 |
| or | ||||
| propositional logic | ||||
⊕
鈯?/span> |
exclusive or | The statement A ⊕ B is true when either A or B, but not both, are true. A 鈯?/span> B means the same. | (¬A) ⊕ A is always true, A ⊕ A is always false. | 8853 8891 |
| xor | ||||
| propositional logic, Boolean algebra | ||||
鈯?br>
T 1 |
logical truth | The statement 鈯?is unconditionally true. | A ⇒ 鈯?is always true. | 8868 |
| top | ||||
| propositional logic, Boolean algebra | ||||
⊥
F 0 |
logical falsity | The statement ⊥ is unconditionally false. | ⊥ ⇒ A is always true. | 8869 |
| bottom | ||||
| propositional logic, Boolean algebra | ||||
|
∀
|
universal quantification | ∀ x: P(x) means P(x) is true for all x. | ∀ n ∈ N: n2 ≥ n. | 8704 |
| for all; for any; for each | ||||
| predicate logic | ||||
|
∃
|
existential quantification | ∃ x: P(x) means there is at least one x such that P(x) is true. | ∃ n ∈ N: n is even. | 8707 |
| there exists | ||||
| first-order logic | ||||
|
∃!
|
uniqueness quantification | ∃! x: P(x) means there is exactly one x such that P(x) is true. | ∃! n ∈ N: n + 5 = 2n. | 8707 33 |
| there exists exactly one | ||||
| first-order logic | ||||
|
:=
≡ :⇔ |
definition | x := y or x ≡ y means x is defined to be another name for y (but note that ≡ can also mean other things, such as congruence). P :⇔ Q means P is defined to be logically equivalent to Q. |
cosh x := (1/2)(exp x + exp (−x)) A XOR B :⇔ (A 鈭?nbsp;B) 鈭?nbsp;¬(A 鈭?nbsp;B) |
58 61 8801 58 8660 |
| is defined as | ||||
| everywhere | ||||
|
( )
|
precedence grouping | Perform the operations inside the parentheses first. | (8/4)/2 = 2/2 = 1, but 8/(4/2) = 8/2 = 4. | 40 41 |
| everywhere | ||||
|
鈯?/span>
|
inference | x 鈯?/span> y means y is derived from x. | A → B 鈯?/span> ¬B → ¬A | 8866 |
| infers or is derived from | ||||
| propositional logic, first-order logic |
|
| 絎﹀彿 |
鍚嶇О | 瀹氫箟 | 涓句緥 |
| 璇繪硶 | |||
| 鏁板棰嗗煙 | |||
| = |
絳夊彿 | x = y 琛ㄧず x 鍜?y 鏄浉鍚岀殑涓滆タ鎴栧叾鍊肩浉絳夈?/td> | 1 + 1 = 2 |
| 絳変簬 | |||
| 鎵鏈夐鍩?/td> | |||
| ≠ |
涓嶇瓑鍙?/td> | x ≠ y 琛ㄧず x 鍜?y 涓嶆槸鐩稿悓鐨勭殑涓滆タ鎴栨暟鍊箋?/td> | 1 ≠ 2 |
| 涓嶇瓑浜?/td> | |||
| 鎵鏈夐鍩?/td> | |||
| < > |
涓ユ牸涓嶇瓑鍙?/td> | x < y 琛ㄧず x 灝忎簬y銆?br> x > y 琛ㄧず x 澶т簬y銆?/td> | 3 < 4 5 > 4 |
| 灝忎簬錛屽ぇ浜?/td> | |||
| 搴忕悊璁?/td> | |||
| ≤ ≥ |
涓嶇瓑鍙?/td> | x ≤ y 琛ㄧず x 灝忎簬絳変簬y銆?br> x ≥ y 琛ㄧず x 澶т簬絳変簬y銆?/td> | 3 ≤ 4錛? ≤ 5 5 ≥ 4錛? ≥ 5 |
| 灝忎簬絳変簬錛屽ぇ浜庣瓑浜?/td> | |||
| 搴忕悊璁?/td> | |||
| + |
鍔犲彿 | 4 + 6 琛ㄧず 4 鍔?6銆?/td> | 2 + 7 = 9 |
| 鍔?/td> | |||
| 綆楁湳 | |||
| − |
鍑忓彿 | 9 − 4 琛ㄧず 9 鍑?4銆?/td> | 8 − 3 = 5 |
| 鍑?/td> | |||
| 綆楁湳 | |||
| 璐熷彿 | −3 琛ㄧず 3 鐨勮礋鏁般?/td> | −(−5) = 5 | |
| 璐?/td> | |||
| 綆楁湳 | |||
| 琛ラ泦 | A − B 琛ㄧず鍖呭惈鎵鏈夊睘浜?A 浣嗕笉灞炰簬 B 鐨勫厓绱犵殑闆嗗悎銆?/td> | {1,2,4} − {1,3,4} = {2} | |
| 鍑?/td> | |||
| 闆嗗悎璁?/td> | |||
| × |
涔樺彿 | 3 × 4 琛ㄧず 3 涔樹互 4銆?/td> | 7 × 8 = 56 |
| 涔樹互 | |||
| 綆楁湳 | |||
| 鐩寸Н | X × Y 琛ㄧず鎵鏈夌涓涓厓绱犲睘浜?X錛岀浜屼釜鍏冪礌灞炰簬 Y 鐨勬湁搴忓鐨勯泦鍚堛?/td> | {1,2} × {3,4} = {(1,3),(1,4),(2,3),(2,4)} | |
| … 鍜?#8230;鐨勭洿縐?/td> | |||
| 闆嗗悎璁?/td> | |||
| 鍙変箻 | u × v 琛ㄧず鍚戦噺 u 鍜?v 鐨勫弶涔樸?/td> | (1,2,5) × (3,4,−1) = (−22, 16, − 2) | |
| 鍙変箻 | |||
| 鍚戦噺浠f暟 | |||
| ÷ / |
闄ゅ彿 | 6 ÷ 3 鎴?6 / 3 琛ㄧず 6 闄や互 3銆?/td> | 2 ÷ 4 = 0.5 12/4 = 3 |
| 闄や互 | |||
| 綆楁湳 | |||
| √ |
鏍瑰彿 | √x 琛ㄧず鍏跺鉤鏂逛負 x 鐨勬鏁般?/td> | √4 = 2 |
| …鐨勫鉤鏂規牴 | |||
| 瀹炴暟 | |||
| 澶嶆牴鍙?/td> | 鑻ョ敤鏋佸潗鏍囪〃紺哄鏁?z = r exp(iφ)錛堟弧瓚?-π < φ ≤ π錛夛紝鍒?√z = √r exp(iφ/2)銆?/td> | √(-1) = i | |
| …鐨勫鉤鏂規牴 | |||
| 澶嶆暟 | |||
| | | |
緇濆鍊?/td> | |x| 琛ㄧず瀹炴暟杞達紙鎴栧騫抽潰錛変笂 x 鍜?0 鐨勮窛紱匯?/td> | |3| = 3, |-5| = |5| |i| = 1, |3+4i| = 5 |
| …鐨勭粷瀵瑰?/td> | |||
| 鏁?/td> | |||
| ! |
闃朵箻 | n! 琛ㄧず榪炰箻縐?1×2×…×n銆?/td> | 4! = 1 × 2 × 3 × 4 = 24 |
| …鐨勯樁涔?/td> | |||
| 緇勫悎璁?/td> | |||
| ~ |
姒傜巼鍒嗗竷 | X ~ D 琛ㄧず闅忔満鍙橀噺 X 姒傜巼鍒嗗竷涓?D銆?/td> | X ~ N(0,1)錛氭爣鍑嗘鎬佸垎甯?/td> |
| 婊¤凍鍒嗗竷 | |||
| 緇熻瀛?/td> | |||
| ⇒ → ⊃ |
瀹炶川钑存兜 | A ⇒ B 琛ㄧず A 鐪熷垯 B 涔熺湡錛?em>A 鍋囧垯 B 涓嶅畾銆?br> → 鍙兘鍜?⇒ 涓鏍? 鎴栬呮湁涓嬮潰灝嗘彁鍒扮殑鍑芥暟鐨勬剰鎬濄?br> ⊃ 鍙兘鍜?⇒ 涓鏍鳳紝鎴栬呮湁涓嬮潰灝嗘彁鍒扮殑鐖墮泦鐨勬剰鎬濄?/td> | x = 2 ⇒ x2 = 4 涓虹湡錛屼絾 x2 = 4 ⇒ x = 2 涓鑸儏鍐典笅涓哄亣錛堝洜涓?x 鍙互鏄?−2錛夈?/td> |
| 鎺ㄥ嚭錛岃嫢…鍒?… | |||
| 鍛介閫昏緫 | |||
| ⇔ ↔ |
瀹炶川絳変環 | A ⇔ B 琛ㄧず A 鐪熷垯 B 鐪燂紝A 鍋囧垯 B 鍋囥?/td> | x + 5 = y +2 ⇔ x + 3 = y |
| 褰撲笖浠呭綋 | |||
| 鍛介閫昏緫 | |||
| ¬ ˜ |
閫昏緫闈?/td> | 鍛介 ¬A 涓虹湡褰撲笖浠呭綋 A 涓哄亣銆?br> 灝嗕竴鏉℃枩綰跨┛榪囦竴涓鍙風浉褰撲簬灝?"¬" 鏀懼湪璇ョ鍙峰墠闈€?/td> | ¬(¬A) ⇔ A x ≠ y ⇔ ¬(x = y) |
| 闈烇紝涓?/td> | |||
| 鍛介閫昏緫 | |||
| 鈭?/font> |
閫昏緫涓庢垨浜よ繍綆?/td> | 鑻?A 涓虹湡涓?B 涓虹湡錛屽垯鍛介 A 鈭?B 涓虹湡錛涘惁鍒欎負鍋囥?/td> | n < 4 鈭?nbsp; n >2 ⇔ n = 3錛屽綋 n 鏄嚜鐒舵暟 |
| 涓?/td> | |||
| 鍛介閫昏緫錛屾牸鐞嗚 | |||
| 鈭?/font> |
閫昏緫鎴栨垨騫惰繍綆?/td> | 鑻?A 鎴?B錛堟垨閮斤級涓虹湡錛屽垯鍛介 A 鈭?B 涓虹湡錛涜嫢涓よ呴兘鍋囧垯鍛介涓哄亣銆?/td> | n ≥ 4 鈭?nbsp; n ≤ 2 ⇔ n ≠ 3錛屽綋 n 鏄嚜鐒舵暟 |
| 鎴?/td> | |||
| 鍛介閫昏緫錛屾牸鐞嗚 | |||
⊕ 鈯?/font> |
寮傛垨 | 鑻?A 鍜?B 鍒氬ソ鏈変竴涓負鐪燂紝鍒欏懡棰?A ⊕ B 涓虹湡銆?br> A 鈯?B 鐨勬剰涔夌浉鍚屻?/td> | (¬A) ⊕ A 鎭掍負鐪燂紝A ⊕ A 鎭掍負鍋囥?/td> |
| 寮傛垨 | |||
| 鍛介閫昏緫錛屽竷灝斾唬鏁?/td> | |||
| ∀ |
鍏ㄧО閲?span class=t_tag onclick=tagshow(event) href="tag.php?name=%E8%AF%8D">璇?/span> | ∀ x: P(x) 琛ㄧず P(x) 瀵逛簬鎵鏈?x 涓虹湡銆?/td> | ∀ n ∈ N: n2 ≥ n |
| 瀵規墍鏈夛紱瀵逛換鎰忥紱瀵逛換涓 | |||
| 璋撹瘝閫昏緫 | |||
| ∃ |
瀛樺湪閲忚瘝 | ∃ x: P(x) 琛ㄧず瀛樺湪鑷沖皯涓涓?x 浣垮緱 P(x) 涓虹湡銆?/td> | ∃ n ∈ N: n 涓哄伓鏁?/td> |
| 瀛樺湪 | |||
| 璋撹瘝閫昏緫 | |||
| ∃! |
鍞竴閲忚瘝 | ∃! x: P(x) 琛ㄧず鏈変笖浠呮湁涓涓?x 浣垮緱 P(x) 涓虹湡銆?/td> | ∃! n ∈ N: n + 5 = 2n |
| 瀛樺湪鍞竴 | |||
| 璋撹瘝閫昏緫 | |||
| := ≡ :⇔ |
瀹氫箟 | x := y 鎴?x ≡ y 琛ㄧず x 瀹氫箟涓?y鐨勪竴涓悕瀛楋紙娉ㄦ剰錛?#8801; 涔熷彲琛ㄧず鍏跺畠鎰忔? 渚嬪鍏ㄧ瓑錛夈?br> P :⇔ Q 琛ㄧず P 瀹氫箟涓?Q 鐨勯昏緫絳変環銆?/td> | cosh x := (1/2)(exp x + exp (−x)) A XOR B :⇔ (A 鈭?B) 鈭?¬(A 鈭?B) |
| 瀹氫箟涓?/td> | |||
| 鎵鏈夐鍩?/td> | |||
| { , } |
闆嗗悎鎷彿 | {a,b,c} 琛ㄧず a, b,c 緇勬垚鐨勯泦鍚堛?/td> | N = {0,1,2,…} |
| …鐨勯泦鍚?/td> | |||
| 闆嗗悎璁?/td> | |||
| { : } { | } |
闆嗗悎鏋勯犺鍙?/td> | {x : P(x)} 琛ㄧず鎵鏈夋弧瓚?P(x) 鐨?x 鐨勯泦鍚堛?br> {x | P(x)} 鍜?{x : P(x)} 鐨勬剰涔夌浉鍚屻?/td> | {n ∈ N : n2 < 20} = {0,1,2,3,4} |
| 婊¤凍…鐨勯泦鍚?/td> | |||
| 闆嗗悎璁?/td> | |||
| ∅ {} |
絀洪泦 | ∅ 琛ㄧず娌℃湁鍏冪礌鐨勯泦鍚堛?br> {} 鐨勬剰涔夌浉鍚屻?/td> | {n ∈ N : 1 < n2 < 4} = ∅ |
| 絀洪泦 | |||
| 闆嗗悎璁?/td> | |||
| ∈ ∉ |
闆嗗悎灞炰簬 | a ∈ S 琛ㄧず a 灞炰簬闆嗗悎 S錛?em>a ∉ S 琛ㄧず a 涓嶅睘浜?S銆?/td> | (1/2)−1 ∈ N 2−1 ∉ N |
| 灞炰簬錛涗笉灞炰簬 | |||
| 鎵鏈夐鍩?/td> | |||
| ⊆ ⊂ |
瀛愰泦 | A ⊆ B 琛ㄧず A 鐨勬墍鏈夊厓绱犲睘浜?B銆?br> A ⊂ B 琛ㄧず A ⊆ B 浣?A ≠ B銆?/td> | A ∩ B ⊆ A錛?strong>Q ⊂ R |
| …鐨勫瓙闆?/td> | |||
| 闆嗗悎璁?/td> | |||
| ⊇ ⊃ |
鐖墮泦 | A ⊇ B 琛ㄧず B 鐨勬墍鏈夊厓绱犲睘浜?A銆?br> A ⊃ B 琛ㄧず A ⊇ B 浣?A ≠ B銆?/td> | A ∪ B ⊇ B錛?strong>R ⊃ Q |
| …鐨勭埗闆?/td> | |||
| 闆嗗悎璁?/td> | |||
| ∪ |
騫墮泦 | A ∪ B 琛ㄧず鍖呭惈鎵鏈?A 鍜?B 鐨勫厓绱犱絾涓嶅寘鍚換浣曞叾浠栧厓绱犵殑闆嗗悎銆?/td> | A ⊆ B ⇔ 錛?em>A ∪ B = B |
| …鍜?#8230;鐨勫茍闆?/td> | |||
| 闆嗗悎璁?/td> | |||
| ∩ |
浜ら泦 | A ∩ B 琛ㄧず鍖呭惈鎵鏈夊悓鏃跺睘浜?A 鍜?B 鐨勫厓绱犵殑闆嗗悎銆?/td> | {x ∈ R : x2 = 1} ∩ N = {1} |
| …鍜?#8230;鐨勪氦闆?/td> | |||
| 闆嗗悎璁?/td> | |||
| \ |
琛ラ泦 | A \ B 琛ㄧず鎵鏈夊睘浜?A 浣嗕笉灞炰簬 B 鐨勫厓绱犵殑闆嗗悎銆?/td> | {1,2,3,4} \ {3,4,5,6} = {1,2} |
| 鍑忥紱闄ゅ幓 | |||
| 闆嗗悎璁?/td> | |||
| ( ) |
鍑芥暟搴旂敤 | f(x) 琛ㄧず f 鍦?x 鐨勫箋?/td> | f(x) := x2錛屽垯 f(3) = 32 = 9銆?/td> |
| f(x) | |||
| 闆嗗悎璁?/td> | |||
| 浼樺厛緇勫悎 | 鍏堟墽琛屾嫭鍙峰唴鐨勮繍綆椼?/td> | (8/4)/2 = 2/2 = 1錛?/(4/2) = 8/2 = 4 | |
| 鎵鏈夐鍩?/td> | |||
| ƒ :X →Y |
鍑芥暟綆ご | ƒ: X → Y 琛ㄧず ƒ 浠庨泦鍚?X 鏄犲皠鍒伴泦鍚?Y銆?/td> | 璁?em>ƒ: Z → N 瀹氫箟涓?ƒ(x) = x2銆?/td> |
| 浠?#8230;鍒?#8230; | |||
| 闆嗗悎璁?/td> | |||
| 鈨?/font> |
澶嶅悎鍑芥暟 | f鈨?em>g 鏄竴涓嚱鏁幫紝浣垮緱 (f鈨?em>g)(x) = f(g(x))銆?/td> | 鑻?f(x) = 2x錛屼笖 g(x) = x + 3錛屽垯 (fog)(x) = 2(x + 3)銆?/td> |
| 澶嶅悎 | |||
| 闆嗗悎璁?/td> | |||
N 鈩?/font> |
鑷劧鏁?/td> | N 琛ㄧず {0,1,2,3,…}錛屽彟涓瀹氫箟鍙傝鑷劧鏁版潯鐩?/td> | {|a| : a ∈ Z} = N |
| N | |||
| 鏁?/td> | |||
Z 鈩?/font> |
鏁存暟 | Z 琛ㄧず {…,−3,−2,−1,0,1,2,3,…}銆?/td> | {a : |a| ∈ N} = Z |
| Z | |||
| 鏁?/td> | |||
Q 鈩?/font> |
鏈夌悊鏁?/td> | Q 琛ㄧず {p/q : p,q ∈ Z, q ≠ 0}銆?/td> | 3.14 ∈ Q π ∉ Q |
| Q | |||
| 鏁?/td> | |||
R 鈩?/font> |
瀹炴暟 | R 琛ㄧず {limn→∞ an : ∀ n ∈ N: an ∈ Q, 鏋侀檺瀛樺湪}銆?/td> | π ∈ R √(−1) ∉ R |
| R | |||
| 鏁?/td> | |||
C 鈩?/font> |
澶嶆暟 | C 琛ㄧず {a + bi : a,b ∈ R}銆?/td> | i = √(−1) ∈ C |
| C | |||
| 鏁?/td> | |||
| ∞ |
鏃犵┓ | ∞ 鏄墿灞曠殑瀹炴暟杞翠笂澶т簬浠諱綍瀹炴暟鐨勬暟錛涢氬父鍑虹幇鍦ㄦ瀬闄愪腑銆?/td> | limx→0 1/|x| = ∞ |
| 鏃犵┓ | |||
| 鏁?/td> | |||
| π |
鍦嗗懆鐜?/td> | π 琛ㄧず鍦嗗懆闀垮拰鐩村緞涔嬫瘮銆?/td> | A = πr² 鏄崐寰勪負 r 鐨勫渾鐨勯潰縐?/td> |
| pi | |||
| 鍑犱綍 | |||
| || || |
鑼冩暟 | ||x|| 鏄祴鑼冪嚎鎬х┖闂村厓绱?x 鐨勮寖鏁般?/td> | ||x+y|| ≤ ||x|| + ||y|| |
| …鐨勮寖鏁幫紱…鐨勯暱搴?/td> | |||
| 綰挎т唬鏁?/td> | |||
| 鈭?/font> |
姹傚拰 | 鈭?em>k=1n ak 琛ㄧず a1 + a2 + … + an. | 鈭?em>k=14 k2 = 12 + 22 + 32 + 42 = 1 + 4 + 9 + 16 = 30 |
| 浠?#8230;鍒?#8230;鐨勫拰 | |||
| 綆楁湳 | |||
| ∏ |
姹傜Н | ∏k=1n ak 琛ㄧず a1a2···an. | ∏k=14 (k + 2) = (1 + 2)(2 + 2)(3 + 2)(4 + 2) = 3 × 4 × 5 × 6 = 360 |
| 浠?#8230;鍒?#8230;鐨勭Н | |||
| 綆楁湳 | |||
| 鐩寸Н | ∏i=0nYi 琛ㄧず鎵鏈?(n+1)-鍏冪粍 (y0,…,yn)銆?/td> | ∏n=13R = Rn | |
| …鐨勭洿縐?/td> | |||
| 闆嗗悎璁?/td> | |||
| ' |
瀵兼暟 | f '(x)鍑芥暟f鍦?em>x鐐圭殑鍊掓暟, 涔熷氨鏄? 閭i噷鐨勫垏綰挎枩鐜囥?/td> | 鑻?f(x) = x2, 鍒?f '(x) = 2x |
| … 鎾? …鐨勫鏁?/td> | |||
| 寰Н鍒?/td> | |||
| ∫ |
涓嶅畾縐垎 鎴?鍙嶅鏁?/td> | ∫ f(x) dx 琛ㄧず瀵兼暟涓?em>f鐨勫嚱鏁? | ∫x2 dx = x3/3 |
| …鐨勪笉瀹氱Н鍒? …鐨勫弽瀵兼暟 | |||
| 寰Н鍒?/td> | |||
| 瀹氱Н鍒?/td> | ∫ab f(x) dx 琛ㄧず x-杞村拰 f 鍦?x = a鍜?em>x = b涔嬮棿鐨勫嚱鏁板浘鍍忔墍澶規垚鐨勫甫絎﹀彿闈㈢Н銆?/td> | ∫0b x2 dx = b3/3; | |
| 浠?#8230;鍒?#8230;浠?#8230;涓哄彉閲忕殑縐垎 | |||
| 寰Н鍒?/td> | |||
| ∇ |
姊害 | ∇f (x1, …, xn) 鍋忓鏁扮粍鎴愮殑鍚戦噺 (df / dx1, …, df / dxn). | 鑻?f (x,y,z) = 3xy + z² 鍒?∇f = (3y, 3x, 2z) |
| …鐨?del鎴杗abla鎴栨搴? | |||
| 寰Н鍒?/td> | |||
| ∂ |
鍋忓鏁?/td> | 璁炬湁f (x1, …, xn), ∂f/∂xi鏄?em>f鐨勫浜巟i鐨勫綋鍏朵粬鍙橀噺淇濇寔涓嶅彉鏃剁殑瀵兼暟. | 鑻?f(x,y) = x2y, 鍒?∂f/∂x = 2xy |
| …鐨勫亸瀵兼暟 | |||
| 寰Н鍒?/td> | |||
| 杈圭晫 | ∂M 琛ㄧずM鐨勮竟鐣?/td> | ∂{x : ||x|| ≤ 2} = {x : || x || = 2} |
|
| …鐨勮竟鐣?/td> | |||
| 鎷撴墤 | |||
| ⊥ |
鍨傜洿 | x ⊥ y 琛ㄧず x 鍨傜洿浜?em>y; 鏇翠竴鑸殑 x姝d氦浜?em>y. | 鑻?l⊥m鍜?em>m⊥n 鍒?l || n. |
| 鍨傜洿浜?/td> | |||
| 鍑犱綍 | |||
| 搴曞厓绱?/td> | x = ⊥ 琛ㄧず x鏄渶灝忕殑鍏冪礌. | ∀x : x 鈭?⊥ = ⊥ | |
| 搴曞厓绱?/td> | |||
| 鏍肩悊璁?/td> | |||
| 鈯?/font> |
钑村惈 | A 鈯?B 琛ㄧずA钑村惈B, 鍦?em>A鎴愮珛鐨勬瘡涓?妯″瀷涓紝 B涔熸垚绔? | A 鈯?A 鈭?¬A |
| 钑村惈錛?/td> | |||
| 妯″瀷璁?/td> | |||
| 鈯?/font> |
鎺ㄥ | x 鈯?y 琛ㄧず y 鐢?x瀵煎嚭. | A → B 鈯?¬B → ¬A |
| 浠?#8230;瀵煎嚭 | |||
| 鍛介閫昏緫, 璋撹瘝閫昏緫 | |||
| 鈼?/font> |
姝e垯瀛愮兢 | N 鈼?G 琛ㄧず N鏄?em>G鐨勬鍒欏瓙緹? | Z(G) 鈼?G |
| 鏄?#8230;鐨勬鍒欏瓙緹?/td> | |||
| 緹よ | |||
| / |
鍟嗙兢 | G/H 琛ㄧずG 妯″叾瀛愮兢H鐨勫晢緹? | {0, a, 2a, b, b+a, b+2a} / {0, b} = {{0, b}, {a, b+a}, {2a, b+2a}} |
| 妯?/td> | |||
| 緹よ | |||
| 鈮?/font> |
鍚屾瀯 | G 鈮?H 琛ㄧず G 鍚屾瀯浜?H | Q / {1, −1} 鈮?V, 鍏朵腑 Q 鏄洓鍏冩暟緹?V 鏄?鍏嬭幈鍥犲洓緹? |
| 涔﹀悕 | 浣滆?/font> | 鍑虹増紺?/font> | 綆浠?/font> | 騫翠喚 | 閫傚悎璇昏?/font> | 鎺ㄨ崘鎸囨暟 |
| 鏁板鍒嗘瀽 | 銆 | |||||
| 銆婂井縐垎銆?/font> | 銆愮編銆?D.浼戞柉.鍝堥浄鐗?A.M.鍏嬭幈閫?絳夎憲 | 楂樼瓑鏁欒偛鍑虹増紺?/font> | 緹庡浗鍥藉縐戝鍩洪噾浼氳祫鍔╋紝浠ュ搱寮楀ぇ瀛︿負棣栫殑鍚堜綔緇勭紪鍐?/font> | 2000 | 鍒濈駭 | 寮虹儓鎺ㄨ崘 |
| 銆婇噸娓╁井縐垎銆?/font> | 榻愭皯鍙?/font> | 楂樼瓑鏁欒偛鍑虹増紺?/font> | 榪欐湰涔﹀亣璁捐鑰呭湪瀛﹁繃寰Н鍒嗙殑鍩虹涓婏紝瀵瑰井縐垎鐭ヨ瘑鍔犱互鎷撳睍 | 2004 | 涓駭 | 鎺ㄨ崘 |
| 銆婃極璋堟暟瀛﹀垎鏋愪腑鐨勬洸綰夸笌鏇查潰銆?/font> | 銆鑼冪鍚?/font> | 銆楂樼瓑鏁欒偛鍑虹増紺?/font> | 璋堣鏇茬嚎涓庢洸闈㈢殑澶氱妯″瀷錛屼互鍙婄壒孌婃儏鍐碉紝娑夊強寰垎錛岄泦鍚堣錛屾嫇鎵戝錛屽垎褰㈢悊璁虹瓑澶氭柟闈㈡暟瀛︾煡璇嗐 | 2001銆 | 鍒濈駭銆 | 鎺ㄨ崘銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |
| 銆 | 銆 | 銆 | 銆 | 銆 | 銆 | 銆 |