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数学符号英文说法和发音大全!!各路出国党不妨看过来!  

2013-09-03 18:42:42|  分类: fun |  标签: |举报 |字号 订阅

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Symbols 

+plus/'pl?s/
-minus/'ma?n?s/
±plus or minus/'pl?s  ?:  'ma?n?s/
xmultiplied by/'m?lt?pla?d ba?/
/over; divided by/'??v?/ /d?'va?d?d/
÷divided/d?'va?d?d/
=equals/'?:kw?lz/
approximately, similar/?'pr?ks?m?tl?/ /'s?m?l? t?/
equivalent to; identical/?k'w?v?l?nt t?/ /a?'dent?kl t?/
≠ not equal to/'n?t 'i?kw?l t?/
greater than/'gre?t? ??n/
less than/'les ??n/
≥ greater than or equal to/'gre?t? ??n ?r 'i?kw?l t?/
≤ less than or equal to/'les ??n ?r' i?kw?l t?/
?not greater than/'n?t 'gre?t? ??n/
?not less than/'n?t 'les ??n/
?much greater than/'m?? 'gre?t? ??n/
?much less than/'m?? 'les ??n/
perpendicular to/p??p?n'd?kj?l? t?/
∣∣parallel to/'p?r?lel t?/
?not equivalent to, not identical to/'n?t ?k'w?v?l?nt t?/ /'n?t a?'dent?kl t?/
??not similar to/'n?t 's?m?l? t?/
?squared/'skwe?d/
?cubed/'kju:bd/
4to the fourth;  to the power four/t? ?? 'f??θ/ /te ?? 'pɑ?? f??/
n to the n; to the nth; to the power n/t? ?? en; t? d? enθ; t? ?? pɑ??r en/
root; square root/ru:t/ /skwe? ru:t/
?cube root/kju:b ru:t/
?fourth root /f??θ ru?t/
!factorial/f?k't??r??l/
%percent/p?'sent/
infinity/?n'f?n?t?/
varies as; proportional to/'v??r?z/  /pr?'p????n?l/
˙dot/d?t/
¨double dot/d?bl d?t/
:is to, ratio of/re?????/
f(x) fxf; function/ef/ /'f??k??n/
f'(x)f dash; derivative /d??/ /d?'r?v?t?v/
f''xf double-dash; second derivative/'d?bl d??/ /'sek?nd d?'r?v?t?v/
f'''(x)f triple-dash; f treble-dash; third derivative/'tr?pl d??/ / trebl d??/ /θ?:d d?'r?v?t?v/
f(4)f four; fourth derivative /f??θ d?'r?v?t?v/
?partial derivative, delta/pa???l d?'r?v?t?v/ /delt?/
integral/'?nt?gr?l/
sum/s?m/
w.r.t.with respect to/w?? 'r?spekt/
loglog /l?g/
log?xlog to the base 2 of x/l?g t? ?? be?s tu: ?v eks/
therefore/'???f??/
because/b?'k?z/
gives, leads to, approaches/g?vz/ /li:dz t?/ /?pr????z/
/per/p?:/
belongs to; a member of;  an element of/b?'l??z/ /'memb?/ /'el?m?nt/
?does not belong to; is not a member of; is not an element of/n?t b?'l??/ /n?t ? 'memb?/ /n?t ?n 'el?m?nt/
?contained in;  a proper subset of/k?n'te?nd ?n/ /'pr?p? 's?bset/
?contained in; subset /'s?bset/
?intersection/'?nt?sek??n/
?union/'ju?n??n/
?for all/f? r?:l/
cos xcos x; cosine x/k?z/
sin xsine x/sa?n/
tan xtangent x/tan/
cosec xcosec x/'k??sek/
sinh xshine x/'?a?n/
cosh xcosh x/'k??/
tanh xthan x/θ?n/
|x|mod x; modulus x/m?d/ /'m?dj?l?s/
degrees Centigrade/d?'gri:z 'sent?gre?d/
degrees Fahrenheit/d?'gri:z 'f?r?nha?t/
°Kdegrees Kelvin/d?'gri:z 'kelv?n/
0°K, –273.15 °Cabsolute zero/abs?lu:t zi:r??/
mmmillimetre/'m?l?mi?t?/
cmcentimetre/'sent?mi?t?/
cc, cm?cubic centimetre, centimetre cubed/'kju?b?k 'sent?mi?t?/ /'sent?mi?t? 'kju:bd/
mmetre/'mi?t?/
kmkilometre/k?'l?m?t?/
mgmilligram/'m?l?gr?m/
ggram/gr?m/
kgkilogram/'k?l?gr?m/
ACA.C./e? si:/
DCD.C./di: si:/ 




Examples 

x + 1x plus one
x -1x minus one
x ± 1x plus or minus one
xyx y;  x times y; x multiplied by y
(x — y)(x + y) x minus y, x plus y
x/yx over y;  x divided by y;
x ÷ yx divided by y
x = 5x equals 5;  x is equal to 5
x ≈ yx is approximately equal to y
x ≡ yx is equivalent to y;  x is identical with y
x ≠ yx is not equal to y
x > y x is greater than y
x < y x is less than y
x ≥ yx is greater than or equal to y
x ≤ yx is less than or equal to y
0 < x < 1zero is less than x is less than 1; x is greater than zero and less than 1
0 ≤ x ≤ 1zero is less than or equal to x is less than or equal to 1; x is greater than or equal to zero and less than or equal to 1
x?x squared
x?x cubed
x4x to the fourth;  x to the power four
xnx to the n; x to the nth;  x to the power n
x-nx to the minus n;  x to the power of minus n
root x; square root x; the square root of x
?the cube root of x
?the fourth root of x
 the nth root of x
(x + y)?x plus y all squared
(x/y)?x over y all squared
n!n factorial; factorial n
x%x percent
infinity
x ∝ yx varies as y; x is (directly) proportional to y
x ∝ 1/yx varies as one over y; x is indirectly proportional to y
?x dot
?x double dot
f(x) fxf of x; the function of x
f'(x)f dash x; the (first) derivative of with respect to x
f''xf double-dash x; the second derivative of f with respect to x
f'''(x)f triple-dash x; f treble-dash x; the third derivative of f with respect to x
f(4)f four x; the fourth derivative of f with respect to x
?vthe partial derivative of v
?vdelta v by delta theta, the partial derivative of v with respect to θ
??v?θ?delta two v by delta theta squared; the second partial derivative of v with respect to θ
dvthe derivative of v
dvd v by d theta, the derivative of v with respect to theta
d?vdθ?d 2 v by d theta squared, the second derivative of v with respect to theta, 
integral
 integral from zero to infinity
sum
 the sum from i equals 1 to n
w.r.t.with respect to
logeylog to the base e of y; log y to the base e; natural log (of) y
therefore
because
gives, approaches
Δx → 0delta x approaches zero
limΔx→0the limit as delta x approaches zero, the limit as delta x tends to zero
LtΔx→0the limit as delta x approaches zero, the limit as delta x tends to zero
m/secmetres per second
x ∈ Ax belongs to A; x is a member of A; x is an element of A
x? Ax does not belong to A; x is not  a member of A; x is not an element of A
A? BA is contained in B; A is a proper subset of B
A ? BA is contained in B; A is a subset of B
A ? BA intersection B
A ? BA union B
cos xcos x; cosine x
sin xsine x
tan xtangent x, tan x
cosec xcosec x
sinh xshine x
cosh xcosh x
tanh xthan x
|x|mod x; modulus x
18 ℃eighteen degrees Centigrade
70 ℉seventy degrees Fahrenheit



Greek alphabet 

Ααalpha/'?lf?/
Ββbeta/'bi:t?/
Γγgamma/'g?m?/
Δδdelta/'delt?/
Εεepsilon/'epsil?n/
Ζζzeta/'zi?t?/
Ηηeta/'i?t?/
Θθtheta/'θi?t?/
Ιιiota/a?'??t?/
Κκkappa/'k?p?/
Λλlamda/'l?md?/
Μμmu/'mju?/
Ννnu/'nju?/
Ξξxi/'ksa?/
Οοomicron/'??m?kr?n/
Ππpi/'pa?/
Ρρ?rho/'r??/
Σσsigma/'s?gm?/
Ττtau/'tɑ?/
Υυupsilon/'j?ps?l?n/
Φφphi/'fa?/
Χχchi/'ka?/
Ψψpsi/'psa?/
Ωωomega/'??m?g?/


Roman alphabet 

Aa/'e?/
Bb/'bi?/
Cc/'si?/
Dd/'di?/
Ee/'i?/
Ff/'ef/
Gg/'?i?/
Hh/'e??/
Ii/'a?/
Jj/'?e?/
Kk/'ke?/
Ll/'el/
Mm/'em/
Nn/'en/
Oo/'??/
Pp/'pi?/
Qq/'kju?/
Rr/'ɑ?/
Ss/'es/
Tt/'ti:/
Uu/'ju:/
Vv/'vi:/
Ww/'d?blju?/
Xx/'eks/
Yy/'wa?/
Zz/'zed/


Fractions 

?a half/? 'hɑ:f/
?a quarter/? 'kw??t?/
?three quarters/θri? 'kw??t?z/
?a third/? 'θ?:d/
?two thirds/tu: 'θ?:dz/
?a fifth/? 'f?fθ/
?two fifths/tu: 'f?fθs/
?three fifths/θri? 'f?fθs/
?four fifths/f?? 'f?fθs/
?a sixth/? 's?ksθ/
?five sixths/fa?v 's?ksθs/
?an eighth/?n 'e?tθ/
?three eighths/θri? 'e?tθs/
?five eighths/fa?v 'e?tθs/
?seven eighths/sev?n 'e?tθs/


Decimal Fractions 

0.1nought point one/n?:t p??nt w?n/
0.01nought point oh one/n?:t p??nt ?? w?n/
0.0001nought point oh oh oh one/ten p??nt ?? ?? ?? w?n/
1.1one point one/w?n p??nt w?n/
1.2one point two/w?n p??nt tu:/
1.23one point two three/w?n p??nt tu: θri:/
1.0123one point oh one two three/w?n p??nt ?? w?n tu: θri:/
10.01ten point oh one/ten p??nt ?? w?n/
21.57twenty-one point five seven/'twent? w?n p??nt  fa?v 'sev?n/
2.6666666666....two point six recurring/tu: p??nt  s?ks r?'k?:r??/
2.612361236123...two point six one two three recurring/tu: p??nt  s?ks w?n tu: θri: r?'k?:r??/
2.5 milliontwo point five million/tu: p??nt  fa?v 'm?lj?n/


SI Units: Prefixes 

10-24yoctoy/'j?kt??/
10-21zeptoz/'zept??/
10-18attoa/'at??/
10-15femtof/'femt??/
10-12picop/'pi:k??/
10-9nanon/'nan??/
10-6micro?/'ma?kr??/
10-3millim/'m?l?/
10-2centic/'sent?/
10-1decid/'des?/
103kilok/'k?l??/
106megaM/'meg?/
109gigaG/'g?g?/
1012teraT/'ter?/
1015petaP/'pet?/
1018exaE/'eks?/
1021zettaZ/'zet?/
1024yottaY/'j?t?/
1027xonaX/'z??n?/
1030wekaW/'wek?/
1033vundaV/'v?nd?/


Cardinal Numbers 

1one/w?n/
2two/tu:/
3three/θri:/
4four/f??/
5five/fa?v/
6six/s?ks/
7seven/'sev?n/
8eight/e?t/
9nine/na?n/
10ten/ten/
11eleven/?'lev?n/
12twelve/twelv/
13thirteen/θ?:'ti:n/
14fourteen/f??'ti:n/
15fifteen/f?f'ti:n/
16sixteen/s?kst'i:n/
17seventeen/seven'ti:n/
18eighteen/e?'ti:n/
19nineteen/na?n'ti:n/
20twenty/'twent?/
21twenty-one/twent?'w?n/
22twenty-two/twent?'tu:/
23twenty-three/twent?'θri:/
24twenty-four/twent?'f??/
25twenty-five/twent?'fa?v/
26twenty-six/twent?'s?ks/
27twenty-seven/twent?'sev?n/
28twenty-eight/twent?'e?t/
29twenty-nine/twent?'na?n/
30thirty/'θ?:t?/
40forty/'f??t?/
50fifty/'f?ft?/
60sixty/'s?kst?/
70seventy/'sev?nt?/
80eighty/'e?t?/
90ninety/'na?nt?/
100a hundred; one hundred/? 'h?ndr?d/ /w?n 'h?ndr?d/
101a hundred and one/? 'h?ndr?d ?n w?n/
102a hundred and two/? 'h?ndr?d ?n tu:/
110a hundred and ten/? 'h?ndr?d ?n ten/
120a hundred and twenty/? 'h?ndr?d ?n 'twent?/
200two hundred/tu: 'h?ndr?d/
300three hundred/θri:  'h?ndr?d/
400four hundred/f?? 'h?ndr?d/
500five hundred/fa?v 'h?ndr?d/
600six hundred/s?ks 'h?ndr?d/
700seven hundred/'sev?n 'h?ndr?d/
800eight hundred/e?t 'h?ndr?d/
900nine hundred/na?n 'h?ndr?d/
1 000a thousand, one thousand/? θ'ɑ?z?nd/ /w?n 'θɑ?z?nd/
1 001a thousand and one/? 'θɑ?z?nd ?n w?n/
1 010a thousand and ten/? 'θɑ?z?nd ?n ten/
1 020a thousand and twenty/? 'θɑ?z?nd ?n 'twent?/
1 100one thousand, one hunded/w?n 'θɑ?z?nd w?n 'h?ndr?d/
1 101one thousand, one hundred and one/w?n 'θɑ?z?nd w?n 'h?ndr?d ?n w?n/
1 110one thousand, one hundred and ten/w?n 'θɑ?z?nd w?n 'h?ndr?d ?n ten/
9 999nine thousand, nine hundred and ninety-nine/na?n 'θɑ?z?nd na?n 'h?ndr?d ?n 'na?nt? 'na?n/
10 000ten thousand/ten 'θɑ?z?nd/
15 356fifteen thousand, three hundred and fifty six/'f?fti:n 'θɑ?z?nd θri: 'h?ndr?d ?n 'f?ft? s?ks/
100 000a hundred thousand/? 'h?ndr?d 'θɑ?z?nd/
1 000 000a million/? 'm?lj?n/
100 000 000a hundred million/? 'h?ndr?d 'm?lj?n/
1 000 000 000a billion/? 'b?lj?n/
100 000 000 000a hundred billion/? 'h?ndr?d 'b?lj?n/
1 000 000 000 000a trillion/? 'tr?lj?n/
1 000 000 000 000 000a quadrillion/? kw?dr?lj?n/
1 000 000 000 000 000 000a quintillian/? kw?n't?lj?n/
1 000 000 000 000 000 000 000a sextillion/? seks't?lj?n/
1 000 000 000 000 000 000 000 000a septillion/? sep't?lj?n/
1 000 000 000 000 000 000 000 000 000an ocillion/?n ?kt't?lj?n/
1 000 000 000 000 000 000 000 000 000 000a nonillion/? n?n'?lj?n/
1 000 000 000 000 000 000 000 000 000 000 000a decillion/? de's?lj?n/


Ordinal Numbers 

1stfirst/f?:st/
2ndsecond/'sek?nd/
3rdthird/θ?:d/
4thfourth/f?:θ/
5thfifth/f?fθ/
6thsixth/s?ksθ/
7thseventh/'sev?nθ/
8theighth/e?tθ/
9thninth/na?nθ/
10thtenth/tenθ/
11theleventh/?'lev?nθ/
12thtwelfth/'twelfθ/
13ththirteenth/θ?:'ti:nθ/
14thfourtheenth/f??'ti:nθ/
15thfidteenth/f?f'ti:nθ/   
16thsixteenth/s?ks'ti:nθ/
17thseventeenth/seven'ti:nθ/
18theighteenth/e?'ti:nθ/
19thnineteenth/na?n'ti:nθ/
20thtwentieth/'twent??θ/
21sttwenty-first/twent?'f?:st/
22ndtwenty-second/twent?'sek?nd/
23rdtwenty-third/twent?'θ?:d/
24thtwenty-fourth/twent?'f?:θ/
25thtwenty-fifth/twent?'f?fθ/
26thtwenty-sixth/twent?'s?ksθ/
27thtwenty-seventh/twent?'sev?nθ/
28thtwenty-eighth/twent?'e?tθ/
29thtwenty-ninth/twent?'na?nθ/
30ththirtieth/'θ??t??θ/
31stthirty-first/θ??t?'f?:st/
40thfortieth/'f?:t??θ/
50thfiftieth/'f?ft??θ/
100thhundredth/'h?ndr?dθ/
1 000ththousandth/'θɑ?z?ndθ/
1 000 000thmillionth/'m?lj?nθ/
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