Symbols in English符号英文Word文档下载推荐.docx
- 文档编号:16894377
- 上传时间:2022-11-26
- 格式:DOCX
- 页数:15
- 大小:21.87KB
Symbols in English符号英文Word文档下载推荐.docx
《Symbols in English符号英文Word文档下载推荐.docx》由会员分享,可在线阅读,更多相关《Symbols in English符号英文Word文档下载推荐.docx(15页珍藏版)》请在冰豆网上搜索。
bd/
4
tothefourth;
tothepowerfour
/təð
ə'
fɔːθ//teð
pɑʊəfɔː/
n
tothen;
tothenth;
tothepowern
ɪen;
tədɪenθ;
təð
əpɑʊəren/
√
root;
squareroot
/ru:
t//skweəru:
t/
∛
cuberoot
/kju:
bru:
∜
fourthroot
/fɔːθruːt/
!
factorial
/fæ
k'
tɔːrɪəl/
%
percent
/pə'
sent/
∞
infinity
/ɪn'
fɪnətɪ/
∝
variesas;
proportionalto
vɛərɪz//prə'
pɔːʃənəl/
˙
dot
/dɒt/
¨
doubledot
/dʌbldɒt/
:
isto,ratioof
/reɪʃɪəʊ/
f(x)fx
f;
function
/ef//'
fʌŋkʃən/
f'
(x)
fdash;
derivative
/dæ
ʃ//dɪ'
rɪvətɪv/
'
fdouble-dash;
secondderivative
dʌbldæ
ʃ//'
sekənddɪ'
ftriple-dash;
ftreble-dash;
thirdderivative
trɪpldæ
ʃ//trebldæ
ʃ//θɜ:
ddɪ'
f(4)
ffour;
fourthderivative
/fɔːθdɪ'
∂
partialderivative,delta
/paːʃəldɪ'
rɪvətɪv//deltə/
∫
integral
ɪntɪgrəl/
∑
sum
/sʌm/
w.r.t.
withrespectto
/wɪð
rɪspekt/
log
log
/lɒg/
log₂x
logtothebase2ofx
/lɒgtəð
əbeɪstu:
əveks/
∴
therefore
ð
ɛəfɔː/
∵
because
/bɪ'
kɒz/
→
gives,leadsto,approaches
/gɪvz//li:
dztʊ//əprəʊʧəz/
per
/pɜ:
∈
belongsto;
amemberof;
anelementof
lɒŋz//'
membə//'
elɪmənt/
∉
doesnotbelongto;
isnotamemberof;
isnotanelementof
/nɒtbɪ'
lɒŋ//nɒtə'
membə//nɒtən'
⊂
containedin;
apropersubsetof
/kən'
teɪndɪn//'
prɒpə'
sʌbset/
⊆
subset
⋂
intersection
ɪntəsekʃən/
⋃
union
juːnɪən/
∀
forall
/fərɔ:
l/
cosx
cosx;
cosinex
/kɒz/
sinx
sinex
/saɪn/
tanx
tangentx
/tan/
cosecx
kəʊsek/
sinhx
shinex
ʃaɪn/
coshx
kɒʃ/
tanhx
thanx
/θæ
n/
|x|
modx;
modulusx
/mɒd//'
mɒdjʊləs/
℃
degreesCentigrade
gri:
z'
sentɪgreɪd/
℉
degreesFahrenheit
fæ
rənhaɪt/
°
K
degreesKelvin
kelvɪn/
0°
K,–273.15°
C
absolutezero
/absəlu:
tzi:
rəʊ/
mm
millimetre
mɪlɪmiːtə/
cm
centimetre
sentɪmiːtə/
cc,cm³
cubiccentimetre,centimetrecubed
kjuːbɪk'
sentɪmiːtə//'
sentɪmiːtə'
m
metre
miːtə/
km
kilometre
/kɪ'
lɒmɪtə/
mg
milligram
mɪlɪgræ
m/
g
gram
/græ
kg
kilogram
kɪləgræ
AC
A.C.
/eɪsi:
DC
D.C.
/di:
si:
/
Examples
x+1
xplusone
x-1
xminusone
x±
1
xplusorminusone
xy
xy;
xtimesy;
xmultipliedbyy
(x—y)(x+y)
xminusy,xplusy
x/y
xovery;
xdividedbyy;
x÷
y
xdividedbyy
x=5
xequals5;
xisequalto5
x≈y
xisapproximatelyequaltoy
x≡y
xisequivalenttoy;
xisidenticalwithy
x≠y
xisnotequaltoy
x>
xisgreaterthany
x<
xislessthany
x≥y
xisgreaterthanorequaltoy
x≤y
xislessthanorequaltoy
0<
x<
zeroislessthanxislessthan1;
xisgreaterthanzeroandlessthan1
0≤x≤1
zeroislessthanorequaltoxislessthanorequalto1;
xisgreaterthanorequaltozeroandlessthanorequalto1
x²
xsquared
x³
xcubed
x4
xtothefourth;
xtothepowerfour
xn
xtothen;
xtothenth;
xtothepowern
x-n
xtotheminusn;
xtothepowerofminusn
rootx;
squarerootx;
thesquarerootofx
thecuberootofx
thefourthrootofx
thenthrootofx
(x+y)²
xplusyallsquared
(x/y)²
xoveryallsquared
n!
nfactorial;
factorialn
x%
xpercent
x∝y
xvariesasy;
xis(directly)proportionaltoy
x∝1/y
xvariesasoneovery;
xisindirectlyproportionaltoy
ẋ
xdot
ẍ
xdoubledot
fofx;
thefunctionofx
fdashx;
the(first)derivativeofwithrespecttox
fdouble-dashx;
thesecondderivativeoffwithrespecttox
ftriple-dashx;
ftreble-dashx;
thethirdderivativeoffwithrespecttox
ffourx;
thefourthderivativeoffwithrespecttox
∂v
thepartialderivativeofv
∂v∂θ
deltavbydeltatheta,thepartialderivativeofvwithrespecttoθ
∂²
v∂θ²
deltatwovbydeltathetasquared;
thesecondpartialderivativeofvwithrespecttoθ
dv
thederivativeofv
dvdθ
dvbydtheta,thederivativeofvwithrespecttotheta
d²
vdθ²
d2vbydthetasquared,thesecondderivativeofvwithrespecttotheta,
integralfromzerotoinfinity
thesumfromiequals1ton
logey
logtothebaseeofy;
logytothebasee;
naturallog(of)y
gives,approaches
Δx→0
deltaxapproacheszero
limΔx→0
thelimitasdeltaxapproacheszero,thelimitasdeltaxtendstozero
LtΔx→0
m/sec
metrespersecond
x∈A
xbelongstoA;
xisamemberofA;
xisanelementofA
x∉A
xdoesnotbelongtoA;
xisnotamemberofA;
xisnotanelementofA
A⊂B
AiscontainedinB;
AisapropersubsetofB
A⊆B
AisasubsetofB
A⋂B
AintersectionB
A⋃B
AunionB
tangentx,tanx
18℃
eighteendegreesCentigrade
70℉
seventydegreesFahrenheit
Greekalphabet
Α
α
alpha
æ
lfə/
Β
β
beta
bi:
tə/
Γ
γ
gamma
gæ
mə/
Δ
δ
delta
deltə/
Ε
ε
epsilon
epsilən/
Ζ
ζ
zeta
ziːtə/
Η
η
eta
iːtə/
Θ
θ
theta
θiːtə/
Ι
ι
iota
/aɪ'
əʊtə/
Κ
κ
kappa
kæ
pə/
Λ
λ
lamda
læ
mdə/
Μ
μ
mu
mjuː/
Ν
ν
nu
njuː/
Ξ
ξ
xi
ksaɪ/
Ο
ο
omicron
əʊmɪkrən/
Π
π
pi
paɪ/
Ρ
ρς
rho
Σ
σ
sigma
sɪgmə/
Τ
τ
tau
tɑʊ/
Υ
υ
upsilon
jʊpsɪlən/
Φ
φ
phi
faɪ/
Χ
χ
chi
kaɪ/
Ψ
ψ
psi
psaɪ/
Ω
ω
omega
əʊmɪgə/
^
Romanalphabet
A
a
eɪ/
B
b
biː/
c
siː/
D
d
diː/
E
e
iː/
F
f
ef/
G
ʤiː/
H
h
eɪʧ/
I
i
aɪ/
J
j
ʤeɪ/
k
keɪ/
L
l
el/
M
em/
N
en/
O
o
əʊ/
P
p
piː/
Q
q
kjuː/
R
r
ɑː/
S
s
es/
T
t
ti:
U
u
ju:
V
v
vi:
W
w
dʌbljuː/
X
eks/
Y
y
waɪ/
Z
z
zed/
Fractions
½
ahalf
/ə'
hɑ:
f/
¼
aquarter
kwɔːtə/
¾
threequarters
/θriː'
kwɔːtəz/
⅓
athird
θɜ:
d/
⅔
twothirds
/tu:
dz/
⅕
afifth
fɪfθ/
⅖
twofifths
fɪfθs/
⅗
threefifths
⅘
fourfifths
/fɔː'
⅙
asixth
sɪksθ/
⅚
fivesixths
/faɪv'
sɪksθs/
⅛
aneighth
/ən'
eɪtθ/
⅜
threeeighths
eɪtθs/
⅝
fiveeighths
⅞
seveneighths
/sevən'
DecimalFractions
0.1
noughtpointone
/nɔ:
tpɔɪntwʌn/
0.01
noughtpointohone
tpɔɪntəʊwʌn/
0.0001
noughtpointohohohone
/tenpɔɪntəʊəʊəʊwʌn/
1.1
onepointone
/wʌnpɔɪntwʌn/
1.2
onepointtwo
/wʌnpɔɪnttu:
1.23
onepointtwothree
θri:
1.0123
onepointohonetwothree
/wʌnpɔɪntəʊwʌntu:
10.01
tenpointohone
/tenpɔɪntəʊwʌn/
21.57
twenty-onepointfiveseven
twentɪwʌnpɔɪntfaɪv'
sevən/
2.6666666666....
twopointsixrecurring
pɔɪntsɪksrɪ'
kɜ:
rɪŋ/
2.612361236123...
twopointsixonetwothreerecurring
pɔɪntsɪkswʌntu:
rɪ'
2.5million
twopointfivemillion
pɔɪntfaɪv'
mɪljən/
SIUnits:
Prefixes
10-24
yocto
jɒktəʊ/
10-21
zepto
zeptəʊ/
10-18
atto
atəʊ/
10-15
femto
femtəʊ/
10-12
pico
pi:
kəʊ/
10-9
nano
nanəʊ/
10-6
micro
µ
maɪkrəʊ/
10-3
milli
mɪlɪ/
10-2
centi
sentɪ/
10-1
deci
desɪ/
103
kilo
kɪləʊ/
106
mega
megə/
109
giga
gɪgə/
1012
tera
terə/
1015
peta
petə/
1018
exa
eksə/
1021
zetta
zetə/
1024
yotta
jɒtə/
1027
xona
zəʊnə/
1030
weka
wekə/
1033
vunda
vʊndə/
CardinalNumbers
1
one
/wʌn/
2
two
3
three
/θri:
four
/fɔː/
5
five
/faɪv/
6
six
/sɪks/
7
seven
8
eight
/eɪt/
9
nine
/naɪn/
10
ten
/ten/
11
eleven
/ɪ'
levən/
12
twelve
/twelv/
13
thirteen
/θɜ:
14
fourteen
/fɔː'
15
fifteen
/fɪf'
16
sixteen
/sɪkst'
i:
17
seventeen
/seven'
18
eighteen
/eɪ'
19
nineteen
/naɪn'
20
twenty
twentɪ/
21
twenty-one
/twentɪ'
wʌn/
22
twenty-two
tu:
23
twenty-three
θri:
24
twenty-four
fɔː/
25
twenty-five
faɪv/
26
twenty-six
sɪks/
27
twenty-seven
28
twenty-eight
eɪt/
29
twenty-nine
naɪn/
30
thirty
tɪ/
40
forty
fɔːtɪ/
50
fifty
fɪftɪ/
60
sixty
sɪkstɪ/
70
seventy
sevəntɪ/
80
eighty
eɪtɪ/
90
ninety
naɪntɪ/
100
ahundred;
onehundred
hʌndrəd//wʌn'
hʌndrəd/
101
ahundredandone
hʌndrədənwʌn/
102
ahundredandtwo
hʌndrədəntu:
110
ahundredandten
hʌndrədənten/
120
ahundredandtwenty
hʌndrədən'
200
twohundred
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Symbols in English符号英文 English 符号 英文