Mathematics Symbols and Their English Explanations
1/2 a half or one half
1/3 a third or one third
2/3 two third
1/4 a quarter or one quarter; a fourth or one fourth
1/10 a tenth or one tenth
1/100 a [one] hundredth
1/1000 a [one] thousandth
1/1234 one over a thousand two hundred and thirty-four
3/4 three fourths or three quarters
4/5 three fifths or four over five
113/300 one hundred and thirteen over three hundred
two and a half
two and ven over eight or two and ven eighth
three and one eighth
four and a third
a [one] hundred twenty-five and three fourth [quarters]
0.1(or .1) point one or zero point one or nought point one
0.01(or .01) point 0 one or zero point zero one or naught point naught one
小妇人英文简介0.25(or .25) naught point two five or point two five
0.045 decimal [point] naught four five
2.35 two point three five
4. four point nine recurring
kid
3.03 three point naught three two six , two six recurring
45.67 four five [forty-five] point six ven
38.72 three eight point ven two or thirty-eight decimal ven two
0.001(or .001) 0 point 0 0 one naught point naught naught one or zero point
zero zero one or point naught naught one
soku+ plus; positive
_ minus; negative
plus or minus
(or.) multiplied by ; times
(or/) divided by
= is equal to ; equals
is identically equal to
(or;;=) is approximately equal to ; approximately equals
identical with
not equal to
or approaches
< less than
> greater than
<< much less than
>> much grater than
equal to or less than
equal to or greater than
( ) round brackets; parenthes
[ ] square brackets
< > angular brackets
{ } braces
Interction
Union
is a member of t
is a subt of
~ similar to ; difference
* denotes an operation
is equivalent to
personalresume Implies
{ }or empty t
Maps into
Therefore
Becaua good year
: ratio sign, divided by, is to
:: equals, as (proportion)
varies as
infinity
square root of
cube root of
║ parallel to
° degrees
’ minutes
” conds
angle
length of line from A to B
vector product of A and B; magnitude of A times magnitude of B times sine of the angle from A to B; AB sin
scalar product of A to B ; magnitude of A times magnitude of B times cosine of the angle form A to B ;AB cos
I or j imaginary or square root of -1
or the imaginary cube roots of 1
pi ; the ratio of the circumference of a circle to its diameter, approx.3.14159
e or ① the ba of natural logarithms, approx.2.71828anotherday
② the eccentricity of a conic ction
x! factorial of x
log x to the ba n
or log x to the ba 10 (common logarithm)
or log x to the ba (natural logarithm or Naperian logarithm )
necpsM modulus of common logarithms e = 0.4343, (x = x 0.4343)
10 = 2.3026, (x = x 2.3026)
x x.x…to n factors, the nth power of x, x to the power n
or the nth root of x,x to the power one over n th
X a x approaches the limit a
(the angle between the radius vector and the polar axis) the angle theta
sigma
2013年高考题 the product of the terms indicated
the absolute value of x
the mean value of x ; x bar
b prime
b double prime ; b cond prime
b triple prime
b sub one
b sub two
b sub m
x dot ,first derivative of x with respect to time
x two dot , cond derivative of x with respect to time
exp x = (e = naperian log ba )(abbreviation forcontainer al)
b double prime sub m
f or F function
f(x);F(x); (x) function f(or) of x
y = f(x) y is a function of x
( finite difference or increment) delta
or x (the increment of x) delta x
(an increment of x considered as tending to zero )
dee of x ; dee x ; differential of x
or the differential coefficient of y with respect to x
the first derivative of y with respect to x
/ the cond derivative of y with respect x;
/ the nth derivative of y with respect x
/ the partial derivative of y with respect u ,u
where y is a function of u and another variable (or variables)
(x) the first derivative of function F of x with respect to x
i/+j/+k/ del ; nabla; vector differential operator
n nth del (nabla)
Laplacian operator
4! Factorial =1
line integral around a clod path
integral
ohh integral between limits a and b
vector F
x+y x plus y
(a+b) bracket a plus b bracket clod
a = b a equals b ; a is equal to b ; a is b
a b a is not equal to b ; a is not b
ab a plus or minus b
ab a is approximately equal to b
