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 quarterstraining是什么意思
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 eighths
three and one eighth
four and a third
a [one] hundred twenty-five and three fourths [quarters]
0.1(or .1) 0 point one or zero point one or nought point one
0.01(or .01) 0 point 0 one or zero point zero one or nougth point nought
one
0.25(or .25) nougth point two five or point two five
0.045 decimal [point] nought four five
2.35 two point three five
4. four point nine recurring
3.03 three point nought three two six , two six recurring
45.67 four five [forth-five] point six ven
38.72 three eight point ven two or thirty-eight decimal ven twojockey
0.001(or .001) 0 point 0 0 one nought point nought nought one or zero point
zero zero one or point nought nought one
+ plus; positive
_ minus; negative
plus or minus
(or.) multiplied by ; times
(or/) divided by
= is equal to ; equals
is identically equal to
(or;hdw;=) is approximately equal to ; approximately equals
identical with
psdn= or not equal to
or= approaches
< less than
greater than
江博教育<< much less than
>> much grater than
equal to or less than
equal to or greater than傀儡是什么意思
( ) round brackets; parenthes
[ ] square brackets
[ ] angular brackets
{ } braceschee
interction
union
is member of t
is a subt of
~ similar to ; difference
* denotes an operation
is equivalent to
implies
{ }or empty t
maps into
therefore
becau
: 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
AB vector product of A and B; magnitude of A times magnitude of B times sine of the angle from A to B; AB sin
A 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
japanxxxxxxxhdor 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.2.71828
② the eccentricity of a conic ction
x! or x factorial x
x log x to the ba n
x or x log x to the ba 10 (common logarithm)
x or ln x log x to the ba (natural logarithm or Naperian logarithm )
M modulus of common logarithms e = 0.4343, (x = x 0.4343)
10 = 2.3026, (x = fiscal cliffx 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
>泰山梁木
