常用数学符号及数学表达式的读法
0.01 + = { } log n x log 10 x log e x O point O one ; zero point zero one; nought point nought one a third; one third minus; negative plus or minus multiplied by; times divided by is equal to; equals is identically equal to is approximately equal to; approximately equals round brackets; parentheses square brackets; angular brackets braces intersection union is equivalent to therefore because log x to the base n log x to the base 10 (common logarithm) log x to the base e (natural logarithm) the nth power of x; x to the power n
y 10
y to the minus tenth(power) the square root of 4 is plus or minus 2 the cubic root of a the fifth root of x square
Vt V t
4 2
3
a
x2
5
a
a equals V sub t minus V over [divided by] t a plus b minus c multiplied by d, all divided by e equals f

b

a
F
x+y (a+b) a=b a b ab ab a>b a>> ab a<b ab a<<b x= a a||b s=vt s v t
双语班教学辅助资料
2/3
常用数学符号及数学表达式的读法
x2
x square; x squared. The square of x; the second power of x; x to the second power
f(x) y=f(x) dx dy dx
d2y dx 2 dny dx n
y xLeabharlann the nth derivative of y with respect to x the partial derivative of y with respect to x integral integral between limits a and b infinity vector F x plus y bracket a plus b bracket closed a equals b; a is equal to b; a is b a is not equal to b; a is not b a plus or minus b a is approximately equal to b a is greater than b a is much greater than b a is greater than or equal to b a is less than b a is less than or equal to b a is much less than b x approaches infinity angle a a is parallel to b s equals [is equal to] v multiplied by t; s equals v times t v equals s divide by t; v is s over t
5 2 25
the second power of 5 is 25; 5 square is 25; the square of 5 is 25; 5 to the second power is equal to 25
y3
y cube; y cubed; the cube of y; y to the third power; y to the third
sin 1 x
x a

|x| x b’ b’’ b’’’ b1 bm

x
双语班教学辅助资料
1/3
常用数学符号及数学表达式的读法

x
'' bm
x two dots b double prime sub m function f of x y is a function of x dee of x; dee x; differential x the first derivative of y with respect to x; dee y dee x the second derivative of y with respect to x
n
xn
x ,
xa
1 n
x
the nth root of x, x to the power one over n x approaches the limit a arc sine of x x approaches the limit a summation of; sigma the absolute value of x x bar b prime b double prime b triple prime b sub one b sub m x dot
(a b c d ) e f
5% 5%o
five per cent five per mille
双语班教学辅助资料
3/3