| \(x +1\) |
x plus one |
x加1 |
| \(x-1\) |
x minus one |
x减一 |
| \(x \pm 1\) |
x plus orminus one |
x加减1 |
| \(xy\) |
x y;x times y; x multiplied by y |
xy |
| \((x-y)(x + y)\) |
x minus y, x plus y |
x减y乘x加y |
| \(x/y\) |
x over y; x divided by y; |
x除以y |
| \(x ÷ y\) |
x divided by y |
x除以y |
| \(x = 5\) |
x equals 5; x is equal to 5 |
x等于5 |
| \(x \approx y\) |
x is approximately equal to y |
x约等于y |
| \(x ≡ y\) |
x is equivalent to y; x is identical with y |
x等价于y,x恒等于y |
| \(x \neq y\) |
x is not equal to y |
x不等于y |
| \(x > y\) |
x is greater than y |
x大于y |
| \(x < y\) |
x is less than y |
x小于y |
| \(x ≥ y\) |
x is greater than or equal to y |
x大于等于y |
| \(x ≤ y\) |
x is less than or equal to y |
x小于等于y |
| \(0 < x < 1\) |
zero is less than x is less than 1; x is greater than zero and less than 1 |
x大于0，小于1 |
| \(0 ≤ x ≤ 1\) |
zero 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大于等于0，小于等于1 |
| \(x^2\) |
x squared |
x的平方 |
| \(x^3\) |
x cubed |
x的立方 |
| \(x^4\) |
x to the fourth; x to the power four |
x的四次幂 |
| \(x^n\) |
x to the n; x to the nth; x to the power n |
x的n次幂 |
| \(x^{-n}\) |
x to the minus n; x to the power of minus n |
x的负n次幂 |
| \(\sqrt{}\) |
root x; square root x; the square root of x |
x的平方根 |
| \(\sqrt[3]{}\) |
the cube root of x |
x的立方根 |
| \(\sqrt[4]{}\) |
the fourth root of x |
x的四次根 |
| \(\sqrt[n]{}\) |
the nth root of x |
x的n次根 |
| \((x + y)^2\) |
x plus y all squared |
x加y整体的平方 |
| \((x/y)^2\) |
x over y all squared |
y分之x整体的平方 |
| \(n!\) |
n factorial; factorial n |
n的阶乘 |
| x% |
x percent |
百分之x |
| \(\infty\) |
infinity |
无穷 |
| \(x \propto y\) |
x varies as y; x is (directly) proportional to y |
x与y成比例 |
| \(x \propto 1/y\) |
x varies as one over y; x is indirectly proportional to y |
x与1/y成比例 |
| \(\dot{x}\) |
x dot |
点x |
| \(\ddot{x}\) |
x double dot |
双点x |
| \(f(x) \quad fx\) |
f of x; the function of x |
x的函数 |
| f'(x) |
f dash x; the (first) derivative of with respect to x |
函数f对x的导数 |
| f''x |
f double-dash x; the second derivative of f with respect to x |
函数f对x的二阶导数 |
| f'''(x) |
f triple-dash x; f treble-dash x; the third derivative of f with respect to x |
函数f对x的三阶导数 |
| f(4) |
f four x; the fourth derivative of f with respect to x |
函数f对x的四阶导数 |
| \(\partial v\) |
the partial derivative of v |
v的偏微分 |
| \(\frac{\partial v}{\partial \theta}\) |
delta v by delta theta, the partial derivative of v with respect to θ |
v对于θ的偏导数 |
| \(\frac{\partial^2 v}{\partial \theta^2}\) |
delta two v by delta theta squared; the second partial derivative of v with respect to θ |
v对于θ的二阶偏导数 |
| \(\text{d}v\) |
the derivative of v |
v的导数 |
| \(\frac{\text{d}v}{\text{d} \theta}\) |
d v by d theta, the derivative of v with respect to theta |
v对于θ的导数 |
| \(\frac{\text{d}^2 v}{\text{d} \theta^2}\)d |
d 2 v by d theta squared, the second derivative of vwith respect to theta, |
v对于θ的二阶导数 |
| \(\int\) |
integral |
积分 |
| \(\int_0^{\infty}\) |
integral from zero to infinity |
从0到正无穷的积分 |
| \(\sum\) |
sum |
和 |
| \(\sum_{i=1}^n\) |
the sum from i equals 1 to n |
从i=1到i=n进行求和 |
| \(w.r.t.\) |
with respect to |
相对于 |
| \(\log_e y\) or \(\ln\) |
log to the base \(e\) of y; log y to the base \(e\); natural log (of) y |
y的自然对数 |
| \(\because\) |
because |
因为 |
| \(\therefore\) |
therefore |
所以 |
| \(\to\) |
gives, approaches |
得，趋近 |
| \(\Delta x \to 0\) |
delta x approaches zero |
\(\Delta x\)趋近于0 |
| \(lim_{\Delta x \to 0}\) |
the limit as delta x approaches zero, the limit as delta x tends to zero |
当\(\Delta x\)趋近于0时的极限 |
| \(Lt_{\Delta x \to 0}\) |
the limit as delta x approaches zero, the limit as delta x tends to zero |
当\(\Delta x\)趋近于0时的极限 |
| m/sec |
metres per second |
米每秒 |
| \(x \in A\) |
x belongs to A; x is a member of A; x is an element of A |
x属于集合A，x在集合A中 |
| \(x \notin A\) |
x does not belong to A; x is not a member of A; x is not an element of A |
x不属于集合A |
| \(A \subset B\) |
A is contained in B; A is a proper subset of B |
B包含A,A是B的真子集 |
| \(A \subseteq B\) |
A is contained in B; A is a subset of B |
B包含A,A是B的子集 |
| \(A \cap B\) |
A intersection B |
A与B的交集 |
| \(A \cup B\) |
A union B |
A与B的并集 |
| \(\cos x\) |
cos x; cosine x |
余弦 |
| \(\sin x\) |
sine x |
正弦 |
| \(\tan x\) |
tangent x, tan x |
正切 |
| \(\cosec x\) or \(\csc x\) |
cosec x |
余割 |
| \(\sinh x\) |
shine x |
双曲正弦 |
| \(\cosh x\) |
cosh x |
双曲余弦 |
| \(\tanh x\) |
than x |
双曲正切 |
| \(\|x\|\) |
mod x; modulus x |
x的模 |
| 18 ℃ |
eighteen degrees Centigrade |
18摄氏度 |
| 70 ℉ |
seventy degrees Fahrenheit |
70华氏度 |
