容易被忽略，但经常成为说话时候卡壳点的一些表达
常用符号读法
| 符号 | 读法 |
|---|---|
@ |
at / at sign |
# |
sharp / crosshatch / hash / number |
$ |
dollar / dollar sign |
% |
percent sign / mod |
^ |
caret |
& |
and / ampersand |
* |
asterisk / star |
- |
dash (指短线) / hyphen (指单词中连字符) |
_ |
underline / underscore |
+ |
plus / plus sign |
= |
equals / equals sign |
< |
less than |
> |
greater than |
/ |
slash |
\ |
backslash / escape |
| |
vertical bar |
() |
parentheses / round brackets |
[] |
square brackets |
{} |
curly brackets / braces |
<> |
angle brackets / chevrons |
~ |
tilde |
, |
comma |
. |
dot / period |
? |
question mark |
! |
exclamation mark |
` |
backtick / backquote |
' |
tick / apostrophe / single quote (单引号) / prime (公式中使用，如f'(x)) |
: |
colon |
; |
semicolon |
" |
quotation mark / double quote |
<上标> |
superscript |
<下标> |
subscript |
常用运算读法
| 运算 | 读法 |
|---|---|
a + b |
a plus b |
a - b |
a minus b |
a * b |
a multiplied by b / a times b |
a / b |
a divided by b / b divides a |
a/b (分数 fraction) |
a over b / a bth (2/3 two-thirds) |
a^b (求幂) |
b=2: a squared; b=3: a cubed; a to the bth / a to the power b |
开根号 |
square root a; cube root a; bth root (of) a |
(a + b)^2 |
a plus b all squared |
(a/b)^2 |
a over b all squared |
a! (阶乘) |
a factorial |
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