一些特殊数学符号的英语读法 | |
+ |
plus 加号;正号 |
- |
minus 减号;负号 |
± |
plus or minus 正负号 |
× |
is multiplied by 乘号 |
÷ |
is divided by 除号 |
= |
is equal to 等于号 |
≠ |
is not equal to 不等于号 |
≡ |
is equivalent to 全等于号 |
≌ |
is equal to or approximately equal to 等于或约等于号 |
≈ |
is approximately equal to 约等于号 |
< |
is less than 小于号 |
> |
is more than 大于号 |
≮ |
is not less than 不小于号 |
≯ |
is not more than 不大于号 |
≤ |
is less than or equal to 小于或等于号 |
≥ |
is more than or equal to 大于或等于号 |
% |
per cent 百分之… |
‰ |
per mill 千分之… |
∞ |
infinity 无限大号 |
∝ |
varies as 与…成比例 |
√ |
(square) root 平方根 |
∵ |
since; because 因为 |
∴ |
hence 所以 |
∷ |
equals, as (proportion) 等于,成比例 |
∠ |
angle 角 |
⌒ |
semicircle 半圆 |
⊙ |
circle 圆 |
○ |
circumference 圆周 |
π |
pi 圆周率 |
△ |
triangle 三角形 |
⊥ |
perpendicular to 垂直于 |
∪ |
union of 并,合集 |
∩ |
intersection of 交,通集 |
∫ |
the integral of …的积分 |
∑ |
(sigma) summation of 总和 |
° |
degree 度 |
′ |
minute 分 |
″ |
second 秒 |
℃ |
Celsius system 摄氏度 |
{ |
open brace, open curly 左花括号 |
} |
close brace, close curly 右花括号 |
( |
open parenthesis, open paren 左圆括号 |
) |
close parenthesis, close paren 右圆括号 |
() |
brakets/ parentheses 括号 |
[ |
open bracket 左方括号 |
] |
close bracket 右方括号 |
[] |
square brackets 方括号 |
. |
period, dot 句号,点 |
| |
vertical bar, vertical virgule 竖线 |
& |
amp; ampersand, and, reference, ref 和,引用 |
* |
asterisk, multiply, star, pointer 星号,乘号,星,指针 |
/ |
slash, divide, oblique 斜线,斜杠,除号 |
// |
slash-slash, comment 双斜线,注释符 |
# |
pound 井号 |
/ |
backslash, sometimes escape 反斜线转义符,有时表示转义符或续行符 |
~ |
tilde 波浪符 |
. |
full stop 句号 |
, |
comma 逗号 |
: |
colon 冒号 |
; |
semicolon 分号 |
? |
question mark 问号 |
! |
exclamation mark (英式英语) exclamation point (美式英语) |
' |
apostrophe 撇号 |
- |
hyphen 连字号 |
-- |
dash 破折号 |
... |
dots/ ellipsis 省略号 |
" |
single quotation marks 单引号 |
"" |
double quotation marks 双引号 |
‖ |
parallel 双线号 |
~ |
swung dash 代字号 |
§ |
section; division 分节号 |
→ |
arrow 箭号;参见号 |
PS:
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