常数

常數

chángshù

noun #42,968

Meanings

1 constant (in mathematics or physics)

Characters

constant; unchanging

Examples

HSK 4

在y=kx里，k是常数，x和y是变量。

Zài y=kx lǐ, k shì chángshù, x hé y shì biànliàng.

In y = kx, k is a constant and x and y are variables.

HSK 6

光速是一个常数。

Guāngsù shì yí ge chángshù.

The speed of light is a constant.

Tips

usage

常数 and 常量 both mean 'constant'. Maths says 常数, programming says 常量, and physics uses both, as in 普朗克常数 (Planck's constant). The opposite is 变量 (variable).

Stroke Order

常 cháng

数 shù