有效数字

有效數字

yǒuxiàoshùzì

noun

Measure Word

三位有效数字 wèi

Meanings

1 significant figures (in a measured value)
2 significant digits

Characters

character; digit

Examples

请保留三位有效数字。

Qǐng bǎoliú sān wèi yǒuxiào shùzì.

Please keep three significant figures.

测量结果的有效数字越多，精度越高。

Cèliáng jiéguǒ de yǒuxiào shùzì yuè duō, jīngdù yuè gāo.

The more significant figures in a measurement, the higher its precision.

Tips

usage

Standard term in physics, chemistry, and engineering textbooks. The classifier for counting them is 位 (wèi): 三位有效数字 = 'three significant figures'.

Stroke Order

有 yǒu

效 xiào

数 shù

字 zì