对数

對數

duìshù

noun #34,133

Measure Word

一个对数 gè

Meanings

1 logarithm
2 log (mathematics)

Characters

corresponding; paired

Examples

HSK 5

请计算这个数的对数。

Qǐng jìsuàn zhège shù de duìshù.

Please calculate the logarithm of this number.

HSK 5

自然对数以e为底。

Zìrán duìshù yǐ e wèi dǐ.

The natural logarithm has e as its base.

Tips

memory

对 here means 'corresponding / paired' - a logarithm is the exponent that 'corresponds to' a given number under a chosen base. Common collocations: 对数函数 (logarithmic function), 自然对数 (natural log, ln), 常用对数 (common log, base 10).

Stroke Order

对 duì

数 shù