在C語(yǔ)言中,可以使用數(shù)學(xué)庫(kù)函數(shù)來(lái)簡(jiǎn)化對(duì)數(shù)計(jì)算。其中,常用的對(duì)數(shù)函數(shù)有l(wèi)og()函數(shù)和log10()函數(shù)。
log()函數(shù)用于計(jì)算自然對(duì)數(shù),即以e為底的對(duì)數(shù)。其原型為:double log(double x)
。例如,計(jì)算以e為底的2的對(duì)數(shù):double result = log(2.0);
log10()函數(shù)用于計(jì)算以10為底的對(duì)數(shù)。其原型為:double log10(double x)
。例如,計(jì)算以10為底的100的對(duì)數(shù):double result = log10(100.0);
使用這些對(duì)數(shù)函數(shù)可以簡(jiǎn)化對(duì)數(shù)計(jì)算的過(guò)程,避免手動(dòng)計(jì)算復(fù)雜的對(duì)數(shù)值。