Be̍k-hâm-sò͘

Tī sò͘-ha̍k tiong, be̍k-hâm-sò͘ (冪函數; power function) sī chi̍t chióng hêng-sek chhin-chhiūⁿ $f(x)=x^{r}$ ê hâm-sò͘; kî-tiong, chí-sò͘ $r$ ē-ēng sī chū-jiân-sò͘ kap iú-lí-sò͘, iā thang sī jīm-hô si̍t-sò͘ ia̍h-sī ho̍k-cha̍p-sò͘.

$r=1,3,5$ ê be̍k-hâm-sò͘