Factorial

Factorial shi ne rubutun rawaya da ke saman maɓallin $\displaystyle x^{-1}$. Ku lissafa factorial na $\displaystyle 5+3$. Ku danna , ku rubuta 5, , 3, , sai da , da . $\displaystyle 8!$ shi ne 40320.

▶ Ku kalli wannan mataki a cikin bidiyon (41:17)