“Why does 0!=1?” zhongwei, my ex-student prompted me this question, scratching my rusty brain, i vaguely remembered n!= 1*2*3*…*n, but how does 0 comes in? read on if you want the answer …
– a Singaporean teacher's storeroom 🖖
– a Singaporean teacher's storeroom 🖖
“Why does 0!=1?” zhongwei, my ex-student prompted me this question, scratching my rusty brain, i vaguely remembered n!= 1*2*3*…*n, but how does 0 comes in? read on if you want the answer …