(math) what is the nCr function used for on the calculator ... 行動版 - 2007年3月2日 - 4 nPr 2 = 4*3 = 12 What is nCr and how is it different from nPr?
hello....what does nPr stand for and nCr in mathematics? | Yahoo ... 行動版 - 2009年5月3日 - I know the P stands for permutations and the C stands for combinations, but what about ...