yearmonthday
today
now
三角函數
log10函數
LN
exp1
ROMAN1
combin2
combin1
fact
odd1
even1
mround1
floor1
EXCEL CEILING1
randbetween3
randbetween2
randbetween1
rand亂數3
rand亂數2
rand亂數1
圓周率2
圓周率1
ABSEXCEL1
