+476 what does e stand for in math?
if there is f of x, why isn't there an a, b, c, d, or e of x?
Is there a pattern or rules between factorial answers, like
3! = 6
4! = 24
5! = 120
is there an easy way to find factorials, or do you just have to work it out?
+23245 e is the Euler constant, defined as lim[1 + (1/n) ]n as n --> infinity.
"f(x)" is read as "f of x" and represents "the function whose name is 'f' and whose variable is 'x'".
The letter "f" doesn't have to be used...
y = 3x - 1 is the same as f(x) = 3x -1 is the same as a(x) = 3x - 1 is the same as b(x) = 3x - 1 etc.
x! = x·(x - 1)! with 0! defined to equal 1.
So, if you know (x - 1)! it isn't too difficult to find x!.
However, if you are trying to find x! and you don't know (x - 1)! and don't have a calulator/computer, you get to start at the beginning ...
