Re: Range of Function

what you're really trying to find is the maximum and the minimum of a
given function (knowing these gives you the required range). this task
is not 'friendly' in general. I havent worked out the max and min in
this case, but what happens when you differentiate and try to max and
min?
-Pari

Simon Dean wrote:
Hi. Is there a "friendly" algorithm for calculating the range of a function?

I am trying to calculate the range of:

f(x) = sin (Arctan x)
-and-
g(x) = ln (cos x)

Any suggestions would be greatly appreciated!

.