Hey,

i am completely new in working with Maple. I spent the past 2 days to find a solution to my problem, but wasnt successfull.

Here is what i wanna do:

i have a function with 3 Variables and i wanna take the total derivative of this function.

Then i wanna know if the derivative is positiv or negative.

The only thing about the variables i know is that 2 of them are between 0 and 1, and the other variable...