Recent content by nth.gol

Im not sure you really answered my question, but thanks for the input. Is there another test in several variables?

Hi, In high school, I was shown an unconventional but quicker way to find max/mins. I'm not sure how common it is but we did it because we learned to curve sketch without calculus first. Take f'(x) =0, and solve for the roots. Construct a number line and place all roots on the number...