Recent content by ucbugrad

What is the expectation value of cosine squared, namely <cos^2(t)>?

How do you see if the following inequality holds true for (-2,0)? (-x/4)*(x+2)>1 For that matter how do you test inequalities for a given interval in general? Certainly there must be a way other than to check all values of (-x/4)*(x+2) in (-2,0) and see if they are greater than 1?

Thank you all, both addressed all of my issues. Halls of Ivy: where can I find more about this sequence that converges to Pi? What is the formula for each term?

How do you compute the following? 2it where t is a real number while I am at it, how do you compute powers that are not integers ie: 23.14