Recent content by aufbau86

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    Proving De Morgan's Laws for GCD and LCM: A Natural Number Proof

    Let n be a natural number, and let S be the set of all natural numbers that divide n. For a, ,b in S, let gcd(a, b) = a /\ b and lcm(a, b) = a \/ b. For each x in S, let x' denote n/x. Do de Morgan's laws hold for this system? (gcd = greatest common divisor, lcm = lowest common...
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    Calculators Trouble with multivariable limits of integration on Ti89

    Hello, I'm currently trying to get my Ti-89 Titanium to compute the following triple integral; f(x,y,z) = xy(1-z) where 0<x<1, 0<y<1, 0<z<1, and x+y+z<1 int(int(int(f(x,y,z),x,0,1-y-z),y,0,1-z),x,0,1) The problem is that I can't get my Ti89 to substitute in for the limits of...
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