Geometric Definition and 811 Threads

  1. J

    How Does Compound Interest Affect Birthday Savings Over 20 Years?

    Question: A man puts $10 in the bank for his son on each of his birthdays from the first to the twentieth inclusive. If the money accumlates at 3% compound interest, what is the toatl value on the son's twenty-first birthday? My answer is like this: a = 10, r = 1.03, n = 20 Total value = a...
  2. U

    Geometric Progression of Prime Numbers

    Has anyone ever tried to make prime numbers into some kind of geometric equivalence? Such that prime numbers can be predicted through geometry? I was thinking of a universe beginning with one 3D unit, and evolving from that unit. That all subsequent units would have a relation to the first...
  3. J

    How Can You Solve a Geometric Sequence Problem in a Telephoning Tree?

    Hi, I have a relatively simple question. In this particular problem in my Math 30 Pure textbook... 10. Here are three levels in a school telephoning tree. Teacher Student 1 Student 2 Student 3 Student 4 Student 5 Student 6 a)At what level are 64 students contacted? ...I really...
  4. G

    Line Integral Interpretations: Physical and Geometric Uses

    I understand that an example of a physical interpretation of the line integral of a scalar function with respect to arc length \int_C f(x,y,z)ds might be the total mass of a wire where f describes the linear density of the wire. But can anybody give an example of a physical or geometric...
  5. S

    Can You Plot the Parametrization for 3D Geometric Algebra?

    Consider 3D geometric algebra. Let all points on a line be given by the parametrization x=tu+y, in which the parameter runs from minus infinity to plus infinity. a. Show that for all points on the line we have x(wedge)u=y(wedge)u. b. Show that the vector d pointing from the...
  6. S

    Geometric Algebra: Explaining Commutators on Tri-Vectors

    can anyone explain how commutators act on tri-vectors (in orthonormal conditions)? on bi-vectors i know that it ends up to be a bivector again, but with tri-vectors it vanishes if its lineraly dependent. what about the case if its not linearly dependent, does that mean it remains a...
  7. H

    Geometric mechanisms of non-gravitational forces?

    Just wondering... so the conception is that gravity is not really a "force" but rather the consequence of shortest-path motion through curved geometry. Are there analogues for the other forces? I know gravity is not yet theoretically unified with the other forces. But is there nonetheless some...
  8. A

    Geometric Sequences and Logarithms

    I'm having trouble with these type of probles (where a negative log comes up): (All of this is solving without sigma notation) Find the number of terms in these geometric sequences and the sum of the numbers. 11, -22, 44,...,704 I know that a1 = 11, r = -2, and an = 704, so I did...
  9. A

    How Do You Solve Problems Involving Geometric Sequences and Series?

    I'm trying to get an A in honors AlgII/Trig and it is impossible, but I won't give up, so I have a few questions. I'm not sure how to find the first two terms of a sequence (I got a few right, but most wrong and I don't know what's wrong). One of the problems is: a5 = 20; a8 = 4/25. I set...
  10. Loren Booda

    How to Solve for the Value of B in a Geometric Series

    Can you solve analytically [oo] [pi] (n)1/n n=1 or [oo] [pi] (n!)1/n! n=1 or [oo] [sum] (1/n)n n=1 or [oo] [sum] (1/n!)n! n=1 ?
  11. Loren Booda

    N-dimensional geometric partitioning

    Given n+1 points in n-dimensional Euclidean space, how many polytopes (generalizations of polygons of n to as few as 2 dimensions) may be defined by the representation of each point as a possible vertex?
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