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About Nedcim

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  1. Verify centroid of a function

    I found a method using theorem of Pappus and any of the various volume of solids and checking that the volumes are equal.
  2. Verify centroid of a function

    In general a region bounded by the curve y=f(x) of a continuous single variable function, the x axis with some finite limits of integration. Let's work with a specific case. Suppose we have a region bounded by y=x^4, x=0 and x=1 with a centroid located at (5/6, 5/18). How do you prove that point is the centroid for the defined region?
  3. Suppose you determine a point as the centroid for a single variable function is there a method to verify that the point is indeed the centroid?
  4. Ability to pass through a solid

    Is there anything that can be seen or filmed that can pass through solid objects?
  5. Creating a numerical display for Tetris

    I want to use the data from the game in algorithm to output as a numerical display.That requires some type of onscreen reader that can convert the live game into data that can I can enter into any various programs.
  6. I'm using the random game play of Tetris as a simplified approach to model more complicated systems. Instead of starting with zero rows of blocks, I start with nine rows as shown in the attached photo. Every game starts with a different degree of initial difficulty based on random starting position of each block and the placement of open spaces. I have a method for calculating this difficulty based on several factors. Each time a block falls and is put into position the difficultly level will change. I set ten sub-goals based when the difficulty level falls below a certain number. I want a numerical display to be able to track the time it takes to reach each sub-goal. I'm not sure how to enter the data from the game into a program to get an numerical output in real time. Any ideas?
  7. What is a field?

    Behavior is dependent on the structure. Why define anything by dependent factors? True. Wouldn't you also say that physics deals with the structure of matter? Citation? Anyhow the surface is still defined by the structure.
  8. What is a field?

    There are many fields in science that deal with form and structure. If the form and structure does not define what something is then what would you use to define it?
  9. I dont understand the concept of limit

    Factoring is allowed in the simplification of a function to compute the limit and that reduces the limit from an undefined to a product type. The property of infinity gives rules for the various products of infinity. All of that is unnecessary because it is understood that the fasting growing term will define the limits at infinity. Can you cite these difficult bits I'm avoiding?
  10. I dont understand the concept of limit

    Again, it's defined by the properties of infinity. It bypasses the undefined issue. Whatever term increases the fastest for large numbers is factored out and that results in a limit that as n approaches infinity results in infinity times 1 as the other terms approach 0. Another property of note is infinity to the power of infinity equals infinity. That shows unless infinity is redefined with a boundary then there is no point in asking what is beyond infinity. True, infinity is not a number.
  11. I dont understand the concept of limit

    Exactly. If the rule is applied incorrectly as shown above then it will be undefined. As I said earlier, the spacial properties of infinity applies: Infinity times infinity is infinity. [math]\mathop {\lim }\limits_{n \to \infty } \left( {{n} ({n-1}} \right)) = \infty[/math] Do you not guarantee that as n gets large so does the product of n and (n-1)?
  12. I dont understand the concept of limit

    What am I missing? Simply evaluate the limit: [math]\mathop {\lim }\limits_{n \to \infty } \left( {{n^2} - {n}} \right) = \infty[/math]
  13. Massless things

    The equations are not necessary in violation with Newton' second law but simply cannot account for the additional factors.
  14. I dont understand the concept of limit

    Then your in disagreement with various texts and websites that apply that meaning: Why set up the limit to have an undefined subtraction of infinite limits? Simply, leave in the original form and factor n(n-1) then by the special properties of infinity, infinity times infinity=infinity. No.
  15. I dont understand the concept of limit

    That despite what you noted earlier a sequence that is divergent can in fact have a limit that is infinity. Are you in disagreement with that point and the cited link? Infinity. Infinity is a concept by definition that has no bounds, It's only in special hypotheses where the general rules of infinity are violated there can be any consideration of what is beyond infinity.