Recent content by Viet Tu

  1. Viet Tu

    B Find the function f(x) satisfy: x=0,-> f(x) =0, x<>0, f(x)=1

    I think it is a good solution. Nonetheless, it's too complicated for my case. Thank you so much.
  2. Viet Tu

    B Find the function f(x) satisfy: x=0,-> f(x) =0, x<>0, f(x)=1

    Thanks for your response.
  3. Viet Tu

    B Find the function f(x) satisfy: x=0,-> f(x) =0, x<>0, f(x)=1

    Express as polynomial form. This is in spreadsheet formula. I have alternative solution, using "if" command. However, I'm trying to find a solution in math.
  4. Viet Tu

    B Find the function f(x) satisfy: x=0,-> f(x) =0, x<>0, f(x)=1

    Thanks for reply. Yes, it exactly is express form of function. It's not homework but created by myself when I solve a problem in my job.
  5. Viet Tu

    B Find the function f(x) satisfy: x=0,-> f(x) =0, x<>0, f(x)=1

    My problem is simple, but I couldn't solve it: This is: Find a function f(x) of a variable x, x is in real field. the F(x) satisfy: When x = 0, f(x) = 0 When x<>0, f(x) =1. Anyone can help me? Thank you.
  6. Viet Tu

    B What is status of String Theory now?

    Is there any relationship between final theory and incompleteness theorem, according to Godel’s theorem. Even Stephen Hawing once said that there may not a final theory to discover after all?
  7. Viet Tu

    B What is status of String Theory now?

    Thank you. Apologize for my mistake.
  8. Viet Tu

    B What is status of String Theory now?

    Are there anything new in String theory?
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