1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Cant understand the question

  1. Apr 2, 2010 #1
    the question is stated as such
    "number 'e' is found almost accurately in a certain computer,and we can consider it as accurate.so each power of it also accurate. so we left to calculate the fracture ie
    [tex]e^x=e^{[x]}e^{x-[x]}[/tex] "the question goes on

    how is [tex]e^x=e^{[x]}e^{x-[x]}[/tex] a fracture
    ?
    square cols represent the whole value
     
  2. jcsd
  3. Apr 2, 2010 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    There may be a language problem here. I think that, instead of "fracture" you mean "fraction" or possibly just "error"?
     
  4. Apr 2, 2010 #3
    yes fraction
    how its fraction
     
  5. Apr 2, 2010 #4

    Mark44

    Staff: Mentor

    Without additional explanation, your notation is not very clear. By [x], I think you mean the floor of x, or [itex]\left\lfloor x \right\rfloor[/itex]. The floor of x is the largest integer that is less than or equal to x. E.g., [itex]\left\lfloor 2.7 \right\rfloor = 2[/itex].

    Using x = 2.7 in your equation, we have
    [tex]e^x = e^{\left\lfloor 2.7 \right\rfloor}e^{2.7 - \left\lfloor 2.7 \right\rfloor }[/tex]
    [tex]= e^2 e^{2.7 - 2} = e^2 e^{.7}[/tex]
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Cant understand the question
Loading...