What is even: Definition and 664 Discussions

The break-even point (BEP) in economics, business—and specifically cost accounting—is the point at which total cost and total revenue are equal, i.e. "even". There is no net loss or gain, and one has "broken even", though opportunity costs have been paid and capital has received the risk-adjusted, expected return. In short, all costs that must be paid are paid, and there is neither profit nor loss. The break-even analysis was developed by Karl Bücher and Johann Friedrich Schär.

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  1. T

    Why was mercury considered a metal even in ancient times?

    Today we know that mercury is a metal even though it's a liquid, because we already know its position in periodic table, its ability to conduct electricity, but these features of mercury were not known in ancient times ( for example, in the age of great greek philosophers). Yet it was considered...
  2. A

    Why is this trigonometry function neither odd nor even?

    f(x)=1+sinx what am I doing wrong here? 1+sin(-x)= 1-sin(x)
  3. E

    Odd & Even Functions (was thread Fourier Series )

    Odd & Even Functions (was thread "Fourier Series") Homework Statement determine if the functions below are odd even or neither: a) f(x)=x^2+2 b) f(x)=(x^2+2)tan(x^2) c) f(x) = (x^2+2)sin(x)tan(x^2)Homework Equations even - f(x) = f(-x) odd - f(-x)=-f(x) The Attempt at a Solution I've managed...
  4. L

    Can we prove every number is even or odd without induction?

    It is a simple exercise to prove using mathematical induction that if a natural number n > 1 is not divisible by 2, then n can be written as m + m + 1 for some natural number m. (Depending on your definition of odd number, this can either be stated as "every number is even or odd", or as "every...
  5. R

    Why will a composition function of an even function always be even?

    I apologize in advance if the answer to this is really simple; I often overlook simple solutions when something trips me up. For example, if f(x)=x2 and g(x)=x3/2, and g(f(x)) is therefore, after simplification, x3, why is that still an even function if x3 graphed under other circumstances is...
  6. P

    2nd order ODE's odd and even functions

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  7. C

    If time didn't exist could anything move or even happen?

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  8. J

    Even number problem in book volume

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  9. Seydlitz

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  10. A

    Mathmatically, why are parallel universes even theorized?

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  11. V

    Recognizing even or odd permutation easily?

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  12. fluidistic

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  13. Saitama

    Odd or Even Function: Logarithmic Equation Analysis for Homework

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  14. I

    Schools Should I even bother applying for grad school?

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  15. Y

    Understanding Odd and Even Functions in Trigonometry

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  16. O

    Rearrange for x. Is this even possible?

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  17. D

    Issue with Fourier Series of an even function.

    Hi, I wish to obtain the Fourier series of the signal in red (please see attached figure fig1_sine_plots.png). Basically, it is a full-wave rectified 3f sinusoid, where f = 50Hz. The blue signal represents a sinusoid with frequency f = 50Hz. In the following equations (please see attached...
  18. B

    Starting Physics: Tips for High School Students

    I'm in high school, all honors/AP..etc, and I won't be able to take the physics course at my school for another year or two (I've tried to take it earlier, believe me). Anyway, I've always had a huge fascination with space and the world and how it works, with an larger interest in antimatter and...
  19. R

    Is the Function f(x) Odd or Even? Proving with Real Numbers

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  20. U

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    Physics BS - is it even worth it?

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  22. Y

    Is the Combination of Sin Functions an Even Function?

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  23. C

    Stationary states, if V(x) is an even function proof

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  24. A

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  25. T

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  26. I

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  27. X

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  28. C

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  29. H

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  30. DiracPool

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  31. PeteyCoco

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  32. S

    MHB Even More: Word Counts & Letters

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  33. R

    Break even on cell phone plans

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  34. V

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  35. C

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  36. M

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  37. M

    Discrete Fourier Transform on even function

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  38. T

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  39. A

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  40. C

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  41. D

    MHB How do I separate a function into its even and odd parts?

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  43. M

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  44. A

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  45. R

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  46. M

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  47. S

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  48. A

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  49. P

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  50. L

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