9 ms·

What means the "d" in those formulas?

• est 14y ago
  delta
  • alex1 14y ago
    Actually, it means differential.
    • deleted 14y ago
      [deleted]
    • deleted 14y ago
      [deleted]
    • lclarkmichalek 14y ago
      While delta is technically wrong, it is correct in that dx represents delta x, where delta x tends to 0.
      • manojlds 14y ago
        Delta x is represented as Δx
• Natsu 14y ago
  Here's a good explanation of what it means: http://mathforum.org/library/drmath/view/60949.html http://mathforum.org/library/drmath/view/60949.html
• rmc 14y ago
  It's a notation for integrals, part of calculus. The "d" doesn't refer to anything http://en.wikipedia.org/wiki/Integral http://en.wikipedia.org/wiki/Integral
• aqme28 14y ago
  The differential. It's an operator meaning "infinitely small slice of ..." Since the Integral symbol represents an infinite sum, Integral( (f(x)*dx) ) is an infinite sum of infinitely small x-wise slices of f(x), thus giving you the area under the curve f(x).