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Maths Error Function

Calculate the error function (erf) and complementary error function (erfc).

The error function asymptotes to 1 as x tends to infinity. The complementary error function asymptotes to 0 as x tends to infinity.

Reference : Numerical Recipes, The Art Of Scientific Computing, Press, Teukolsky, Vetterling, Flannery, Cambridge University Press

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CALCULATOR : Error Function [FREE]   ±

Calculate the error function (erf) and complementary error function (erfc).

The error function asymptotes to 1 as x tends to infinity. The complementary error function asymptotes to 0 as x tends to infinity.

Tool Input

  • x : Input x Value

Tool Output

  • erf(x) : Error Function
  • erfc(x) : Complementary Error Function

CALCULATOR : Inverse Error Function [FREE]   ±

Calculate the inverse error function (inverse erf) and inverse complementary error function (inverse erfc).

The inverse error function and the inverse complementary error function are valid for the range 0 ≤ e ≤ 1.

Tool Input

  • e : Input e Value

Tool Output

  • inv(e) : Inverse Error Function
  • invc(e) : Inverse Complementary Error Function