.ThermoPower.Functions.sqrtReg

Information

Function	Approximation	Range
y = sqrtReg(x)	y ~= sqrt(abs(x))*sign(x)	abs(x) >> delta
y = sqrtReg(x)	y ~= x/sqrt(delta)	abs(x) << delta

With the default value of delta=0.01, the difference between sqrt(x) and sqrtReg(x) is 16% around x=0.1, 0.25% around x=0.1 and 0.0025% around x=1.

Interface

function sqrtReg
  extends Modelica.Icons.Function;
  input Real x;
  input Real delta = 0.01 "Range of significant deviation from sqrt(x)";
  output Real y;
end sqrtReg;

Revisions

• 15 Mar 2005 by Francesco Casella:
  Created.