This information is part of the Modelica Standard Library maintained by the Modelica Association.

This function approximates abs(x)^a*sign(x), such that the derivative is positive, finite and smooth in x=0.

Function	Approximation	Range
y = regPow(x)	y ~= abs(x)^a*sgn(x)	abs(x) >>delta
y = regPow(x)	y ~= x*delta^(a-1)	abs(x) << delta

y = regPow(x, a, delta)

x	Type: Real
a	Type: Real
delta	Default Value: 0.01 Type: Real Description: Range of significant deviation from x^a*sgn(x)

y	Type: Real