regStep

Chemical Reactor Design Toolbox Reference Manual

function y = regStep(x,y1,y2,xmall)

The functions approximates a general step,

$\begin{equation*} y = \left\{ \begin{array}{lcl} y_{1} & \text{für} & x > 0 \\ y_{2} & \text{für} & x < 0 \end{array} \right. \end{equation*}$

such that the characteristic is continuous and differentiable (after Modelica library)

Example

$\begin{equation*} x_\text{small} = 0.1 \end{equation*}$

In order to ensure that $y=y_{1}=0$ for $x=0$ the abscissa value has to be adjusted according

$\begin{equation*} x = x - x_\text{small} \end{equation*}$