    ## 3. Transformation and indication of information

3.6 Ordinary differential equations

## 3.1 Introduction

This software enables us to transform information. We have facilities for functional, recursive and other kinds of transformation.Every consumer of information is linked by to provider of information. So we have facilities for creation of cascade of informaion processors. Every consumer should be set on desktop after its provider(s). This software has an option for changing order of components on the desktop. This is an Edit\Change order of selected main menu option.

## 3.2 Functional transformer

Functional transformer corresponds to the button. Its property editor looks like At its left part you can enter formulas (after choosing of output Dimension). Then you need to press an Accept formulas button. After this action you should select variables those are Constants or aliases and press the Accept constants button. Variables those are not constants should be linked with Data-in. In the picture above variable h is linked to Data-out of component Random. The t variable linked to the Time. If you have selected links between these variables and Data-in then you need to press the Access input parameters button. This property editor also contains constants editor and Graph sources panel. The constants editor is evident. Graph sources means that in the is associated to Graph source. Index "0" of coincides with index of combobox in the following component . Below a reader can find more profound description of Graph source All described configuration is shown on the following picture: In this picture our component Func uses Random as data-in and Graph source as function in formula . Component Graph is used for graphical indication. Click this reference to download this sample .

## 3.3 Series (Graph source)

The series component is a two column real table. Programmaticaly it implements a set of interfaces. One of these interfaces is a real function of real argument. We will return to other interfaceces below. Now we consider this one only. Property editor of this component is shown below The graph represents a real function that is defined by two colunm real table. It particular this function is used in the Functional transformer.

## 3.4 Random generator

The random generator generaties independent, uniform distributed on the [0, 1] interval numbers. It may be used for a simulation technique.

## 3.5 Recursive element

The recursve element enables us to perform recursive operations. Let us consider an example of its application. Suppose we have a following recursive system: where hn is data-in. Then we construct the following scheme Element Data-in provides hn and element Recursive performs recursive calculations. Its editor of properties looks like: ## 3.6 Ordinary differential equations

This software enables us to solve systems of ordinary differential equations using the component. Let us consider a following system of ordidinary differential equations: Then we use the component. Its property editor looks like: ## 3.7 Information indicator

Information indicator is a consumer of information. So it should be linked by an to its provider(s). Editor of properties of this component looks like: At its right part we can find panel with data-in. You can select data-in parameter(s) for indication and corresponding color(s). You can also enter step and number of steps of simulation. Argument of this graph may be any data-in parameter or time. Selection of argument is performed by combobox and checkbox at left bottom area of this window. The Start button click starts the simulation process. Using one of the Save button
you can export data to a series.    