packageExamples

Information

This package contains quite involved examples that demonstrate how to use the functions of package Modelica.Utilities. In particular the following examples are present.

• Function calculator is an interpreter to evaluate expressions consisting of +,-,*,/,(),sin(), cos(), tan(), sqrt(), pi. For example: calculator("1.5*sin(pi/6)");
   
• Function expression is the basic function used in "calculator" to evaluate an expression. It is useful if the expression interpreter is used in a larger scan operation (such as readRealParameter below).
   
• Function readRealParameter reads the value of a parameter from file, given the file and the parameter name. The value on file is interpreted with the Examples.expression function and can therefore be an expression.
   
• Model readRealParameterModel is a test model to demonstrate the usage of "readRealParameter". The model contains 3 parameters that are read from file Examples_readRealParameters.txt.
   
• Model WriteRealMatrixToFile demonstrates the usage of function "Streams.writeReaMatrix" to store a matrix in various MATLAB MAT formats on file.
   
• Model ReadRealMatrixFromFile demonstrates the usage of functions "Streams.readMatrixSize" and "Streams.readRealMatrix" to read a matrix in various MATLAB MAT formats from file.

Contents

Name	Description
calculator	Interpreter to evaluate simple expressions consisting of +, -, *, /, (), sin(), cos(), tan(), sqrt(), asin(), acos(), atan(), exp(), log(), pi
expression	Expression interpreter that returns with the position after the expression (expression may consist of +, -, *, /, (), sin(), cos(), tan(), sqrt(), asin(), acos(), atan(), exp(), log(), pi)
readRealParameter	Read the value of a Real parameter from file
readRealParameterModel	Demonstrate usage of Examples.readRealParameter/.expression
WriteRealMatrixToFile	Demonstrate usage of function Streams.writeRealMatrix
ReadRealMatrixFromFile	Demonstrate usage of function Streams.readRealMatrix