For the Windows version just doubleclick on the JMathLib icon
run JMathLib:
from the JMathLib main directory enter
java -cp bin jmathlib.ui.awt.GUI
for the simple AWT user interface, or enter
java -cp bin jmathlib.ui.swing.SwingGUI
for the more sofisticated swing version.
Just be sure that you are in the main directory of JMathLib. That is the directory with the subdirectories (e.g. bin, doc) in it.
There are script files to run MathLib from Windows or Linux
just enter execute.bat
options:
-t run in console mode
-width specify the width of the gui window
-height specify the height of the gui window
-width and -height cannot be used with -t