The Masstoy applet is now in test use. This applet allows you to make theoretical experiments with neutrino mass matrices. Presently it serves as an educational toy - the results do not meet the requirements of scientific rigor. Mass Toy has been written with the Java 1.1 specification, and compiled with JDK 1.1.6. Mass Toy 0.41 is available as a zip file.
Instructions Insert the mass matrix, component by component.
Only real numbers allowed. Select Symmetrize from the menu - the mass matrix will be automatically symmetrized. Choose Dirac or Majorana masses. Click the checkbox to add right-handed neutrinos. Select Diagonalize from the menu.