Simple mathematical models can be created using spreadsheets such as '''[http://office.microsoft.com/en-gb/excel/ Microsoft Excel]''' or the spreadsheet in '''[http://www.openoffice.org/ OpenOffice]'''. However, specialist software such as '''[http://www.berkeleymadonna.com/ Berkeley Madonna]''', or '''[http://www.r-project.org/ R]''' may be required for more complicated models.
+
Simple mathematical models can be created using spreadsheets such as '''[http://office.microsoft.com/en-gb/excel/ Microsoft Excel]''' or the spreadsheet in '''[http://www.openoffice.org/ OpenOffice]'''. However, specialist software, such as that below, or '''[http://www.r-project.org/ R]''' may be required for more complicated models.
+
+
'''Berkeley Madonna''' ''(Differential equation solver, with a graphical interface if desired)'' http://www.berkeleymadonna.com/
+
+
'''WinSAAM''' ''(Modelling program enabling the user to explore biological systems using mathematical models)'' http://www.winsaam.com/#WinSAAM