INSTRUCTIONS: These pages may display equations using a modified LaTeX scheme, and when you are required to input equations, you will need to use this scheme also. Sub and super scripts are indicated with `^' = superscript, and `_' = subscript, respectively. By LaTeX convention, the next character only is super or sub scripted unless one specifically uses curly brackets. Thus
e_2z means , while e^2z means . To do what is expected, i.e.,

use e^{2z}.

On the other hand, when you are required to input equations, you will need to type them in (no sub- or superscripts allowed) in linear fashion. This means that you must indicate powers either with `^' or `**', and use regular brackets i.e., `)' and `('. Thus, e**(2*z) is the correct form for inputting the above expression. Usually, the computer understands e, pi, h and hbar, c, etc.. Note that `e**(2*z)' is the same as `exp(2*z)'. Note further that `exp(2z)' will not be understood! Finally, square roots are indicated with `sqrt(2*z)', as an example. ==============SOME SELECTED UNITS ==================