Math & Science ⇒ sech(x) and other obscure trig functions

[cordeliawl]

I'm writing a math thesis that is heavy in hyperbolic trig functions. The hyperbolic sine and cosine functions are recognized by typing \cosh and \sinh but \sech is not recognized. I've been simply typing sech(z) for now but in math mode that is italicized and so it doesn't match the rest of my trig functions. Is there perhaps a package I should aquire or a command I could put around each use of "sech" that would make it match the font, etc. of the recognized trig functions.


If you could help I'd really appreciate it.

If it matters these are the libraries I have called in my preamble:

Code: Select all

\usepackage{graphicx,latexsym} 
\usepackage{amssymb,amsmath}
\usepackage{amsthm}
\usepackage{longtable,booktabs,setspace} 
\usepackage{url}
\usepackage{natbib}

Thanks,
Cordelia

[magicmoose]

Hi Cordelia,

Try adding this into your preamble

Code: Select all

\DeclareMathOperator{\sech}{sech}

Hope that helps

[cordeliawl]

That worked wonderfully! Thanks!