Re: The "\DeclareMathOperator"command in my lyx doesn't work,please help!

On 23.07.08, Richard heck wrote: > LittleNew wrote: >> I wanted to add a "\arccot" self-defined function in my >> document, and I followed the help's instruction to add >> "\DeclareMathOperator{\arccot}{arccot}" in "Document->settings...->LaTeX >> Preamble", but after I did it, nothing happened.

The "\DeclareMathOperator"command in my lyx doesn't work,please help!

Hello I'm new to Lyx. I wanted to add a "\arccot" self-defined function in my document, and I followed the help's instruction to add "\DeclareMathOperator{\arccot}{arccot}" in "Document->settings...->LaTeX Preamble", but after I did it, nothing happened. When I typed "\arccot", it still does

Re: The "\DeclareMathOperator"command in my lyx doesn't work,please help!

LittleNew wrote: Hello I'm new to Lyx. I wanted to add a "\arccot" self-defined function in my document, and I followed the help's instruction to add "\DeclareMathOperator{\arccot}{arccot}" in "Document->settings...->LaTeX Preamble", but after I did it, nothing happened. When I typed