General ⇒ user defined variable

[vivelafete]

it is possible to do something like:

\new_length{width_p3_table1_col1}{1234cm}

and then use the variable later in a table like p{width_p3_table1_col1}.

Thanks

[frabjous]

The syntax is:

\newlength{\width_p3_table1_col1}
\setlength{\width_p3_table1_col1}{1234cm}

and then:

p{\width_p3_table1_col1}

[phi]

Beware: underscores and digits are not allowed in control sequence names.