WeBWorK Problems

missing braces

missing braces

by Siman Wong -
Number of replies: 1

I just noticed that several webwork problems do not display the left/right braces (for sets) in several problems.  Here are snippets of the relevant codes (the double quotes are part of the original codes):

"\( $lbrace x \in \mathbb{R} \mid x^2-2=0 $rbrace\)"

"\( $LBRACE x \in \mathbb{Q} \mid x^2-2=0 $RBRACE\)"

"\($LB 3 $RB \) is an element of \($LB $LB 3 $RB $RB\)."

In case this matters,  I am using webwork 2.15, and here are the macros used:














Many thanks for your help!

In reply to Siman Wong

Re: missing braces

by Andrew Parker -

All three examples occur in LaTeX math-mode, so there is no reason to use perl variables for \lbrace and \rbrace... just use the LaTeX commands directly.

The variable forms of left and right brace in PG are provided so that these symbols can be used outside of a math-mode environment. (Similar to $DOLLAR)