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Latest news 2020-07-03: SmashWords sale (ends 31st July 2020): 50% off crime/SF novel The Private Enemy and 100% off (free!) I’ve Heard the Mermaid Sing.

B.22 Missing delimiter

You have forgotten to specify the type of delimiter you want (for example, ( ) [ ] \{ \}). (Remember to use a . if you want an invisible delimiter, and remember that if you want a curly brace, you must have a backslash followed by the curly brace.)

Example:

This error will occur if you do, say,


f(x) = \left{
\begin{array}{ll}
0 & x \leq 0\\
1 & x > 1
\end{array}
\right.
instead of

f(x) = \left\{
\begin{array}{ll}
0 & x \leq 0\\
1 & x > 1
\end{array}
\right.


This book is also available as A4 PDF or 12.8cm x 9.6cm PDF or paperback (ISBN 978-1-909440-00-5).

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