# Derivatives of sums do not always display correctly in notebook

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While expressions of the type \nabla_{f}{a_{c} d+b_{c}} print correctly, the ones without explicit derivative index, \nabla{a_{c} d+b_{c}}, fail to print brackets.

## Details

Id: | 9c8f132023a13bdea10ef87e26d37d681705a8d1
Type: | bugfix
Creation time: | 2009-09-02 19:08 GMT
Creator: | Kasper Peeters <kasper.peeters@...>
Release: | 1.17 (released 2010-01-28)
Component: | cadabra
Status: | closed: fixed

## Issue log

2010-01-20 21:26 GMT | Kasper Peeters <kasper.peeters@...> | closed with disposition fixed
Hopefully finally fixed now, brackets remain somewhat of a hack...
2009-09-02 19:09 GMT | Kasper Peeters <kasper.peeters@...> | created