# The block math equation produce extra <br>

@dae I use the 2.1.52rc3
When I use the $ and $ to type block math equation, when i first type $ then type enter，As shown below \[ x_{1}=\frac{D_{1}}{D}, x_{2}=\frac{D_{2}}{D}, \cdots, x_{n}=\frac{D_{n}}{D}$


the html show extra <br>

but, if similary to below picture, it works normal

$x_{1}=\frac{D_{1}}{D}, x_{2}=\frac{D_{2}}{D}, \cdots, x_{n}=\frac{D_{n}}{D}$


I think this is relevant:

If you want to use newlines in a MathJax expression, please use Shift+Enter instead of just Enter, as a normal newline will prevent MathJax from working correctly.

https://docs.ankiweb.net/math.html#mathjax

(I can’t reproduce the issue on 2.1.51 though; Anki is stripping the line breaks when rendering the equations)

UPDATE: Shift+Enter doesn’t work for me on 2.1.52, so this is apparently a bug.