If I did a *ranking* Of the drawbacks that the institute in which I have been working for the last five years has been given to Linux (assuming that Guadalinex Edu can be called that) and to Free Software in general, without a doubt the palm would be taken by the OpenOffice’s math formula editor is worse than that of *Microsoft Word*.

Go ahead:

**I am not**mathematical (even if it has a solid foundation)**I ask little**to a formula editor (enough to cover my needs)- I consider that for those purposes there are
**more interesting solutions**(What Latex which is the one used in theses, theses and any publication in the Faculty) - with what OpenOffice Math brings
**leftover for**edit notes and exercises in**a****Institute**Secondary and Baccalaureate

Today I am going to remove a thorn that I had nailed and that is that to date I had not been able to answer colleagues from the Mathematics department *how to create systems of equations* with the formula editor and unsurprisingly, it is possible!

To obtain the following system of *linear equations*

we must write in the *formula editor*

alignr left none stack {{y + 2x + 3z = -9} # {2y + 4x + 5z = -7} # {-5x-6y-z = -1}} right rbrace

where the really interesting thing is

*stack {{..} # {..}}*being able to place as many pads (#) as equations we want to include.*left none*that allows us to indicate that we do not want (*none*) the left key appears.*right rbrace*to display the key on the right.

As a curiosity

*alignr*it is for the equations to appear half decent (correctly aligned) but it is totally optional.

## Modifications to the original idea

If we want to place the key on the left instead of the right

all we have to do is

- change the
*left none*for*left**lbrace* - and the
*right rbrace*for*right none*

The formula would be as follows

alignr left lbrace stack {{y + 2x + 3z = -9} # {2y + 4x + 5z = -7} # {-5x-6y-z = -1}} right none

## Recognition

Thanks to **Encarni Gomez** (*interim* of mathematics to which I could not resolve the question of how to do it) because one morning in the staff room he put me on the track by asking me about the subject when I had already used the primitive *stack*.

She chose to hand paint the *wrench* But it laid the groundwork for me to take up this topic again and discover the solution.

Thanks Encarni.