- a thick space. Both issues are simply artifacts of the maths mode in that it treats it as a mathematical expression. - a negative thin space.
Here we arrange the equations in three columns.
Spacing around operators and relations in math mode are governed by specific skip lengths. EquatIO mathspace understands input in LaTeX the typesetting and mark-up language thats widely used for mathematical and scientific documents and publications. For relationnal operators such as and LaTeX establishes thickmuskip space. The difference is almost unnoticeable.