correct image
https://meta.wikimedia.org/wiki/Help:Displaying_a_formula#Fractions.2C_matrices.2C_multilines
https://en.wikipedia.org/wiki/Help:Displaying_a_formula#Fractions.2C_matrices.2C_multilines
Arrays: {|c|c||c|} where || - 2lines
it's in Wikipedia if the settings "PNG images"
but if there "MathML with SVG or PNG"
then || shown as a single line
Version: unspecified
Severity: normal
Attached: