# fouridx – Left sub- and superscripts in maths mode

The pack­age en­ables left sub­scripts and su­per­scripts in maths mode. The sub- and su­per­scripts are raised for op­ti­mum fit­ting to the sym­bol in­dexed, in such a way that left and right sub- and su­per­scripts are set on the same level, as ap­pro­pri­ate.
The pack­age pro­vides an al­ter­na­tive to the use of the \sideset com­mand in the ams­math pack­age.

CTAN path/macros/latex/contrib/fouridx