math=m
mi=I
mn=N
mo=O
mtext=D
mfrac=F
msqrt=E
mroot=G
mfenced=H
menclose=A
msup=J
msubsup=K
munder=L
mover=M
munderover=B
mmultiscripts=C
mlabeledtr=P
mtr=Q
mtd=Z
mlongdiv=S
msgroup=T
msrow=U
mscarries=V
mscarry=W
msline=X
maction=Y
mrow=R
msub=s
mtable=t
ms=a
none=n
mprescripts=p
cn=n
ci=i
csymbols=s
apply=a
bvar=b
bind=d
interval=t