Displayed syntax for several math examples is incorrect - apparently due to 
missing curly braces.  For example, the third example of Symbols with indices 
says to use syntax "%PHI^i_1 i_2 dotsaxis i_n_k_1 k_2 dotsaxis k_n".  This 
doesn't work, but "%PHI^{i_1 i_2 dotsaxis i_n}_{k_1 k_2 dotsaxis k_n}" does.  
Similarly, the Matrix example says to use syntax "font sans bold size *1,5 A 
=left[matrixA_11#A_12#dotsaxis#A_1n##A_21# 
##A_2n##dotsvert###dotsvert##A_n1#A_n2#dotsaxis#A_nnright]" This doesn't work, 
but "font sans bold size*1.5 A =left[ matrix{A_11#A_12#dotsaxis#A_1n ##A_21#{}#
{}#A_2n##dotsvert#{}#{}#dotsvert##A_n1#A_n2#dotsaxis#A_nn }right]" does.  (in 
this last example, I had to replace "1,5" by "1.5" as well.) (NOTE:this is the 
first time I've submitted an issue -- I couldn't find a subcomponent for "Help" 
documentation -- Sorry if this is sent to the wrong place.)