eacteditor syntax

For chars and functions without arguments :
\name;
With arguments:
\name{arg1;arg2}
So, fraction is : \frac{1;2} (in latex this is \frac{1}{2} )
And pi is "\pi;" (in latex this is only "\pi" but there is a problem with the space after the function : we don't write the space because if you want write "a+ib", you need to put "a+\i b" and we don't want space here)