How to use tritrig:
tritrig is in the form 'tritrig(a,b,c,A,B,C)' where a b c A B C are the
angles and the lengths of a triangle. If your triangle has a right angle
in it, it must be 'C' and the hypotenuse must be 'c'. The angles and
lengths that you do not know must be typed as '0'
Changed the descriptions
Just a mistake