In Holland I am a partner in a forum with students on various levels and help/discus with them problems in studying mechanics and specially not to complicated constructions (static) with calculations of beams , girders , columns , etc.including strength,tensions,bending.Formulas as W= (bh^2)/6 and I =(bh^3)/12 ,bending f= (5ql^4)/(384EI) and so on.
Those formulas we can accentuate with special symbols by means of a LATEX-symbol program ,that I do not see here in those little windows (I sea Bold,Ital,etc,but not Latex or symbols!).
Who is interested to solve his/her mechanical problems in Anglais?
Un example d'une idee comment faire une solution avec aide d'un schema:

ou faire une CREMONA -diagram d'une construction:

