Question Number 23657 by Physics lover last updated on 03/Nov/17
$${Mr}.{Ajfour}\:,{which}\:{app}\:{do}\:{you} \\ $$$${use}\:{for}\:{making}\:{these}\:{diagrams}? \\ $$
Commented by ajfour last updated on 03/Nov/17
$${Lekh}\:{Diagram}\:! \\ $$