123 reputation
bio website vajris.wordpress.com/category/…
location France
age 26
visits member for 2 years, 7 months
seen Feb 22 at 16:04

Take of my android from charger, go to work, open matlab and do stuff with EEG, open LaTeX document and describe that stuff, program some stuff in free time...

revised Solve $\cos^2x-\sin^2x= 1$
added the end of solution