dvipng warning: DVI magnification of 1000 over-ridden by user (1400) dvipng warning: DVI magnification of 1000 over-ridden by user (1400) dvipng warning: DVI magnification of 1000 over-ridden by user (1400) tex.texi:7: warning: @tex should only appear at a line beginning
tex.texi:14: superfluous argument to @end tex:  bidule
tex.texi:42: warning: @\ should only appear in math context
dvipng warning: DVI magnification of 1000 over-ridden by user (1400) 