How do I tell maxima that I want a numerical answer to this?
-------------begin----------------
pulse: IF(x<0.1,1,0)$
quad_qags(pulse,x,0,1);
quad_qags(IF(x<0.1,1,0),x,0,1,epsrel=1.0*10^-8,epsabs=0.0,limit=200)
-----------end--------------------