Improper (difficult) integrals at SwissMicros Calculator Forum

[lrdheat]

Even breaking it up into 4 integrals, from 10^-18 to 10^-17 + from 10^-17 to 10^-12 + from 10^-12 to 10^-6 + from 10^-6 to 1 yields 33.93+ on my $20 CASIO 991CW. Fascinating, illuminating integration problem for numerical integration capabilities!