Dear Fons&Rene, What is the best way to introduce a complex data type (actually both, compex floats and complex doubles) into root? The complex type should have real and imaginary parts stored sequentially in memory - to make it easy to link to fortran legacy libs (such as FFT, complex matrix algebrea, etc). The main question is: do you plan to support a Complex_t and a ComplexD_t type (or similar root names) in the near future and have the streamers, trees etc support this type natively? (Can't do FFT without some complex type!!). That would be great (and easy to do). Otherwise we would have to come up with some TComplex class on our own. In the latter case, would you be so kind and give us some advice how YOU would design a TComplex class the integrates most easily into the root architecture? Is the STL complex template supported, or is this still not an advisable route? The same for int64 type. (There you mentioned a few weeks ago you would support this type in an upcoming version. Guess, we just have to be patient on that one.....) Also, I was wondering, with the advent of 64bit intel processors, would it be hard to convert root files to 64 bit addressing, thereby lifting the 2Gb file size limit? Any plans regarding 64bit? Thanks, Peter **************************************************************************** Peter Lipa, PhD e-mail: lipa@nsma.arizona.edu Arizona Research Labs - Neural Systems, Memory and Aging University of Arizona Life Sciences North Bldg, Room 384; Phone: (520) 626-3101 Tucson, AZ 85724-515 Fax: (520) 626-2618 ****************************************************************************
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