Hi Martina, the TVector and TMatrix classes use the Real_t typdef to specify the precision. Real_t is a float. In principle it should be possible to take the TMatrix and TVector files, change the class names and all occurances of Real_t to Real64_t (a global edit would do). Clearly these classes are candidates to become template classes. Any volunteers? Cheers, Fons. Krieg, M. wrote: > > Hi everybody, > I have a question about TVector and TMatrix of the old ROOT-version (1.03). > Is it possible to use the benefits of these classes with double precision? > In other words: > How (and where) can I change the Real_t type into a double precision type? > Thanks in advance for the answer! > > Martina > > P.S.: ROOT is a great project! -- Org: CERN, European Laboratory for Particle Physics. Mail: 1211 Geneve 23, Switzerland Phone: +41 22 7679248 E-Mail: Fons.Rademakers@cern.ch Fax: +41 22 7677910
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