3 bugs on TI92 ?

[Prev][Next][Index][Thread]

3 bugs on TI92 ?

   My ROM version is   1.3 October 20, 1995


1) Graph this function on a TI92 :


       1 + x - 1
   y1=-----------       The result is 1 only for 0 it is undef.
           x


   but take a look on the graph with this parameters :


   xmin = 0
   xmax = 1e-12
   xscl = 1e-13
   ymin = 0
   ymax = 2
   yscl = 1
   xres = 1


2) 112843*209263=23613864709
   the result of factor(23613864709) is 23613864709
   Is there a limitation in integer factorization ?


3) Try to calculate the det of that matrix


   64919121    -159018721
   41869520.5  -102558961      the result is 0 !!!


   and with that matrix (the same with EXACT values)


   64919121    -159018721


   83739041
   --------    -102558961      the result is -1/2 (correct)
      2


   Strange results ! or not ?
                     _   _         _
   /\  /\   __ _ _ _| |_(_)_ __   | |    __  _ _  __ _ _ __   __
  /  \/  \ / _` | '_|  _| | '_ \  | |   /  \| '_|/ _` | '_ \ / _ \
 / /\  /\ \ (_| | | | | | | | | | | |__( () ) | ( (_| | | | | (_) |
/_/  \/  \_\__,_|_| |_| |_|_| |_| |____|\__/|_|  \__,_|_| |_|\_   |
                                                              _)  |
martin.lorang@wanadoo.fr                                     |___/