Yes indeed you will get a "very very bad surprise". Now before anyone else does this back up your memory. Well TI, what do you have to say? Gary Wardall >sorry for my poor English ! >there is a big error with the TI: >put the mode 'Complex format'-> 'polar' >Do: e^(i*t)->z >(1+z)/(1-z) > >And if your memory is not totaly free, you will have a very very bad >surprise ! > >Emmanuel >emmanuel@wanadoo.fr