Mine (version 1.7) only returns Error: Memory. Emmanuel wrote in message <3549d4e2.21329565@news.wanadoo.fr>... >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