>How do you get the TI-92 to consider more than one restriction for >calculations and graphing? For example, I know how to make a restriction of >"x<=4", but how can you use a restriction such as "0<=x<=4"? f(x)|x>=0 and x<=4 ^^^ You can find this out by reading page 468 of your manual. ____________________________________________________________ Nathan Sutcliffe nsutclif@intergate.bc.ca