I must be too far gone, my maple 10 will not agree with my TI-89. When I type sin(45) and press enter I get sin(45). Perfect! When I type sin(45.0) I get 0.8509035245 and I am expecting (.70710679). Now when I type cos(45) I get cos(45). Perfect! When I type sin(45.0) I get 0.5253219888 and I am expecting (.70710679). For sin(0) I get 0, but sin(90.0) I get (0.893???)when I am expecting 1.00. Likewise cos(0) I get a 1, but cos(90.0) I get (−.4480736161) when I am expect a zero. I promise that I am not on the sauce. Can anyone help straighten me out?

Is it possible to use Sketch and draw a straight line? I want to use document mode to retype my class notes so I want to include graphs and illustartions. I am taking PHY-2048 where we are studing vectors, dot product, cross product etc.

I have been using Maple 10 for a couple of months. Reading from the User Manual and working with the program to get up to speed. I can write functions and procedures just fine, and they work great within the worksheet that I have open at the time. I want to be able to save these items for use in other worksheets or documents later on. I have not been able to find a way to save, recall or send to a custom library. What is a boy to do? Sincerely, Daniel Cahoon