The Angle and Test Menus
In This Chapter
Converting between degrees and radians
Entering angles in degrees, minutes, and seconds
Converting rectangular and polar coordinates
Overriding the angle mode of the calculator
Comparing numbers using the Test menu
Testing equivalent expressions
“What mode is my calculator in?” I used to get that question all the time in my classroom. If you have the TI-84 Plus C, a quick glance at the top of the Home screen informs you of your most important mode decision: Radian or Degree mode? That’s the question. It’s likely that your Physics teacher needs your calculator in Degree mode and your Pre-calculus teacher wants Radian mode. How can you make everyone happy?
The reality is you need to be able to change the mode to fit the needs of the class you’re in. In this chapter, I show tips on converting angles, expressions, and coordinates to the ...