Math Plane 

Here are some random questions regarding features of the calculator.

(If you have questions or suggestions, feel free to contact us!)

1)  How do you adjust the brightness of the screen?

Press the blue Ctrl button (and, hold it). 

Press the + key

(and, to dim the screen: hold the blue Ctrl button and press the - key

2)  My trigonometry answers seem wrong. How do I switch from degrees to radians?

"on" (Home)

5 Setttings

2 Document Settings

Using the keypad, select "Angle"

In the dropdown menu, select Radian or Degree (or Gradian)

Scroll to the bottom and select "Make Default"

"Enter"

(Accept the changes)  "OK"

___________________________________________

Math Comic #107 - Infinite Monkey Theorem (10-10-13)

___________________________________________

3)  How do you enter combinations and permutations?

On (Home)

A Calculate 

Menu

5 Probability

2 Permutation   (or,  3 Combination)

nPr(8, 3)

(**Enter as an ordered pair)

the output: 336

___________________________________________

Connections

Statistics operations and other tutorial videos from profrobbob.com

___________________________________________