Exponential And Logarithmic Functions - Casio fx-82MS Manual Book

36
Mastering the Calculator using the Casio fx-82MS
1
θ
=
In the diagram,
cos
2
θ
–1
To find the value of , you need to use the cos key. The calculator keystrokes are:
Note: You must first get the value of the division by using the brackets.
Your display should read 60°. If it does not, check that you are in degree mode.

13. Exponential and logarithmic functions

There are two log keys on your calculator, with their associated exponential keys. The latter
are accessed by first using the shift key:
The 'log' key uses base 10 and the 'ln' key uses base e (natural logarithm).