Casio fx-82MS Guide Book

36 Mastering the Calculator using the Casio fx-82MS
In the diagram,
To find the value of θ , you need to use the cos
–1
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).
1
c
os
2
θ =

Casio fx-82MS Specifications

General

Type	Scientific
Form factor	Pocket
Battery type	AA
Power source	Battery

Weight and Dimensions

Weight	125 g
Dimensions (WxDxH)	18.6 x 85 x 156 mm