HP 300s Scientific Calculator - Manual (Page 37)

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Example 1: To convert the following values into degrees:
radians=90 ° , 50 grads = 45 °
The following procedure assumes that the calculator’s default
angle unit is degrees.

   ( π )   
  DRG ►  ( r ) 
    (DRG ►)
 (g) 
Example 2: cos( π radians) = -1, cos (100 grads) = 0

   ( π )  
(DRG ►)  (r)  
     (DRG ►)
 (g)  
Example 3: cos -1 (-1) = 180
cos -1 (-1) = π

   (cos -1 )   

   (cos -1 )   

Exponential Functions and Logarithmic
Functions
• For the logarithm function ”log(“, you can specify base m
using the syntax “log (m,n)”.
If you input only a single value, a base of 10 is used for the
calculation.
π
2
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