HP 10s+ - Scientific Functions; Trigonometric and Inverse Trigonometric Functions

16
Scientific Functions
• Some scientific calculations may take longer than
other types of calculations.
• You can start the next calculation after the after the
calculation result displays on screen.
•
π = 3.14159265359
Trigonometric and Inverse Trigonometric
Functions
• To change the current angle units (degrees,
radians, or grads), press
 repeatedly until the
following screen appears.
• Now press the number key (
, , or )
corresponding to the angle unit you want to use.
(Note that 90
° = radians = 100 grads)
• Example 1: sin12° 34’ 56” = 0.217840422
 ⋅⋅⋅ ⋅⋅⋅  (Deg)  12  34  56  
• Example 2: cos( rad) = 0.5
 ⋅⋅⋅ ⋅⋅⋅  (Rad)      3  
•Example 3: cos
-1
=0.25π(rad)(= (rad))
 ⋅⋅⋅ ⋅⋅⋅  (Rad)
 2  2 
•Example 4: tan
-1
0.789 = 38.27343992
 ⋅⋅⋅ ⋅⋅⋅  (Deg)   0.789 
To perform a scientific calculation, press  to
enter COMP mode.
COMP........................................................
 
Deg
1
Rad
2
Gra
3
π
2
---
π
3
---
2
2
-------
π
4
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