HP 10s Scientific Calculator - Manual (Page 20)

Scientific Functions
To perform a scientific function calculation, press
I
me I to enter COMP mode.
COMP...................................................................................
]□:
Some scientific calculations may take longer than
other types of calculations.
You can start the next calculation after the
calculation result displays on the screen .
;r = 3.14159265359
Trigonometric ond Inverse Trigonometric Functions
To change the current angle units (degrees,
radians or grads), press repeatedly until
the following screen appears.
Deg Rad Gra
1 2 3
Now press the number key ( CD , H or Ci] '
corresponding to the angle unit you want to use.
(Note thot 90°= ^ radians = 100 grads )
Example 1: sin 12” 34’ 56” =0.21 7840422
H............. E (Deg) H 1 2 H 3 4 H 5 6 H B
Example 2: cos( — rad)=0.5
H............. H (Rad) M m S F i 1 ^ B 3 m B
Example 3: cos ' — =0.25Tr(rad)(= — (rad))
gi.............ES (Rad)
ME°f^mEH2B2m B W B E H i F T l ^ B
Example 4:tan '0.789=38.27343992
H............. CD (Deg) [Wi] S 0.789 B
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