Texas Instruments BA II PLUS User Manual page 20

Math Operations (cont.)
Some operations are performed immediately and do not require that
you press N.
Operation
Square root
Reciprocal
Factorial
Natural logarithm
Natural antilogarithm
Round
Random number*
Sine**
Cosine**
Tangent**
Arcsine**
Arccosine**
Arctangent**
Hyperbolic sine
Hyperbolic cosine
Hyperbolic tangent
Hyperbolic arcsine
Hyperbolic arccosine
Hyperbolic arctangent tanh
* The random number generated when you press & a may not be the one shown
here.
** Angles are interpreted according to the current setting for angle units (degrees or
radians). These examples show angles in degrees.
14
Example
15.5
1/3.2
5!
ln 203.45
.69315
e
Round 2 P 3 to the set
decimal format
Generate random
number
Store "seed" value
sin(11.54°)
cos(120°)
tan(76°)
-1
sin (.2)
-1
cos (-.5)
-1
tan (4)
sinh(.5)
cosh(.5)
tanh(.5)
-1
sinh (5)
-1
cosh (5)
-1
(.5)
Keystrokes
3
15.5
5
3.2
& g
5
>
203.45
& i
.69315
6 N & o
2 3
& a
D & a
& d
11.54
& e
120
& f
76
8 d
.2
S 8 e
.5
8 f
4
& c d
.5
& c e
.5
& c f
.5
& c 8 d
5
& c 8 e
5
& c 8 f
.5
BA II PLUS™ Calculator
Display
3.94
0.31
120.00
5.32
2.00
0.67
0.86
0.86
0.20
N0.50
4.01
11.54
120.00
75.96
0.52
1.13
0.46
2.31
2.29
0.55