Texas Instruments BA II Plus User Manual

14 BA II PLUS™ Calculator
Math Operations (cont.)
Some operations are performed immediately and do not require that
you press
N
.
Operation Example Keystrokes Display
Square root
15.5
15.5
3
3.94
Reciprocal 1/3.2
3.2
5
0.31
Factorial 5!
5
& g
120.00
Natural logarithm ln 203.45
203.45
>
5.32
Natural antilogarithm e
.69315
.69315
& i
2.00
Round Round 2
P
3 to the set
decimal format
2
6
3
N & o
0.67
Random number* Generate random
number
& a
0.86
Store “seed” value
D & a
0.86
Sine** sin(11.54°)
11.54
& d
0.20
Cosine** cos(120°)
120
& e
N
0.50
Tangent** tan(76°)
76
& f
4.01
Arcsine** sin
-
1
(.2)
.2
8 d
11.54
Arccosine** cos
-
1
(-.5)
.5
S 8 e
120.00
Arctangent** tan
-
1
(4)
4
8 f
75.96
Hyperbolic sine sinh(.5)
.5
& c d
0.52
Hyperbolic cosine cosh(.5)
.5
& c e
1.13
Hyperbolic tangent tanh(.5)
.5
& c f
0.46
Hyperbolic arcsine sinh
-
1
(5)
5
& c 8 d
2.31
Hyperbolic arccosine cosh
-
1
(5)
5
& c 8 e
2.29
Hyperbolic arctangent tanh
-
1
(.5)
.5
& c 8 f
0.55
* 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.

Texas Instruments BA II Plus Specifications

General

Type	Financial
Cover	-
Form factor	Pocket
Control type	Buttons
Product color	Black
Digits	10 digits
Display tilting	No
Display number of lines	1 lines
Memory registers	10
Power source	Battery