Scientific Calculation; Reciprocal, Factorial; Square, Square / Cubic Root, Power, Root; Logarithms And Antilogarithms - Datexx DS-834 User Manual

Before performing the following calculation, check to see that
your calculator is fixed at 2 decimal places display format.

Reciprocal, Factorial

1
= ?
1.25
5! = ?

Square, Square / Cubic Root, Power, Root

2 4
2 + 3 = ?
√ √
3
5 x 27 +
= ?
√
9
72 = ?

Logarithms and Antilogarithms

ln7 + log100 = ?
2
10 = ?
5 – 2
e - e = ?
Fractional calculation
Fraction value display is as follow :
56
∪ ∪ ∪ ∪ ∪
(Note) : Total of integer, numerator and denominator must be
within 10 digits, or the fractional value couldn't be shown
completely.
By pressing [ 2ndF ] [ d/e ], the displayed value will be converted
to the improper fraction.
2 3
+ 7
3 5
4
= 8
15
124
=
15
When a press of [a b/c] key after the [ = ] key or a fraction
performed with a decimal, the answer is displayed as a decimal.
4 3
5 + 3
9 4
7
= 9
36

Scientific calculation

1.25 [ 2ndF ] [1/X] [ = ]
5 [ 2ndF ] [ X! ] [ = ]
2 [ X
34 5 [ x ] 27 [ 2ndF ] [
[ + ] 34 [ √ ] [ = ]
72 [ 2ndF ] [
7 [ ln ] [ + ] 100 [ log ] [ = ]
2 [ 2ndF ] [ 10
5 [ 2ndF ] [ e
2 [ +/– ] [ 2ndF ] [ e
5 ┘ ┘ ┘ ┘ ┘ 12 Display of
5 ┘ ┘ ┘ ┘ ┘ 12 Display of 56
2 [a
7 [a
[ 2ndF ] [
5 [a
[+] 3 [a
2 y
] [ + ] 3 [ X ] 4 [ = ]
3
y
√
] 9 [ = ]
X
x
] [ = ]
x
] [ – ]
5
12
12
b
] 3 [ + ]
c
b b
] 3 [a ] 5 [ = ]
c c
d
]
e
b b
] 4 [a ] 9 [ + ]
c c
b b
] 3 [a
c c
E - 10
DEG
DEG
DEG
DEG
√ ]
DEG
DEG
DEG
DEG
x
] [ = ]
5
DEG
DEG
DEG
] 4 [ = ]
0.80
120.00
85.00
20.83
1.61
3.95
100.00
148.28
8 4 15
∪ ∪ ∪ ∪ ∪
┘ ┘ ┘ ┘ ┘
124 15
┘ ┘ ┘ ┘ ┘
9 7 36
∪ ∪ ∪ ∪ ∪
┘ ┘ ┘ ┘ ┘